Annals of Occupational and Environmental Medicine

Original Article

Relationship between the use of hair products and urine benzophenone-3: the Korean National Environmental Health Survey (KoNEHS) cycle 4: Siyoung Kim, Seong-yong Cho, Seongyong Yoon, Daehwan Kim, Hyun Woo Park, Jisoo Kang, Sung Woo Huh; Ann Occup Environ Med 2024;36:e20. Published online August 6, 2024; DOI: https://doi.org/10.35371/aoem.2024.36.e20

Abstract Abstract in Korean PDF Supplementary Material PubReader ePub

Background

Benzophenone-3 is a type of ketone with 2 benzene rings attached to a carbonyl group (C=O) and one benzene ring attached to a hydroxyl group (-OH). As an endocrine-disrupting chemical, benzophenone-3 is known to be associated with reproductive, developmental, thyroid, and endocrine toxicities. Benzophenone-3 is commonly used in hair products, cosmetics, and ultraviolet (UV) filters because of its characteristic property to absorb UV light. This study aims to investigate the association between the use of hair products and urine benzophenone-3 using the data from the Korean National Environmental Health Survey (KoNEHS) cycle 4 (2018–2020), which represents the Korean population.

Methods

Using the KoNEHS cycle 4 survey, the data of 3,796 adults aged ≥ 19 years were analyzed. Based on the 75th percentile concentration of urine benzophenone-3, the participants were divided into the low- and high-concentration groups. Chi-square test was conducted to analyze the association of urine benzophenone-3 with distribution of general characteristics, use of personal care products, consumption of marine foods, and use of plastic products as the variable. Logistic regression analysis was conducted to calculate odds ratios (ORs) for the high-concentration group of urine benzophenone-3 based on the use of hair products.

Results

Women with < 6 times or ≥ 6 times of hair product usage had significantly higher adjusted ORs compared to those who did not use hair products. The calculated ORs were 1.24 (95% confidence interval [CI]: 1.12–1.38) for women with < 6 times of usage and 1.54 (95% CI: 1.33–1.79) for women with ≥ 6 times of usage.

Conclusions

This study revealed the association between the use of hair products and the concentration of urine benzophenone-3 in the general Korean population.

제4기 (2018-2020) 국민환경보건 기초조사를 이용한 헤어제품사용과 요중 벤조페논-3(benzophenone-3)과의 관계
목적
벤조페논-3은 2개의 벤젠고리가 카르보닐기(C=O)에 결합된 케톤 형태로 이루어져 있으며, 한개의 벤젠고리에 히드록시기(-OH)가 결합된 형태를 가지고 있다. 벤조페논-3은 내분비계교란화합물(Endocrine disrupting chemical)로서 생식독성, 발달독성, 갑상선 및 내분비계 독성 등을 가지고 있는 것으로 알려져 있다. 벤조페논-3은 자외선을 흡수하는 특성이 있어, 헤어제품(hair product), 화장품, 자외선차단제 등에 사용된다. 본 연구에서는 대한민국 인구집단를 대표하는 국민환경보건기초조사(KoNEHS) 4주기(2018-2020)의 데이터를 이용하여 헤어제품 사용과 요중 벤조페논-3과의 연관성을 확인하고자 한다.
방법
KoNEHS 4주기의 데이터에서 19세 이상 성인 3,796명의 참가자를 분석하였다. 요중 벤조페논-의 75번째 백분위 수 농도를 기준으로 저농도군과 고농도군으로 나누었다. 연구대상의 요중 벤조페논- 3농도와 일반적 특성, 개인 및 위생용품사용, 해양생물 섭취, 플라스틱용품사용 간의 분포 및 평균을 비교하기 위하여 독립 t-검정과 χ2 테스트를 실시하였다. 헤어제품에 대한 요중 벤조페논-3 대한 승산비(ORs)는 일반적 특성, 개인 및 위생용품사용, 해양생물 섭취, 그리고 플라스틱용품 사용을 보정한 후 로지스틱 회귀분석을 사용하여 계산하였다.
결과
본 연구에서는 여성에서 헤어제품 ‘주 6회 미만 사용군’과 ‘주 6회 이상 사용군’은 ‘사용안함군’에 비해 요중 벤조페논-3 고농도군에 속할 OR 값이 증가하였다. 계산된 OR값은 ‘주 6회 미만 사용군’ 1.24(95% CI: 1.12-1.38), ‘주 6회 이상 사용군’ 1.54 (95% CI: 1.33-1.79)이었다.
결론
본 연구를 통해서 헤어제품 사용과 요중 벤죠페논-3과의 연관성을 확인할 수 있었다.

Citations

Citations to this article as recorded by

Environmental disease monitoring by regional Environmental Health Centers in Korea: a narrative review
Myung-Sook Park, Hwan-Cheol Kim, Woo Jin Kim, Yun-Chul Hong, Won-Jun Choi, Seock-Yeon Hwang, Jiho Lee, Young-Seoub Hong, Yong-Dae Kim, Seong-Chul Hong, Joo Hyun Sung, Inchul Jeong, Kwan Lee, Won-Ju Park, Hyun-Joo Bae, Seong-Yong Yoon, Cheolmin Lee, Kyoung
The Ewha Medical Journal.2025;[Epub] CrossRef
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Sooyeon Hong, Ok-Jin Kim, Sun Kyoung Jung, Hye Li Jeon, Suejin Kim, Jihyon Kil
Toxics.2024; 12(11): 829. CrossRef

1,281 View
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2 Web of Science
2 Crossref

Original Article

Relationship between crustacean consumption and serum perfluoroalkyl substances (PFAS): the Korean National Environmental Health Survey (KoNEHS) cycle 4: Sung Woo Huh, Seong-yong Cho, Seongyong Yoon, Daehwan Kim, Hyun Woo Park, Jisoo Kang, Keon Woo Kim; Ann Occup Environ Med 2024;36:e12. Published online April 19, 2024; DOI: https://doi.org/10.35371/aoem.2024.36.e12

Abstract Abstract in Korean PDF PubReader ePub

Background

Perfluoroalkyl substances (PFASs) are non-aromatic organic compounds, whose hydrogen atoms in the carbon chain substituted by fluorine atoms. PFASs exhibit developmental toxicity, carcinogenicity, hepatotoxicity, reproductive toxicity, immunotoxicity, and hormone toxicity. PFASs are used in the production of disposable food packages, aircraft and automobile devices, cooking utensils, outdoor gear, furniture and carpets, aqueous film forming foam (AFFF), cables and wires, electronics, and semiconductors. This study aimed to determine the association between crustacean consumption and serum PFASs.

Methods

Adult participants (2,993) aged ≥ 19 years were extracted from the 4th cycle data of the Korean National Environmental Health Survey (KoNEHS). Based on the 50th percentile concentrations of serum PFASs, participants were divided into the low-concentration group (LC) and the high-concentration group (HC). General characteristics, dietary factors, coated product usage, and personal care product usage, an independent t-test and χ² test were analyzed. The odds ratio (OR) of serum PFAS concentration against crustacean consumption was estimated via logistic regression analysis adjusting for general characteristics, dietary factors, coated product usage, and personal care product usage.

Results

The OR for the HC of serum PFASs was higher in individuals with ≥once a week crustacean consumption than in those with < once a week crustacean consumption. Estimated ORs were perfluorohexanesulfonic acid 2.15 (95% confidence interval [CI]: 1.53–3.02), perfluorononanoic acid (PFNA) 1.23 (95% CI: 1.07–1.41), and perfluorodecanoic acid (PFDeA) 1.42 (95% CI: 1.17–1.74) in males, and perfluorooctanoic acid 1.48 (95% CI: 1.19–1.84), perfluorooctanesulfonic acid 1.39 (95% CI: 1.27–1.52), PFNA 1.70 (95% CI: 1.29–2.26) and PFDeA 1.43 (95% CI: 1.32–1.54) in females.

Conclusions

This study revealed the association between the crustacean consumption and concentrations of serum PFASs in general Korean population.

제4기(2018-2020) 국민환경보건 기초조사 자료를 이용한 갑각률 섭취와 혈청 괍불화화합물(PFAS)과의 관계
목적
과불화화합물은 탄소 사슬에 결합 되어 있는 수소 원자가 불소 원자로 대체된 비방향족 유기 화합물이다. PFAS 는 발달 독성, 발암성, 간 독성, 생식 독성, 면역 독성, 신경 독성 및 호르몬 독성 등을 가진다. PFAS는 일회용 식품 포장, 항공, 자동차, 조리기구, 아웃도어 용품, 가구 및 카펫, 수성막포, 케이블 및 배선, 전자 및 반도체 생산에 사용된다. 본 연구에서는 국가를 대표하는 조사인 한국 국민환경보건 기초조사(KoNEHS) 4주기의 데이터를 사용하여 갑각류 섭취와 혈청 PFAS노출과의 연관성을 확인하려고 한다.
방법
KoNEHS 4주기의 데이터에서 19세 이상 성인 2,993명의 참가자를 분석하였다. 혈청 PFAS 의 50번째 백분위 수 농도를 기준으로 저농도군과 고농도군으로 나누었다. 연구대상의 혈청 PFAS 농도와 일반적 특성, 식이요인, 코팅용품 사용, 미용제품 사용간의 분포 및 평균을 비교하기 위하여 독립 t-검정과 χ2 테스트를 실시하였다. 갑각류 섭취에 대한 혈청 PFAS의 승산비는 일반적 특성, 식이요인, 코팅용품 사용, 미용제품 사용을 보정한 후 로지스틱 회귀분석을 사용하여 계산하였다.
결과
본 연구에서는 갑각류 주1회이상 섭취군은 주1회미만 섭취군에 비해 혈청 PFAS 고농도군에 속할 OR 값이 증가하였다. 남성에서는 PFHxS 2.15(95% confidence interval [CI]; 1.53-3.02), PFNA 1.23(95% CI; 1.07-1.41), PFDeA 1.42(95% CI; 1.17-1.74), 여성에서는 PFOA 1.48(95% CI; 1.19-1.84), PFOS 1.39(95% CI; 1.27-1.52), PFNA 1.70(95% CI; 1.29-2.26), PFDeA 1.43(95% CI; 1.32-1.54) 이었다.
결론
갑각류 섭취 횟수가 많을수록 혈청 PFAS (PFOA, PFOS, PFHxS, PFNA, PFDeA) 농도가 증가하였다.

Citations

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Environment-wide association study of five per- and polyfluoroalkyl substance (PFASs) exposure pathways in Korean adolescents from the Korean National Environmental Health Survey (2018–2020)
Soonsu Shin, Dajeong Ham, Sanghyuk Bae
Chemosphere.2025; 373: 144161. CrossRef
Environmental disease monitoring by regional Environmental Health Centers in Korea: a narrative review
Myung-Sook Park, Hwan-Cheol Kim, Woo Jin Kim, Yun-Chul Hong, Won-Jun Choi, Seock-Yeon Hwang, Jiho Lee, Young-Seoub Hong, Yong-Dae Kim, Seong-Chul Hong, Joo Hyun Sung, Inchul Jeong, Kwan Lee, Won-Ju Park, Hyun-Joo Bae, Seong-Yong Yoon, Cheolmin Lee, Kyoung
The Ewha Medical Journal.2025;[Epub] CrossRef
The Exposure Status of Environmental Chemicals in South Korea: The Korean National Environmental Health Survey 2018–2020
Sooyeon Hong, Ok-Jin Kim, Sun Kyoung Jung, Hye Li Jeon, Suejin Kim, Jihyon Kil
Toxics.2024; 12(11): 829. CrossRef

1,048 View
187 Download
2 Web of Science
3 Crossref

Original Article

Relationship between the use of plastics in refrigerator food storage and urine phthalate metabolites: the Korean National Environmental Health Survey (KoNEHS) cycle 3: Jisoo Kang, Seong-yong Cho, Seongyong Yoon; Ann Occup Environ Med 2023;35:e53. Published online December 27, 2023; DOI: https://doi.org/10.35371/aoem.2023.35.e53

Abstract Abstract in Korean PDF PubReader ePub

Background

Plastics are high-molecular-weight materials composed of long carbon chains. They are prevalent in daily life, present in various items such as food containers and microwavable packaging. Phthalates, an additive used to enhance their flexibility, are endocrine-disrupting chemicals. We utilized the data from the Korean National Environmental Health Survey (KoNEHS) cycle 3, representing the general South Korean population, to investigate the relationship between the use of plastics in refrigerator food storage and phthalate exposure.

Methods

We assessed 3,333 adult participants (aged ≥ 19 years) including 1,526 men and 1,807 women, using data from KoNEHS cycle 3. Using the 75th percentile concentration, urine phthalate metabolites were categorized into high and low-concentration groups. χ² test was conducted to analyze variations in the distribution of each variable, considering sociodemographic factors, health-related factors, food intake, the use of plastics, and the concentration of urine phthalate metabolites as the variables. To calculate odds ratios (ORs) for the high-concentration group of urine phthalate metabolites based on the use of plastics in refrigerator food storage, logistic regression analysis was conducted.

Results

In men, the use of plastics in refrigerator food storage had significantly higher adjusted ORs compared to those using the others. The adjusted ORs were calculated as follows: mono-(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) had an OR of 1.35 (95% confidence interval [CI]: 1.05–1.72), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) had an OR of 1.48 (95% CI: 1.16–1.88), mono-(2-ethyl-5-carboxypentyl) phthalate (MECPP) had an OR of 1.32 (95% CI: 1.04–1.66), ∑di(2-ethylhexyl) phthalate (∑DEHP) had an OR of 1.37 (95% CI: 1.08–1.74) and mono-n-butyl phthalate (MnBP) had an OR of 1.44 (95% CI: 1.13–1.84).

Conclusion

The concentrations of urine phthalate metabolites (MEHHP, MEOHP, MECPP, ∑DEHP, and MnBP) were significantly higher in men who used plastics in refrigerator food storage compared to those using the others.

제3기(2015-2017) 국민환경보건 기초조사 자료를 이용한 냉장고 식품보관 시 플라스틱을 사용하는 경우와 요중 프탈레이트 대사체간의 관계
목적
플라스틱은 긴 탄소 사슬로 구성된 고분자 물질로 일상생활에서 식품용기, 전자레인지용 포장용기 등 다양한 곳에서 사용되고 있다. 프탈레이트는 플라스틱의 유연성을 증가시키는 가소제로 사용되는데, 이는 내분비계 장애물질로 알려져있다. 본 연구에서는 우리나라 인구를 대표하는 자료인 국민환경보건 기초조사 3기를 이용하여 가정내 냉장고 식품보관 시 플라스틱을 사용하는 경우와 요중 프탈레이트 대사체와의 연관성을 조사하였다.
방법
본 연구는 국민환경보건 기초조사 3기에서 3,333명의 19세 이상 성인을 연구 대상자로 선정하였다. (남자: 1,526명 여자: 1,807명) 요중 프탈레이트 대사체는 75th percentile값을 기준으로 요중 프탈레이트 대사체 고농도군과 저농도군으로 정의하였다. 사회인구학적 요인, 건강행태 요인, 식이요인과 플라스틱 사용, 요중 프탈레이트 대사체 농도간의 분포를 분석하기위해 χ2-test를 사용하였다. 또한 로지스틱 회귀분석을 사용하여 가정내 냉장고 식품보관 시 플라스틱을 사용하는 경우와 요중 프탈레이트 대사체 고농도군에 속할 OR값을 계산하였다.
결과
남성에서 가정내 냉장고 식품보관시 플라스틱을 사용하는 경우 플라스틱을 사용하지 않는 경우보다 요중 프탈레이트 대사체 농도가 높았다. 플라스틱을 사용하는 경우 MEHHP의 고농도군에 해당될 adjusted ORs은 1.35(95%CI: 1.05-1.72), MEOHP 1.48(95%CI: 1.16-1.88), MECPP 1.32(95%CI: 1.04-1.66), ∑DEHP 1.37(95%CI: 1.08-1.74), MnBP 1.44(95%CI: 1.13-1.84)으로 조사되었다.
결론
남성에서 가정내 냉장고 식품 보관 시 플라스틱을 사용하는 경우는 플라스틱을 사용하지 않는 경우보다 요중 프탈레이트 대사체(MEHHP, MEOHP, MECPP, ∑DEHP, MnBP) 농도가 높았다.

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Microplastic particles in human blood and their association with coagulation markers
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Scientific Reports.2024;[Epub] CrossRef

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Special Issue

Statement by the Korean Society of Occupational and Environmental Medicine on the proposed reform of working hours in South Korea: Hee-Tae Kang, Chul-Ju Kim, Dong-Wook Lee, Seung-Gwon Park, Jinwoo Lee, Kanwoo Youn, Hwan-Cheol Kim, Kyoung Sook Jeong, Hansoo Song, Sung-Kyung Kim, Sang-Baek Koh; Ann Occup Environ Med 2023;35:e17. Published online July 5, 2023; DOI: https://doi.org/10.35371/aoem.2023.35.e17

Abstract PDF Supplementary Material PubReader ePub

The current 52-hour workweek in South Korea consists of 40 hours of regular work and 12 hours of overtime. Although the average working hours in South Korea is declining, it is still 199 hours longer than the Organisation for Economic Co-operation and Development average of 1,716 hours per year. In view to this, the South Korean government has now proposed to reform the workweek, mainly intending to increase the workweek to 69 hours when the workload is heavy. This reform, by increasing the labor intensity due to long working hours, goes against the global trend of reducing work hours for a safe and healthy working environment. Long working hours can lead to increased cerebrovascular and cardiovascular diseases, industrial accidents, mental health problems, and safety accidents due to lack of concentration. In conclusion, the Korean government’s working hour reform plan can have a negative impact on workers’ health, and therefore it should be thoroughly reviewed and modified.

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Original Article

Correlation of commute time with the risk of subjective mental health problems: 6^th Korean Working Conditions Survey (KWCS): Hyo Choon Lee, Eun Hye Yang, Soonsu Shin, Seoung Ho Moon, Nan Song, Jae-Hong Ryoo; Ann Occup Environ Med 2023;35:e9. Published online May 11, 2023; DOI: https://doi.org/10.35371/aoem.2023.35.e9

Abstract Abstract in Korean PDF PubReader ePub

Background

Studies conducted so far on the link between commute time and mental health among Koreans remain insufficient. In this study, we attempted to identify the relationship between commute time and subjective mental health using the 6^th Korean Working Conditions Survey (KWCS).

Methods

Self-reported commute time was divided into four groups: ≤ 30 (group 1), 30–60 (group 2), 60–120 (group 3), and > 120 minutes (group 4). Subjective depression was defined as a score of 50 points or less on the WHO-5 well-being index. Subjective anxiety and fatigue were defined as answering ‘yes’ to the questionnaire on whether they had experienced it over the past year. The analysis of variance, t-test, and χ² test was used to analyze the differences among the characteristics of the study participants according to commute time, depression, anxiety, and fatigue. Odds ratios (ORs) and 95% confidence intervals (CIs) for depression, anxiety, and fatigue according to commute time were calculated using multivariate logistic regression models adjusted for sex, age, monthly income, occupation, company size, weekly working hours, and shift work status.

Results

Long commute times showed increased ORs and graded increasing trends for depression, anxiety, and fatigue. The ORs for depression increased significantly in group 2 (1.06 [1.01–1.11]), group 3 (1.23 [1.13–1.33]), and group 4 (1.31 [1.09–1.57]) compared to group 1 (reference). The ORs for anxiety increased significantly in group 2 (1.17 [1.06–1.29]), group 3 (1.43 [1.23–1.65]) and group 4 (1.89 [1.42–2.53]). The ORs for fatigue increased significantly in group 2 (1.09 [1.04–1.15]), group 3 (1.32 [1.21–1.43]), and group 4 (1.51 [1.25–1.82]).

Conclusions

This study highlights that the risk of depression, anxiety, and fatigue increases with commute time.

통근 시간과 주관적 정신건강문제 위험의 상관관계 : 제6차 한국근로환경조사
목적
한국인들의 통근 시간과 정신 건강의 관계에 대해 지금까지 수행된 연구는 매우 부족하다. 본 연구에서는 제6차 한국근로환경조사 자료를 이용하여 통근 시간과 주관적 정신건강의 관계를 규명하고자 하였다.
방법
자가 보고된 통근 시간은 30분 이하(1군), 30분-60분(2군), 60분-120분(3군), 120분 초과(4군)의 4개 그룹으로 분류하였다. 주관적 우울은 WHO-5 웰빙 지수 50점 이하인 경우로 정의하였다. 주관적 불안과 피로는 지난 1년간 이러한 증상을 경험한 적이 있는지에 대한 설문지에 '그렇다'고 대답한 경우로 정의하였다. 분산분석, T-검정 및 카이-제곱 검정을 사용하여 출퇴근 시간, 우울, 불안, 피로에 따른 연구 참여자들의 특성 차이를 분석하였다. 성별, 연령, 월 소득, 직업, 회사 규모, 주당 근로 시간, 교대근무 상태를 보정한 다변량 로지스틱 회귀모형을 이용하여, 통근 시간에 따른 우울, 불안, 피로에 대한 오즈비와 95% 신뢰구간을 산출하였다.
결과
긴 통근 시간은 우울, 불안, 피로에 대한 오즈비 증가 및 점진적인 상승 추세를 보여주었다. 우울에 대한 오즈비는 2군(1.06[1.01-1.11]), 3군(1.23[1.13-1.33])과 4군(1.31[1.09-1.57])에서 1군(참조군)에 비해 유의하게 증가하였다. 불안에 대한 오즈비는 2군(1.17[1.06-1.29]), 3군(1.43[1.23-1.65])과 4군(1.89[1.42-2.53])에서 유의하게 증가했다. 피로에 대한 오즈비는 2군(1.09[1.04-1.15]), 3군(1.32[1.21-1.43])과 4군(1.51[1.25-1.82])에서 유의하게 증가했다.
결론
본 연구는 출퇴근 시간이 증가함에 따라 우울증, 불안, 피로의 위험이 증가한다는 것을 강조한다.

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Study on the influence of commuting time on workers' health status and its mechanism
Yu Gan, Jing Zhang
Journal of Transport & Health.2025; 41: 102010. CrossRef

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Original Article

Relationship between shellfish consumption and urinary phthalate metabolites: Korean National Environmental Health Survey (KoNEHS) cycle 3 (2015-2017): Jisoo Kang, Seong-yong Cho, Jinseok Kim, Seongyong Yoon, Jong-min An, Gayoung Kim, Si young Kim; Ann Occup Environ Med 2023;35:e2. Published online February 6, 2023; DOI: https://doi.org/10.35371/aoem.2023.35.e2

Abstract Abstract in Korean PDF PubReader ePub

Background

Phthalates are endocrine disrupting chemicals that are widely used in the production of items of daily life such as in polyvinylchloride plastics, insecticides, and medical devices. This study aimed to determine the association between phthalate exposure and shellfish consumption using data from the Korean National Environmental Health Survey (KoNEHS) cycle 3 (2015–2017), which is a nationally representative survey.

Methods

In this study, we analyzed the KoNEHS cycle 3 data of 3,333 (1,526 men and 1,807 women) adults aged more than 19 years. Data related to the variables of sociodemographic factors, health-related behaviors, dietary factors, seafood consumption frequency, and urinary phthalate metabolites concentrations were collected. The concentrations of urinary phthalate metabolites of all the participants were divided into quartiles to define high and low concentration groups based on the 75th percentile concentration. A χ² test was conducted to analyze the distribution of independent variables. To analyze the relationship between shellfish consumption and phthalate exposure, the odds ratios (ORs) were calculated using logistic regression analysis.

Results

Total adults with shellfish consumption frequency of over once a week showed the following adjusted ORs for high concentrations of the following metabolites compared with the group that consumed shellfish once a week or less: 1.43 (95% confidence interval [CI]: 1.01–2.06) for mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP), 1.43 (95% CI: 1.01–2.03) for mono-(2-ethyl-5-carboxypentyl) phthalate (MECPP), 1.57 (95% CI: 1.10–2.24) for ∑di-2-ethylhexyl phthalate (∑DEHP), 2.01 (95% CI: 1.46–2.77) for mono-carboxyoctyl phthalate (MCOP), 1.56 (95% CI: 1.11–2.18) for mono-carboxy-isononly phthalate (MCNP), and 2.57 (95% CI: 1.85–3.56) for mono (3-carboxypropyl) phthalate (MCPP).

Conclusions

The concentrations of urinary phthalate metabolites (MEOHP, MECPP, ∑DEHP, MCOP, MCNP, and MCPP) were higher in adults with a higher frequency of shellfish consumption.

국민환경보건 기초조사 제3기(2015-2017) 자료를 이용한 조개류 섭취와 요중 프탈레이트 대사체간의 관계
목적
프탈레이트(phthalate)는 내분비계 장애물질(endocrine disrupting chemicals, EDCs)로서, 일상생활에서 가소제, 살충제, 의료기기 등으로 광범위하게 사용되고 있다. 프탈레이트는 해양 생태계에서 널리 발견되며, 조개류는 해양생태계오염의 대표적인 지표로 사용된다. 현재까지 해양 생태계의 프탈레이트의 오염에 대한 다양한 연구가 수행되고 있으나 국내에서 프탈레이트 노출과 조개류 섭취와 관련된 연구는 아직 이루어진 바가 없다. 따라서 본 연구에서는 우리나라 인구를 대표하는 자료인 국민환경보건 기초조사 제3기(2015-2017) 자료를 이용하여 요중 프탈레이트 대사체와 조개류 섭취와의 연관성을 분석하고자 했다.
방법
본 연구는 국민환경보건 기초조사 제3기(2015-2017) 자료를 이용하여 만 19세 이상 성인 3,333명(남자1,526명과 여자1,807명)을 대상으로 진행하였다. 사회인구학적 변수 및 건강행태 관련 변수 및 식이 요인과 해산물의 섭취 빈도, 요중 프탈레이트 대사체 농도를 변수로 두어 각 변수 간의 분포 차이를 분석하였다. 로지스틱 회귀분석을 사용하여 조개류 섭취빈도에 따라 요중 프탈레이트 대사체 고농도군에 속할 OR값을 계산하였다.
결과
조개류 섭취의 경우 주 1회 초과군에서 MEOHP의 고농도군에 해당될 adjusted ORs은 1.43(95%CI: 1.01-2.06), MECPP 1.43(95%CI: 1.01-2.03), ∑DEHP 1.57(95%CI: 1.10-2.24), MCOP 2.01(95%CI: 1.46-2.77), MCNP 1.56(95%CI: 1.11-2.18), MCPP 2.57(95%CI: 1.85-3.56)으로 조사되었다.
결론
성인에서 조개류 섭취 빈도가 많을수록 요중 프탈레이트 대사체(MEOHP, MECPP, ∑DEHP, MCOP, MCNP, MCPP) 농도가 높았다.

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Filling gaps in population estimates of phthalate exposure globally: A systematic review and meta-analysis of international biomonitoring data
Jonathan M. Acevedo, Linda G. Kahn, Kristyn A. Pierce, Vittorio Albergamo, Anna Carrasco, Robbie S.J. Manuel, Marissa Singer Rosenberg, Leonardo Trasande
International Journal of Hygiene and Environmental Health.2025; 265: 114539. CrossRef
Urinary phthalate metabolites and heart rate variability: A panel study
Ziqian Zhang, Miao Liu, Lei Zhao, Linlin Liu, Wenting Guo, Jie Yu, Huihua Yang, Xuefeng Lai, Xiaomin Zhang, Liangle Yang
Environmental Pollution.2023; 330: 121760. CrossRef
Microplastics induced inflammation and apoptosis via ferroptosis and the NF-κB pathway in carp
Tianchao Xu, Jie Cui, Ran Xu, Jingwen Cao, Meng-yao Guo
Aquatic Toxicology.2023; 262: 106659. CrossRef
Relationship between the use of plastics in refrigerator food storage and urine phthalate metabolites: the Korean National Environmental Health Survey (KoNEHS) cycle 3
Jisoo Kang, Seong-yong Cho, Seongyong Yoon
Annals of Occupational and Environmental Medicine.2023;[Epub] CrossRef

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Original Article

Association between presenteeism and mental health among logistic center workers: Hyoungseob Yoo, Ji-hun Song, Hyoung-Ryoul Kim; Ann Occup Environ Med 2022;34:e39. Published online November 17, 2022; DOI: https://doi.org/10.35371/aoem.2022.34.e39

Abstract Abstract in Korean PDF Supplementary Material PubReader ePub

Background

Workers in logistics centers are always pressed for time to collect and pack products. They also participate in high-intensity manual labor in which various musculoskeletal hazards exist. In the case of logistic center labor, it is estimated that there is a high risk of presenteeism due to the above characteristics which can cause deterioration of workers’ mental health. However, there is insufficient research on this topic.

Methods

Workers in a logistic center were surveyed using an Internet questionnaire. The survey items included demographic characteristics, labor intensity and work-related factors, and mental health aspects such as depression and anxiety. The survey was conducted for about a month from July 26, 2021 and a total of 353 people were analyzed. Through the χ² test and t-test, the characteristics of workers who experienced presenteeism were examined and the prevalence ratios (PRs) of depression and anxiety experiences were calculated by multivariable Poisson regression. Afterwards, stratification analysis considering gender, the type of contract, and labor intensity was implemented.

Results

In the group that experienced presenteeism, the number of working days per week was higher and fixed-term workers, high labor intensity, and sleep deprivation were more common. In the multi-Poisson regression analysis conducted by adjusting the demographic characteristics, working hours, and work-related factors, the PRs of depression and anxiety were 1.98 (95% confidence interval: 1.24–3.18) and 1.81 (1.22–2.68), respectively. In particular, the p-value for interactions was significant when stratified with the type of contract.

Conclusions

As a result of the study, presenteeism and mental health were associated in logistic center workers. To prevent mental health issues of logistic center workers, management of presenteeism is necessary and a prospective study is needed.

일개 물류센터 노동자에서 프리젠티즘과 정신건강 사이의 상관성
목적
코로나19 이후 물류 산업 전반의 수요가 증가하기 시작하였다. 물류센터 노동은 상품을 입고하고 주문된 상품을 제한 시간 내에 집품, 포장해야하는 업무로 항상 시간에 쫓기며, 다양한 근골격계 유해인자들이 상존하는 고강도의 육체 노동이 특징적이다. 물류센터 노동의 경우 위와 같은 특징으로 프리젠티즘이 발생할 위험이 높을 것으로 추정되며, 이후 근로자의 정신건강의 악화를 가져올 것으로 추정이 되나, 이에 대한 연구는 드물다. 이에 물류산업 노동자에서의 프리젠티즘과 정신건강 사이의 상관성을 보고자 본 연구를 시행하였다.
방법
일개 물류센터 종사자들을 대상으로 온라인 설문조사 링크를 통해 2021.7.26-2021.8.27. 동안 설문조사를 실시하였다. 중복을 제외하여 총 353명의 물류센터 종사자들이 최종 연구대상자로 선정되었다. 인구학적 특징, 고용 형태 및 업무 내용, 노동 시간 및 강도, 교대 근무, 질병 경험, 수면장애, 우울 등 건강 실태 등에 대해 조사하였다. Chi-square test, T-test를 통해 프리젠티즘 여부에 따른 근로 관련 특징을 살펴보았고, multivariable Poisson regression을 통해 프리젠티즘 유무에 따른 우울, 불안의 Prevalence ratio(PR)을 산출하였고, 성별, 근무 시간, 노동 강도에 따른 층화 분석을 시행하였다. 통계 프로그램은 SAS 9.4(SAS Institute, Cary, NC, USA)를 사용하였다.
결과
프리젠티즘이 확인되는 군에서 주당 근로일수가 길고, 계약직이 많으며, 노동 강도가 높고, 수면시간이 적은 것으로 확인된다. 나이, 성별, 계약조건, 주당 근로시간, 근무 형태, 노동 강도를 보정하여 multivariable Poission regression을 통해 분석한 결과 프리젠티즘이 있는 군에서 우울과 불안이 발생할 PR 값이 1.98(95%CI 1.24-3.18), 불안이 발생할 PR 값이 1.81(95%CI 1.22-2.68)로 나타났다. 층화 분석 시 고용 형태가 프리젠티즘과 우울과의 관계에서 유의한 상호작용이 확인되었다.
결론
본 연구 결과 물류센터 노동자에서 프리젠티즘과 정신건강 사이의 상관관계가 확인되었다. 물류센터 노동자의 정신건강을 예방하기 위해 프리젠티즘을 유발할 노동 강도 및 노동 환경을 개선해야하며, 아파도 일을 쉴 수 있도록 상병수당, 유급휴가 등의 정책 등이 마련되어야 할 것을 보여준다.

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Original Article

Association between working evening shifts and mental health among Korean employees: data from the 5th Korean Working Conditions Survey: Seongchan Heo, Yunrae Cho, Man-Joong Jeon; Ann Occup Environ Med 2022;34:e36. Published online November 8, 2022; DOI: https://doi.org/10.35371/aoem.2022.34.e36

Abstract Abstract in Korean PDF PubReader ePub

Background

Many studies have been conducted to investigate the harmful effect of shift work on physical and mental health. Although, by definition, “working evening shift” is included in the scope of shift work, most related studies conducted thus far have focused on working night shifts, overtime work, or different types of shift work, with little research effort dedicated to “working evening shifts.” Therefore, to fill this research gap, we investigated the effect of working evening shifts on workers’ mental health.

Methods

The participants of this study were 16,692 employees of the 50,205 that participated in the 5^th wave of the Korean Working Conditions Survey. We performed χ² test and logistic regression analysis to analyze the effects of independent variables on health problems and calculated odds ratios and 95% confidence intervals (CIs).

Results

In the logistic regression analysis adjusted for sociodemographic characteristics, health-related factors, and work-related characteristics, employees who worked evening shifts showed higher levels of depression and anxiety compared to those that did not. In particular, the adjusted odds ratios of the group working evening shifts between one and nine times a month were the highest with 2.723 (95% CI: 2.014–3.682) for depression, 3.294 (95% CI: 2.547–4.259) for anxiety.

Conclusions

The results of our study suggest that working evening shifts has a negative effect on employees’ mental health. This trend decreased with an increase in the monthly frequency of evening work.

한국 근로자의 저녁 근무와 정신건강과의 관련성: 제 5차 한국 근로환경조사를 이용하여
목적
교대근무가 신체 및 정신건강에 미치는 유해한 영향에 대해서는 많은 연구가 이루어져왔다. 하지만 정의 상 저녁근무 또한 교대근무에 포함됨에도 불구하고 기존의 연구는 주로 야간근무 및 장시간 근무 또는 교대근무의 형태에 대해서 다뤘을 뿐 저녁시간 근무에 대한 검토는 거의 없었다. 따라서 본 연구에서는 저녁시간 근무가 근로자의 정신건강에 미치는 영향에 대해 알아보고자 하였다.
방법
이 연구는 제 5차 한국 근로환경조사에 포함된 50,205명의 참가자 중 임금 근로자 16,692명을 대상으로 진행되었다. 카이제곱 검정을 사용하여 대상자들의 각 특성과 건강문제와의 관련성을 파악하고, 이러한 결과를 기반으로 로지스틱 회귀분석을 시행하여 건강문제에 대한 독립변인의 영향력을 파악하고 교차비 (OR)와 95% 신뢰 구간 (CI)을 산출하였다.
결과
사회인구학적 특성, 건강관련 요인, 직업별 특성에 따라 조정된 로지스틱 회귀 분석에서 저녁 근무를 수행하는 근로자는 그렇지 않은 근로자에 비해 높은 수준의 우울, 불안, 피로감을 보였다. 특히 저녁 근무를 한 달에 1회이상 9회 이하 수행하는 군의 조정된 교차비는 우울 2.723 (95% confidence interval (CI): 2.014-3.682), 불안 3.294 (95% CI:2.547-4.259)으로 가장 높은 수치를 나타냈다.
결론
우리 연구의 결과는 저녁시간 근무가 근로자의 정신건강에 부정적 영향을 미침을 나타낸다. 이러한 경향은 한 달에 수행하는 저녁근무 횟수가 증가할수록 감소하는 결과를 보였다.

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Original Article

Analysis of self-reported mental health problems among the self-employed compared with paid workers in the Republic of Korea: Yongho Lee, Junhyeong Lee, Ui-Jin Kim, Eunseun Han, Seunghon Ham, Won-Jun Choi, Seong-Kyu Kang, Wanhyung Lee; Ann Occup Environ Med 2022;34:e8. Published online April 8, 2022; DOI: https://doi.org/10.35371/aoem.2022.34.e8

Abstract Abstract in Korean PDF PubReader ePub

Background

As self-employed workers are vulnerable to health problems, this study aimed to analyze mental health problems and sleep disturbances among self-employed workers compared with paid workers in Korea.

Methods

A total of 34,750 workers (23,938 paid workers and 10,812 self-employed workers) were analyzed from the fifth Korean Working Condition Survey, which included 50,205 households collected by stratified sampling in 2017. To compare mental health problems and sleep disturbance among self-employed workers and paid workers, multivariate logistic regression analyses were performed.

Results

The odds ratio in self-employed workers compared with paid workers was 1.25 (95% confidence interval [CI]: 1.09–1.42) for anxiety, 1.11 (95% CI: 1.04–1.17) for overall fatigue, 1.11 (95% CI: 1.04–1.20) for difficulty falling asleep, 1.10 (95% CI: 1.02–1.18) for difficulty maintaining sleep and 1.24 (95% CI: 1.16–1.32) for extreme fatigue after waking up.

Conclusions

Self-employed workers in Korea have a higher risk of self-reported mental health problems and sleep disturbances than paid workers. Further studies with a longitudinal design and structured evaluation are required to investigate the causal relationship between health problems and self-employment.

한국 자영업자의 주관적 정신건강 문제 : 제 5차 근로환경조사를 이용하여
목적
자영업자는 고용, 사업체 운영 등에 대한 스트레스를 받고 있으며 자신들의 건강관리에 취약한 것으로 여겨지고 있다. 이 연구는 자영업자들에게 초점을 맞춰 유급근로자들과 비교하여 정신건강 문제와 수면 장애를 분석하는 것을 목표로 하였다.
방법
이 연구는 한국의 5차 근로환경조사 데이터를 바탕으로 23,938명의 유급근로자와 10,812명의 자영업자들을 선택하여 분석을 수행하였다. 정신건강 문제는 ‘우울감’, ‘불안감’, ‘전신 피로’에 대한 설문과 수면 장애는 ‘잠들기가 어려움’, ‘자는 동안 반복적으로 깨어남’, ‘기진맥진함 또는 극도의 피곤함을 느끼며 깨어남’ 설문의 답변을 이용하였다. 자영업자의 정신건강 문제와 수면 장애를 분석하기 위해 다변량 로지스틱 회귀 분석을 시행하였다.
결과
자영업자에서의 ‘불안감’에 대한 보정된 오즈비는 1.25 (95% CI=1.09-1.42), ‘전신피로’는 1.11 (95% CI=1.04-1.17), ‘잠들기가 어려움’은 1.11 (95% CI=1.04-1.20), ‘자는 동안 반복적으로 깨어남’은 1.10 (95% CI=1.02-1.18) 그리고 ‘기진맥진함 또는 극도의 피곤함을 느끼며 깨어남’은 1.24 (95% CI=1.16-1.32)이었다.
결론
본 연구는 유급근로자에 비해 자영업자들의 정신건강 문제와 수면 장애의 위험성이 높은 것을 확인할 수 있었다. 자영업자들의 건강 보호와 증진을 위해 구조화된 설문, 전향적 연구 등의 추가적인 연구와 사회의 관심이 필요하다.

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Original Article

Association between urinary trans,trans-muconic acid and diabetes: a cross-sectional analysis of data from Korean National Environmental Health Survey (KoNEHS) cycle 3 (2015–2017): Eun Hye Yang, Do Jin Nam, Hyo Choon Lee, Soon Su Shin, Jae-Hong Ryoo; Ann Occup Environ Med 2021;33:e35. Published online December 6, 2021; DOI: https://doi.org/10.35371/aoem.2021.33.e35

Abstract Abstract in Korean PDF Supplementary Material PubReader ePub

Background

Benzene is a ubiquitous air pollutant that is well known to cause hematopoietic effects in humans including leukemia. Recently, several studies have discussed its non-carcinogenic effects such as diabetes. This study aimed to investigate the association between diabetes and urinary trans,trans-muconic acid (t,t-MA), one of benzene metabolite, using adult data from Korean National Environmental Health Survey (KoNEHS) cycle 3 (2015–2017).

Methods

This study analyzed 3,777 adults (1,645 men and 2,132 women) from the KoNEHS cycle 3 (2015–2017). The distribution and fraction of each independent variable were presented separately according to the urinary benzene metabolite levels (t,t-MA quartiles) and diabetes to determine the general characteristics of the subjects. Odds ratios (ORs) were calculated using logistic regression after stratification by gender and smoking status to identify the association between urinary t,t-MA and diabetes.

Results

Compared with the first quartile (reference), the risk of diabetes significantly increased above the 4th (1.834 [1.107–3.039]) quartile in men and above the 3rd (1.826 [1.095–3.044]) and 4th (2.243 [1.332–3.776]) quartiles in women after adjustment. Stratified analysis based on smoking revealed that the ORs for the 3rd (1.847 [1.146–2.976]) and 4th (1.862 [1.136–3.052]) quartiles in non-smokers and those for the 2nd (1.721 [1.046–2.832]), 3rd (1.797 [1.059–3.050]), and 4th (2.546 [1.509–4.293]) quartiles in smokers were significantly higher.

Conclusions

We confirmed that urinary t,t-MA is significantly associated with diabetes regardless of gender and smoking status. And further studies are necessary to access the clinical impacts of this findings.

소변 내 뮤콘산 농도와 당뇨의 연관성 : 제 3기 국민환경보건기초조사(2015-2017)를 이용한 단면연구
목적
본 연구는 일반인구집단을 대상으로 환경적인 벤젠 노출과 당뇨와의 연관성을 알아보기 위해 제 3기 국민환경보건기초조사 성인 데이터를 이용하여 벤젠 대사물질 중 하나인 소변 내 뮤콘산의 농도와 당뇨와의 관계를 알아보았다.
방법
제 3기 국민환경보건기초조사 성인 3,777명(남성 1,645명, 여성 2,132명)을 분석하였다. 대상자의 일반적인 특성을 확인하기 위해 각 독립변수의 분포 및 분율을 소변 내 뮤콘산 농도(사분위수)와 당뇨유무에 따라 제시하였다. 소변 내 뮤콘산 농도와 당뇨와의 연관성을 알아보기 위해 성별과 흡연으로 각각 층화 후 로지스틱 회귀분석을 사용하여 오즈비를 구하였다.
결과
보정 후, 남성은 제 4사분위 구간 1.834(1.106-3.039), 여성은 제 3사분위 구간 1.825(1.095-3.044), 제 4사분위 구간 2.241(1.331-3.773)에서 오즈비가 유의하게 증가하였으며, 소변 내 뮤콘산 농도가 증가할수록 당뇨위험이 증가하는 경향성을 보였다. 흡연으로 층화 후 분석한 결과 비흡연자의 경우 제 3분위수 1.847(1.146-2.976), 제 4분위수 1.861(1.135-3.050), 흡연자의 경우 제 2분위수 1.721(1.046-2.832), 제 3분위수 1.796(1.058-3.048), 제 4분위수 2.544(1.509-4.291)가 보정 후 통계적으로 유의하였다.
결론
본 연구에서 벤젠 대사체인 소변 내 뮤콘산 농도가 성별과 흡연 상태에 관계없이 당뇨와 유의하게 관련이 있다는 것을 확인하였으며, 추후 환경적인 벤젠 노출에 대한 당뇨 연관성에 대하여 연구가 필요하다.

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Seong-Uk Baek, Minseo Choi, Yu-Min Lee, Jin-Ha Yoon
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International Journal of Environmental Health Research.2024; 34(12): 4202. CrossRef
Association of Urinary Benzene Metabolite and the Ratio of Triglycerides to High-Density Lipoprotein Cholesterol: A Cross-Sectional Study Using the Korean National Environmental Health Survey (2018–2020)
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Hyunji Ju, Seungho Lee, Jae-Hee Min, Yong-Sik Hwang, Young-Seoub Hong
Journal of Environmental Health Sciences.2023; 49(6): 344. CrossRef
Association of metabolites of benzene and toluene with lipid profiles in Korean adults: Korean National Environmental Health Survey (2015–2017)
Soon Su Shin, Eun Hye Yang, Hyo Choon Lee, Seong Ho Moon, Jae-Hong Ryoo
BMC Public Health.2022;[Epub] CrossRef

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Original Article

Association between physical hazardous agent exposure and mental health in the Korean working population: the 5th Korean Working Conditions Survey: Daeil Kwon, Kyeongmin Kwak, Kiook Baek, Youngchan Chi, Sewhan Na, Jong-Tae Park; Ann Occup Environ Med 2021;33:e33. Published online November 8, 2021; DOI: https://doi.org/10.35371/aoem.2021.33.e33

Abstract Abstract in Korean PDF Supplementary Material PubReader ePub

Background

Mental health problems are emerging issues in occupational safety and health, whereas the findings on the relationship between physical hazards and mental health are not consistent. The aim of our study was to investigate the association between physical hazard exposure and mental health outcomes including depression and anxiety.

Methods

We included 48,476 participants from the fifth Korean Working Conditions Survey (KWCS) in this study. The χ² test and logistic regression analyses were conducted to assess the association between physical hazard exposures and mental health. All statistical analyses were performed sex-specifically.

Results

In logistic regression analysis, the odds ratios (ORs) of depression were significantly increased in male workers who were exposed to vibration (severe OR: 1.54, 95% confidence interval [CI]: 1.21–1.95) and noise (severe OR: 1.93, 95% CI: 1.49–2.48) whereas the ORs of depression were not significant in female workers from vibration (severe OR: 0.86, 95% CI: 0.50–1.38) or noise exposure (severe OR: 1.39, 95% CI: 0.84–2.17). The ORs of anxiety were significantly increased in male workers with vibration (severe OR: 1.76, 95% CI: 1.43–2.15) and noise exposure (severe OR: 2.12, 95% CI: 1.69–2.63) whereas the OR between vibration and anxiety (severe OR: 1.45, 95% CI: 0.91–2.21) was not significant in female workers. High or low temperature exposure had significant associations with depression and anxiety in both male and female subjects.

Conclusions

Results of our study suggest that physical hazard exposures may be associated with increased risk of mental health problems including depression and anxiety. These associations are more prominent in male workers in comparison with female workers.

한국 노동인구에서 물리적 위험요인 노출과 정신건강의 연관: 제5차 근로환경조사 자료
목적
산업보건에서 정신건강 문제가 새롭게 대두되고 있으나 물리적 위험요인과 정신건강의 관련성에 대한 일치된 결과는 없었다. 본 연구는 물리적 위험요인 노출과 우울 및 불안의 상관관계를 밝히는 데에 목적을 두고 있다.
방법
본 연구는 제5차 근로환경조사에서 추출한 48,476명을 대상으로 수행하였다. 카이제곱 검정과 로지스틱 회귀분석을 수행하여 물리적 유해인자 노출과 정신건강의 상관관계를 평가하였다. 모든 통계 분석은 성별에 따라 각각 이루어졌다.
결과
로지스틱 회귀분석에서 우울의 오즈비(odds ratio; OR)는 진동(심한 노출 OR: 1.54, 95% 신뢰구간 [confidence interval; CI]: 1.21, 1.95) 및 소음(심한 노출 OR: 1.93, 95% CI: 1.49, 2.48) 노출이 있는 남성 근로자에서 통계적으로 유의하게 증가한 반면 여성 근로자에서는 진동(심한 노출 OR: 0.86, 95% CI: 0.50, 1.38) 및 소음(심한 노출 OR: 1.39, 95% CI: 0.84, 2.17) 모두 통계적 유의성이 나타나지 않았다. 불안의 오즈비는 남성 근로자에서 진동(심한 노출 OR: 1.76, 95% CI: 1.43, 2.15) 및 소음(심한 노출 OR: 2.12, 95% CI: 1.69, 2.63)이 있는 경우 통계적으로 유의한 상승을 보였으나 여성 근로자에서 진동과 불안 간의 오즈비(심한 노출 OR: 1.45, 95% CI: 0.91, 2.21)는 유의하지 않았다. 고온 및 저온 노출의 경우 남녀 모두에서 우울, 불안과 유의한 상관관계가 확인되었다.
결론
본 연구의 결과는 물리적 유해인자 노출이 우울, 불안 등의 정신건강 문제 위험의 증가와 관련이 될 수 있음을 시사한다. 이러한 관계는 여성 근로자보다 남성 근로자에서 더 두드러지게 나타났다.

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Case Report

Mental health impact on a humidifier disinfectant disaster victim: a case report: Ye-Sung Lee, Min-Woo Nam, Hyun-Il Kim, Hyeong-Cheol Kim, Eun-Chan Mun, So-Young Park; Ann Occup Environ Med 2020;32:e15. Published online June 1, 2020; DOI: https://doi.org/10.35371/aoem.2020.32.e15

Abstract PDF PubReader ePub

In Korea, the cause of lung disease of unknown origin was identified as humidifier disinfectants in November 2011. In February 2017, the ‘Special Act on Remedy for Damage Caused by Humidifier Disinfectants’ was promulgated. Even though emotional and mental injuries caused by humidifier disinfectants have been reported, the focus of the special act has been on physical injury only, and criteria for recognizing mental health impact have not been considered. This case considers emotional and mental injury caused by humidifier disinfectants. After a humidifier disinfectant was used from January 2005 to April 2006, the patient's son aged 20 months was hospitalized with respiratory symptoms, and he died within two weeks. Also, the patient was hospitalized for a month with the same symptoms, and then she led a normal life with no symptoms. After both mother and son were diagnosed with definite (level 1) humidifier disinfectant lung injury (HDLI) in 2017, she took to drinking alcohol because of extreme guilt over her son's death. In March 2018 she died from acute liver failure due to alcohol use disorder. The patient's death was caused by continuous alcoholism, due to emotional and mental trauma caused by her son's death after HDLI was revealed as the cause. The government did not acknowledge her death was due to humidifier disinfectants, but the company that sold the humidifier disinfectants recognized her as a victim and compensated the family of the victim. There are still lots of psychological responses among humidifier disinfectant disaster victims. Mental health impact on humidifier disinfectant victims should be considered more carefully, and institutional improvements should be made into establish psychological interventions and measures.

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Research Article

Relationship between seafood consumption and bisphenol A exposure: the Second Korean National Environmental Health Survey (KoNEHS 2012–2014): Yeji Kim, Minkyu Park, Do Jin Nam, Eun Hye Yang, Jae-Hong Ryoo; Ann Occup Environ Med 2020;32:e10. Published online March 5, 2020; DOI: https://doi.org/10.35371/aoem.2020.32.e10

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Background

This study aimed to identify the relationship between exposure to bisphenol A (BPA) and seafood consumption using a nationally representative data of the general Korean population.

Methods

This study was conducted on 5,402 adults aged 19 years and older (2,488 men, 2,914 women) based on the second Korean National Environmental Health Survey (2012–2014). We stratified the data according to gender and analyzed urinary BPA concentrations in terms of sociodemographic characteristics, health behavior, dietary factor, and seafood consumption. In the high and low BPA exposure groups, the odds ratios (ORs) were calculated using logistic regression analysis according to the top 75th percentile concentration.

Results

In men, large fish and tuna and other seafood categories had significantly higher ORs before and after adjustment in the group who consumed seafood more than once a week than in the group who rarely consumed seafood, with an adjusted value of 1.97 (95% confidence interval [CI]: 1.12–3.48) and 1.74 (95% CI: 1.10–2.75), respectively. In the shellfish category, the unadjusted OR was 1.61 (95% CI: 1.00–2.59), which was significantly higher in the group who consumed seafood more than once a week than in the group who rarely consumed seafood. However, the OR after adjusting for the variables was not statistically significant. In women, the frequency of seafood consumption and the concentration of urinary BPA were not significantly associated.

Conclusions

BPA concentration was higher in men who frequently consumed large fish and tuna, shellfish and other seafood in this study.

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Occurrence and profiles of bisphenol A and its analogues in marine shrimps from Tianjin and their implications for human exposure
Siyu Yang, Weiyi Jin, Chunhai Gao, Yeqing Jia, Xinghua Li, Jianping Li, Yi Zhang
Journal of Food Composition and Analysis.2025; 137: 106852. CrossRef
Bisphenol A Biomonitoring after Sealant Placement: A Prospective Cohort Study in Schoolchildren
V. Supornsilchai, L. Sutthirat, I. Kaewkamnerdpong, C. Jantarat, N. Sakorn, W. Nosoongnoen, T. Chaiboonyarak, L. Samaranayake, S. Wacharasindhu, T. Porntaveetus
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Relationship between the use of hair products and urine benzophenone-3: the Korean National Environmental Health Survey (KoNEHS) cycle 4
Siyoung Kim, Seong-yong Cho, Seongyong Yoon, Daehwan Kim, Hyun Woo Park, Jisoo Kang, Sung Woo Huh
Annals of Occupational and Environmental Medicine.2024;[Epub] CrossRef
Relationship between shellfish consumption and urinary phthalate metabolites: Korean National Environmental Health Survey (KoNEHS) cycle 3 (2015-2017)
Jisoo Kang, Seong-yong Cho, Jinseok Kim, Seongyong Yoon, Jong-min An, Gayoung Kim, Si young Kim
Annals of Occupational and Environmental Medicine.2023;[Epub] CrossRef
Endocrine disrupting chemicals: A promoter of non-alcoholic fatty liver disease
Yajie Chen, Yang Wang, Ziqiang Cui, Wenpeng Liu, Baowang Liu, Qiang Zeng, Xin Zhao, Jian Dou, Jinglin Cao
Frontiers in Public Health.2023;[Epub] CrossRef
Relationship between the use of plastics in refrigerator food storage and urine phthalate metabolites: the Korean National Environmental Health Survey (KoNEHS) cycle 3
Jisoo Kang, Seong-yong Cho, Seongyong Yoon
Annals of Occupational and Environmental Medicine.2023;[Epub] CrossRef
Bisphenol S Impairs Oestradiol Secretion during In Vitro Basal Folliculogenesis in a Mono-Ovulatory Species Model
Claire Vignault, Véronique Cadoret, Peggy Jarrier-Gaillard, Pascal Papillier, Ophélie Téteau, Alice Desmarchais, Svetlana Uzbekova, Aurélien Binet, Fabrice Guérif, Sebastien Elis, Virginie Maillard
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Cross-Sectional Association of Urinary Bisphenol A and Vaccine-Induced Immunity against Hepatitis B Virus: Data from the 2003–2014 National Health and Nutrition Examination Survey
Jun Young Uhm, Hyoung-Ryoul Kim
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Research Article

The exposure level of environmental harmful substances related to the secondhand smoke in Korean non-smoker adults: data from the second Korean National Environmental Health Survey (KoNEHS 2012–2014): a cross-sectional study: Sang Woo Kim, Sung Won Jung, Jae-Gwang Lee, Jae Han Joo, June-Hee Lee, Kyung-Jae Lee; Ann Occup Environ Med 2019;31:e30. Published online October 15, 2019; DOI: https://doi.org/10.35371/aoem.2019.31.e30

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Background

We aimed to find the exposure level of environmental harmful substances related to the secondhand smoke (SHS) using a nationally representative data of the general population in Korea.

Methods

Total 3,533 people were included in this study. We compared the proportion exceeding 95 percentile of the concentrations of harmful substances by sex according to SHS exposure. 16 kinds of substances related to tobacco smoke were analyzed including heavy metals, polycyclic aromatic hydrocarbons, volatile organic compounds, and environmental phenol. For 16 kinds of substances, the odds ratios (ORs) for exceeding 95 percentile of each harmful substance were calculated by multiple logistic regression according to SHS exposure. Age, education level, marital status, body mass index, drinking, and exercise were adjusted as covariates. Cotinine level was additionally adjusted to increase reliability of our results.

Results

SHS was associated with high exposure of mercury, methylhippuric acid, fluorene, and cotinine. In women, SHS was associated with mercury, methylhippuric acid, fluorene, and cotinine, while in men, it was associated with cotinine. After adjusting covariates, ORs of blood mercury, methylhippuric acid and hydroxyfluorene in the exposed gruop were greater than that in the non-exposed group. Especially in female, methylhippuric acid and hydroxyfluorene showed consistent result.

Conclusions

Our finding demonstrates that SHS is related to several harmful substances. Therefore, to reduce the health effects of SHS, it is necessary to educate and publicize the risk of SHS. Future studies are necessary to more accurately analyze factors such as exposure frequency, time, and pathway of SHS.

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Sleep duration mediates the association between heavy metals and the prevalence of depression: an integrated approach from the NHANES (2005–2020)
Qingsong Mao, Xiaoyi Zhu, Yuzhe Kong
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Joint association of heavy metals and polycyclic aromatic hydrocarbons exposure with depression in adults
Miaomiao Jiang, Hui Zhao
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The Exposure Status of Environmental Chemicals in South Korea: The Korean National Environmental Health Survey 2018–2020
Sooyeon Hong, Ok-Jin Kim, Sun Kyoung Jung, Hye Li Jeon, Suejin Kim, Jihyon Kil
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Environmental tobacco smoke exposure is associated with increased levels of metals in children’s saliva
Lisa M. Gatzke-Kopp, Jenna L. Riis, Hedyeh Ahmadi, Hillary L. Piccerillo, Douglas A. Granger, Clancy B. Blair, Elizabeth A. Thomas
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Clinical Hypertension.2021;[Epub] CrossRef

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Research Article

The association between dependent self-employment and self-reported depression/anxiety and sleep disorder in South Korea: Guyeon Won, Jae Bum Park, Kyung-Jong Lee, Ryun Ha, Seungho Lee, Inchul Jeong; Ann Occup Environ Med 2019;31:e13. Published online July 29, 2019; DOI: https://doi.org/10.35371/aoem.2019.31.e13

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Background

Dependent self-employment is precarious employment, which can be vulnerable to mental health problems. This study aimed to investigate the association of dependent self-employment with depression, anxiety, and sleep disorder in South Korea.

Methods

This study used data from the Fourth Korean Working Conditions Survey and included 32,691 paid workers. Dependent self-employment and self-reported depression/anxiety, and sleep disorder were investigated using a questionnaire. Logistic regression analysis was performed to investigate the association between dependent self-employment and mental health problems.

Results

Of the 32,691 paid workers, 2,371 (7.3%) were dependent self-employed workers. The odds ratio (OR) of dependent self-employment for self-reported depression/anxiety was 1.78 (95% confidence interval [CI]: 1.29–2.45) and the OR of dependent self-employment for self-reported sleep disorder was 1.26 (95% CI: 1.01–1.59) compared to other paid workers.

Conclusions

Dependent self-employment is related to an increased risk of self-reported depression/anxiety and sleep disorder in South Korea.

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Hao Wen, Yun Gao
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Association between precarious employment and the onset of depressive symptoms in men and women: a 13-year longitudinal analysis in Korea (2009–2022)
Seong-Uk Baek, Jong-Uk Won, Yu-Min Lee, Jin-Ha Yoon
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Gender differences in the prevalence of and trends in sleep patterns and prescription medications for insomnia among US adults, 2005 to 2018
Lei Zuo, Xia Chen, Mingliang Liu, Shan Dong, Li Chen, Guangzhen Li, Zhiyu Zhai, Long Zhou, Haiyan Chen, Yuan Wei, Liping Shi, Guang Hao
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Research Article

The role of customer service manual on workplace emotional burden in nationwide cross sectional study: Sehyun Yun, Sung-Shil Lim, Jihyun Kim, Young-Kwang Kim, Jong-Uk Won, Jin-Ha Yoon; Ann Occup Environ Med 2019;31:5. Published online February 12, 2019; DOI: https://doi.org/10.1186/s40557-019-0285-9

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Background

We aim to discuss the overall effect of customer service manual (CSM) on service industry workers using Korean Working Condition Survey.

Methods

Out of 50,007 total survey participants, 11,946 customer service workers were included in the current study (5613 men, 6333 women). Answers to survey questions were used to define the use of CSM, emotional burden, emotional dissonance, engaging angry customers and other covariates. Emotional burden included either depressive event or stress level. Odds ratio (OR) with 95% confidence interval (95% CI) of experiencing emotional burden was calculated by logistic regression model. Interaction effect between CSM and engaging angry customer on emotional burden was also estimated.

Results

Out of 11,946 subjects, total of 3279 (27.4%) have experienced emotional burden. OR (95% CI) of experiencing emotional burden was 1.40 (1.19–1.64) in men and 1.25 (1.09–1.44) in women. There was gender difference in interaction effect between the use of CSM and engaging angry customers. In men, OR (95% CI) was 3.16 (1.38–7.23) with additive effect when always engaging angry customers with CSM compared to rarely engaging without CSM, while in women OR (95% CI) was 8.85 (3.96–19.75) with synergistic effect. Moreover, the risk of depressive event increased only in women with OR (95% CI) 2.22 (1.42–3.48).

Conclusions

Our current study highlighted association between emotional burden and CSM in both men and women service workers. Furthermore, women were affected more severely by CSM. The results from current study suggest that CSM should be changed appropriately to benefit workers.

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Eliana Ruetti, Sofia Pirotti
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The Burnout Syndrome among Women Working in the Retail Network in Associations with Psychosocial Work Environment Factors
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International Journal of Environmental Research and Public Health.2021; 18(11): 5603. CrossRef
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Irregular Work Hours and the Risk of Sleep Disturbance Among Korean Service Workers Required to Suppress Emotion
Sehyun Yun, Minsuk Kim, Won-Tae Lee, Jin-Ha Yoon, Jong-Uk Won
International Journal of Environmental Research and Public Health.2021; 18(4): 1517. CrossRef
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Hae-ryoung Chun, Inhyung Cho, Youngeun Choi, Sung-il Cho
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Combined effect of emotional labor and job insecurity on sleep disturbance among customer service workers
Sunguk Choi, Kwon Ko, Jae Bum Park, Kyung-Jong Lee, Seungho Lee, Inchul Jeong
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Research Article

Relationship between personal care products usage and triclosan exposure: the second Korean National Environmental Health Survey (KoNEHS 2012–2014): Minkyu Park, Seyoung Kim, Yeji Kim, Do Jin Nam, Jae-Hong Ryoo, Sinye Lim; Ann Occup Environ Med 2019;31:2. Published online January 28, 2019; DOI: https://doi.org/10.1186/s40557-019-0283-y

Abstract PDF Supplementary Material PubReader ePub

Background

We aimed to find the exposure level of triclosan (TCS), a known endocrine disruptor, related to the use of personal care products using a nationally representative data of the general population in Korea.

Methods

This study included data of 6288 adults aged 19 years and older (2692 men, 3596 women), based on the Second Korean National Environmental Health Survey (KoNEHS 2012–2014). The data were divided according to gender. The frequency and proportion of each variable were determined by dividing participants into two groups based on the top 75th percentile concentration of urinary TCS (male: 1.096 μg/g creatinine, female: 1.329 μg/g creatinine). Odds ratios (ORs) were calculated using logistic regression analysis for the high TCS exposure and low TCS exposure groups.

Results

Overall, the proportion of participants using personal care products was higher in women than in men. There was a significantly higher proportion of participants in the high TCS exposure group with younger age, higher education and income levels and with more frequent use of fragrance products, hair care products, body cleansers, cosmetics, and antimicrobial agents. In both men and women, ORs tended to increase with increased frequency of use of hair care products, body cleansers, and cosmetics before and after adjustment.

Conclusions

Our findings demonstrate that as the frequency of use of personal care products increases, urine TCS concentration increases. Because TCS is a well-known endocrine disruptor, further studies are needed and explore other health effects with exposure to TCS in general population in Korea.

Electronic supplementary material

The online version of this article (10.1186/s40557-019-0283-y) contains supplementary material, which is available to authorized users.

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Research Article

Female non-smokers’ environmental tobacco smoking exposure by public transportation mode: Seyoung Kim, Jin-Soo Park, Minkyu Park, Yeji Kim, Sinye Lim, Hye-Eun Lee; Ann Occup Environ Med 2018;30:24. Published online April 19, 2018; DOI: https://doi.org/10.1186/s40557-018-0239-7

Abstract PDF PubReader ePub

Background

This study aimed to analyze environmental tobacco smoking exposure in female nonsmokers by public transportation mode using representative data of Koreans.

Methods

Data from the Second Korean National Environmental Health Survey (2012–2014) were analyzed. Urine cotinine was analyzed by public transport behavior, secondhand smoke exposure, socioeconomic factors, and health-related factors. Participants were 1322 adult females; those with the top 75% urine cotinine concentrations were assigned to the high exposure group. A logistic regression analysis was performed considering appropriate weights and stratification according to the sample design of the Second Korean National Environmental Health Survey.

Results

The geometric mean of urine cotinine concentrations differed according to public transportation modes: subway (1.66 μg/g creatinine) bus (1.77 μg/g creatinine), and taxi (1.94 μg/g creatinine). The odds ratio [OR] was calculated for the high exposure group. The OR of the taxi (2.39; 95% confidence interval, 1.00–5.69) was statistically significantly higher than the subway value (reference), and marginally significant after adjusted with life style, sociodemographic factors and involuntary smoking frequency (2.42, 95% confidence interval, 0.97–6.04).

Conclusions

The odds ratio of passengers who mainly used taxis was marginally significantly higher than those of passengers who used subways and buses after adjusted with life style and sociodemographic factors. Implementation of supplementary measures and further studies on exposure to environmental tobacco smoking in taxis are warranted.

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Changes in urinary cotinine concentrations in non-smoking adults from the Korean National Environmental Health Survey (KoNEHS) II (2012–2014) after implementation of partial smoke-free regulations
Jeonghoon Kim, Kiyoung Lee
International Journal of Hygiene and Environmental Health.2020; 224: 113419. CrossRef

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Research Article

Relationship between dietary factors and bisphenol a exposure: the second Korean National Environmental Health Survey (KoNEHS 2012–2014): Jin-Soo Park, Seyoung Kim, Minkyu Park, Yeji Kim, Hyeeun Lee, Hyunrim Choi, Sinye Lim; Ann Occup Environ Med 2017;29:42. Published online October 18, 2017; DOI: https://doi.org/10.1186/s40557-017-0200-1

Abstract PDF PubReader ePub

Background

This study was aimed at finding out the exposure level of bisphenol A (BPA), a well-known endocrine disruptor, in relation to dietary factors using a data representing the Korean general population.

Methods

This study was performed on 5402 adults aged 19 years and older based on the Second Korean National Environmental Health Survey (KoNEHS 2012–2014). The data analyzed urinary BPA concentration in relation to socio-demographic variables, health behavior-related variables, and dietary factor-related variables. Odds ratio (OR) was calculated through a logistic regression analysis after dividing the participants into high BPA exposure group and low BPA exposure group based on the top 75 percentile concentration. The logistic regression analysis was carried out considering the appropriate sample weight, stratification, and clustering of the second KoNEHS sample design.

Results

The group drinking bottled water at home and the group using zip-top bags/plastic bags showed significantly higher urinary BPA concentration in female. OR tends to increase as the intake frequency of frozen food increased and OR of frozen food consumption of more than once a week was 1.48 (95% confidence interval (CI) 1.02–2.24) for male and the group drinking bottled water showed significantly higher OR of 1.45 (95% CI 1.06–2.17) after adjusting the related factors for female.

Conclusions

BPA levels were high in female using bottled water and in male consuming frozen food, and therefore bottled water and frozen food need to be avoided to reduce BPA levels.

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Tapas K. Mandal, Nargish Parvin, Sang Woo Joo, Partha Roy
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Original Article

Relationship between Workplace Physical and Chemical Hazard Exposures and Mental Health Problems in Korea: Kee Ock Joh, Tae Jun Park, Jae Il Oh, Do Myung Paek, Jung Sun Park, Sung Il Cho; Korean Journal of Occupational and Environmental Medicine 2011;23(3):287-297. Published online September 30, 2011; DOI: https://doi.org/10.35371/kjoem.2011.23.3.287

Abstract PDF

OBJECTIVES
Mental health and work efficiency are adversely affected by exposure to physical and chemical hazards in the workplace. This study is the first large scale evaluation of the relationship between physical and chemical hazard exposure in the workplace in relation to the mental health of Korean workers.
METHODS
A national survey of a random sample of workers (n=10,043) was conducted between June and September 2006 in Korea. Physical and chemical hazards in the workplace were considered if exposure occurred over more than a quarter of the time spent at work. Mental health problems were defined as work-related depression, anxiety or insomnia. We analyzed whether physical and chemical hazards were independent risk factors for work-related mental health problems by multiple logistic regression analysis after adjusting for age, gender, employment type, education, occupation, duty schedule, work hours, smoking, and alcohol consumption.
RESULTS
The mean age of surveyed workers was 42 years and 58% were male. A total of 7.8% of workers had work-related mental health problems. Exposure to high temperature, mist, fumes, dust, chemicals, and radiation were associated with an increased risk of work-related mental health problems.
CONCLUSIONS
This study reaffirmed that physical and chemical hazard exposure in the workplace significantly elevates the risk of work-related mental health problems.

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Association between physical hazardous agent exposure and mental health in the Korean working population: the 5th Korean Working Conditions Survey
Daeil Kwon, Kyeongmin Kwak, Kiook Baek, Youngchan Chi, Sewhan Na, Jong-Tae Park
Annals of Occupational and Environmental Medicine.2021;[Epub] CrossRef
Use of Frequency Analysis of Exposure of Hazards by Occupations: Findings from the Third and Fourth Korean Working Conditions Survey
Soon-Chan Kwon
Soonchunhyang Medical Science.2019; 25(1): 37. CrossRef
Factors Associated with Depression among Workers by Socio-economic Factors, Health Behaviors, and Characteristics of Work Environment
Hyunkyung Lee, Minsung Sohn, Mankyu Choi
Korean Journal of Health Education and Promotion.2013; 30(5): 125. CrossRef

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Original Article

Effects of Aircraft Noise on Children's Mental Health: Data from the Health Survey of Inhabitants in the Vicinity of Gunsan Airport: Kyeong Yeol Yu, Jae Beom Park, Kyoung Bok Min, Chan Lee, Hyun Gwon Kil, Yu Rim Jung, Kyung Jong Lee; Korean Journal of Occupational and Environmental Medicine 2010;22(4):298-306. Published online December 31, 2010; DOI: https://doi.org/10.35371/kjoem.2010.22.4.298

Abstract PDF

OBJECTIVES
This study was conducted to investigate the effects of aircraft noise exposure on children's mental health problems such as depression and personality.
METHODS
We obtained data from the health examinations of school children in the vicinity of Gunsan airport. This survey was conducted in the rural area, Gunsan during 2009. The study population included 195 children attending 4th to 6th grade from 6 elementary schools near the airport. Based on 60 Weighted Equivalent Continuous Perceived Noise Level (WECPNL) measures of aircraft noise, participants were divided into 2 groups; the exposure group consisted of 106 children from 4 schools, and the reference group included 89 children from the 2 schools in Gunsan. All children completed questions on general characteristics, the Korean Children's Depression Inventory (KCDI) for depression, and the Korea Human Nature Inspection (KHNI) for personality.
RESULTS
Children in the exposure group were at higher risk of depression (5.62, 95% CI 1.12~28.25), and personality changes (2.08, 95% CI 1.07~4.05) than those of the reference group. In particular, children's diligence, cooperation, and concentration, subgroups of personality measure, were affected significantly and negatively, by aircraft noise level.
CONCLUSIONS
Our results suggest that exposure to aircraft noise at school is associated with mental health problems in children. Requirements should be implemented to manage aircraft noise of its affect on children's health.

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Influence of noise exposure on cardiocerebrovascular disease in Korea
Myoungjin Oh, Kwangsoo Shin, Kyungah Kim, Jungwoo Shin
Science of The Total Environment.2019; 651: 1867. CrossRef
Effects of APU Noise on Employees on the Ramp
Sung-Jae Park
Journal of the Korea Academia-Industrial cooperation Society.2016; 17(7): 720. CrossRef

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Original Article

The PTSD Symptom and Related Factors among the Residents after Samsung-Hebei Spirits Oil Spill: Seongsik Cho, Tae Kyung Lee, Jeong Min Kim, Ye Won Bang, Narae Hong, Hyoung June Im, Young Jun Kwon, Yong Cho, Jae Yong Moon, Young Su Ju; Korean Journal of Occupational and Environmental Medicine 2009;21(3):235-245. Published online September 30, 2009; DOI: https://doi.org/10.35371/kjoem.2009.21.3.235

Abstract PDF

BACKGROUND
The purpose of the study was to estimate the mental health problems and other related factors in residents that experienced the Samsung-Hebei spirits oil spill by surveying PTSD symptoms.
METHOD
Trained interviewers performed direct interviews of the residents approximately 70 days after the oil spill. We investigated PTSD symptoms through PTSD Symptom Scale Interview Version (PSS-I). To determine those factors related to PTSD symptoms, the following factors were determined as part of the survey: gender, age, occupation, duration of cleanup activity, monthly income and amount of debt. Logistic regression analysis was used to analyze all factors.
RESULTS
Of the 318 residents investigated, 56.6% of the subjects had PTSD symptoms related to the spirits oil spill (about 70 days post spill). With regard to occupation, those subjects answering fishery (POR:3.05) and commerce (POR:4.24) as their occupations experienced higher PTSD symptoms than residents answering farming as their occupation. Residents who answered that they had debt over 10 million KRW (POR:2.61) were more vulnerable to PTSD symptoms compared to residents without debt; residents with acute physical symptoms were vulnerable (POR:5.11) to PTSD symptom compared to residents without acute physical symptoms. The results of multiple logistic analysis, including the cleanup activity, age, gender, occupation, acute physical symptoms and amount of debt in the model suggest that only cleanup activity increased PTSD symptoms. The subjects who had engaged in cleanup activities for longer periods of time had more PTSD symptoms and an additional dose-response relationship.
CONCLUSION
Many residents in Samsung-Hebei spirits oil spill area had PTSD symptoms. This suggests that there were serious mental health problems among the residents, who might require specific social supports and psychiatric interventions as a result of the oil spill.

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Human health and ecological assessment programs for Hebei Spirit oil spill accident of 2007: Status, lessons, and future challenges
Dawoon Jung, Jung-Ah Kim, Myung-Sook Park, Un Hyuk Yim, Kyungho Choi
Chemosphere.2017; 173: 180. CrossRef

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Original Article

A Comparative Study of Mental Health between the Laid-Off and the Employed Worker in the Similar Industry: Sung Ae Cho, Jin Joo Jung, Jung Wan Koo; Korean Journal of Occupational and Environmental Medicine 2003;15(4):335-343. Published online December 31, 2003; DOI: https://doi.org/10.35371/kjoem.2003.15.4.335

Abstract PDF: OBJECTIVES
This study was conducted to examine the mental health status of the laid off by comparing the unemployed with the employed.
METHODS
A survey questionnaire was used to investigate the mental health status of the laidoff in comparison with that of the employed. The study sample consisted of 247 laid-off people formerly employed in A auto factory and 167 employees working in B auto factory.
RESULTS
The proportion exercising regularly was 20.2% for the laid-off and 34.8% for the employed and the proportion having regular meals was 10.9% and 50.6%, respectively. In addition, the frequency and amount of alcohol consumption and smoking of the laid-off were higher than those of the employed. Among the laid-off, 69.4% responded that they spent less time in talking to their spouse, and 65.4% also reported reduced sexual activities with their spouse. Because of unemployment, 41.8% of the laid-off experienced conflicts with their children, and 53.5% also perceived that they were stigmatized and treated badly by their neighbors, friends and relatives. Mean IFR in the laid-off was 22.9, which was much higher than the 15.3 recorded in the employed. The mean PWI-SF was 24.2 for the laid-off and 13.0 for the employed, which indicates the lower psychological health status of the laid-off than that of the employed. Age, annual salary, family relationship, regular exercise, regular diets, possibility to return to work and perception of the future were related to mental health status for the laid-off. Stepwise multiple regression analysis showed that the most important factor influencing mental health status for the laid-off was family relationships.
CONCLUSIONS
According to the above results, the mental health of the laid-off is worse than that of the employed. Based on this study, a follow-up study focusing on the mental health status of the reemployed to the same factory, is needed to understand the direct mental health effect on the laid-off.

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Original Article

A Study on the Psychological Symptoms of Hospitalized Pneumoconiosis Patients: Comparison with pneumoconiosis Examinees, Coal Miners, and Other Manual Workers: Kyung Young Rhee, Ho Keun Chung; Korean Journal of Occupational and Environmental Medicine 1990;2(2):166-178. Published online August 31, 1990; DOI: https://doi.org/10.35371/kjoem.1990.2.2.166

Abstract PDF: The purpose of this study was to investigate the effect of hospitalization and diagnosis of disease on the mental health of coal workers' pneumoconiosis patient. The study subjects were composed of four groups for comparison; hospitalized coal workers' pneumoconiosis, healthy coal miners, and railroad workers employed by government. About a hundred of respondents in each group were sampled by random. Mental health data were collected by symptom distress checklist 90 (SCL-90), and other characteristics were collected by interview with questionnaire administered trained interviewers in each respondents. Mental health dimension was classified into 9 dimensions; somatization, obsessive-compulsiveness, interpersonal sensitivity, depression, anxiety, hostality, phobic anxiety, paranoid, psychosis. And as total index, global severity index, positive symptoms total, positive symptom distress index were also computed. As a result there is difference of mean score of 9 symptom dimensions among four groups. The mean score of the examinees of depth diagnosis of the impressed coal workers' pneumoconiosis is the highest score in all 9 symptom dimensions. However in the hospitalized coal workers' pneumoconiosis scores of somatization, depression, anxiety, and phobic anxiety were still higher than that of healthy coal miners. And other symptom dimensions were not different from that of healthy coal miners.

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