Annals of Occupational and Environmental Medicine

Original Article

Cooking oil fume exposure and Lung-RADS distribution among school cafeteria workers of South Korea: Minjun Kim, Yangho Kim, A Ram Kim, Woon Jung Kwon, Soyeoun Lim, Woojin Kim, Cheolin Yoo; Ann Occup Environ Med 2024;36:e2. Published online January 31, 2024; DOI: https://doi.org/10.35371/aoem.2024.36.e2

Abstract Abstract in Korean PDF Supplementary Material

Background

Cooking oil fumes (COFs) from cooking with hot oil may contribute to the pathogenesis of lung cancer. Since 2021, occupational lung cancer for individual cafeteria workers has been recognized in South Korea. In this study, we aimed to identify the distribution of lung-imaging reporting and data system (Lung-RADS) among cafeteria workers and to determine factors related to Lung-RADS distribution.

Methods

We included 203 female participants who underwent low-dose computed tomography (LDCT) screening at a university hospital and examined the following variables: age, smoking status, second-hand smoke, height, weight, and years of service, mask use, cooking time, heat source, and ventilation. We divided all participants into culinary and non-culinary workers. Binomial logistic regression was conducted to determine the risk factors on LDCT of Category ≥ 3, separately for the overall group and the culinary group.

Results

In this study, Lung-RADS-positive occurred in 17 (8.4%) individuals, all of whom were culinary workers. Binary logistic regression analyses were performed and no variables were found to have a significant impact on Lung-RADS results. In the subgroup analysis, the Lung-RADS-positive, and -negative groups differed only in ventilation. Binary logistic regression showed that the adjusted odds ratio (aOR) of the Lung-RADS-positive group for inappropriate ventilation at the workplace was 14.89 (95% confidence interval [CI]: 3.296–67.231) compared to appropriate ventilation as the reference, and the aOR for electric appliances at home was 4.59 (95% CI: 1.061–19.890) using liquid fuel as the reference.

Conclusions

The rate of Lung-RADS-positive was significantly higher among culinary workers who performed actual cooking tasks than among nonculinary workers. In addition, appropriate ventilation at the workplace made the LDCT results differ. More research is needed to identify factors that might influence LDCT findings among culinary workers, including those in other occupations.

한국 학교 급식소 종사자의 조리흄 노출과 Lung-RADS 분포
목적
2021년부터 한국에서는 개별 학교 급식 종사자의 폐암 산업재해가 인정되고 있다. 본 연구에서는 급식 종사자들의 Lung-imaging reporting and data system ( Lung-RADS ) 분포를 확인하고, Lung-RADS 분포와 관련된 요인을 탐색해보고자 한다.
방법
2020년도에 울산대학병원에서 저선량 CT를 촬영한 여성 참가자 중 203명을 대상으로 나이, 흡연 여부, 간접 흡연 여부, 키, 체중, 근무 년수, 마스크 착용 여부, 조리 시간, 열원, 환기방식 등의 변수를 조사하였다. 참가자를 조리직, 비조리직으로 분류하였다. 범주 3이상에 대한 영향을 확인하기 위해 이분형 로지스틱을 전체집단 조리직 집단에 나누어 실시하였다.
결과
Lung-RADS 양성은 17 (8.4%)명에게서 발생했고 모두 조리직에 해당했다. 이분형 로지스틱 회귀분석을 시행한 결과 전체집단에서 Lung-RADS 결과에 유의미한 영향을 주는 변수는 확인할 수 없었다. Subgroup 분석에서 Lung-RADS 양성, 음성군은 직장 내 환기방식에서만 차이가 있었다. 이분형 로지스틱 회귀분석 결과 직장에서 환기를 철저히 한 것을 참고치로 했을 때 부적절한 환기에 대한 Lung-RADS 양성의 오드비가 14.89이고 가정에서 액화연료 사용을 참고치로 했을 때 전기 요리기구 사용의 오드비는 4.59이였다.
결론
실제 조리업무를 시행하는 조리직의 경우 비조리직에 비해 Lung-RADS 양성 비율이 유의하게 높았다. 또한 조리실 환경에서 환기를 철저하게 하는 것이 Lung-RADS 소견에 영향을 주었다.

Citations

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Shreya Guha, Keza Levine, Elaine Liang, Alison S. Baskin, Michael Ou, Jeffrey B. Velotta
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Case Report

Work-related COPD after years of occupational exposure: YounMo Cho, JongIn Lee, Min Choi, WonSeon Choi, Jun-Pyo Myong, Hyoung-Ryoul Kim, Jung-Wan Koo; Ann Occup Environ Med 2015;27:6. Published online February 19, 2015; DOI: https://doi.org/10.1186/s40557-015-0056-1

Abstract PDF

Background

Cigarette smoking is known as the most important risk factor of chronic obstructive pulmonary disease (COPD). However, occupational exposure to other substances can result in COPD.

Case report

A 76-year-old man with occupational exposures to mixtures of silica dust, gas, and fumes for 10 years and with a 25 pack-year smoking history was diagnosed with COPD. His computed tomogram scan revealed some hyperinflation with emphysematous change in both upper lobes. In the pulmonary function tests, his post-bronchodilator forced vital capacity (FVC), forced expiratory volume in one second (FEV₁), and FEV₁/FVC% were 2.20 L (67% of the predicted value), 1.12 L (52% of the predicted value), and 51%, respectively, indicating moderate COPD. This case of COPD was confirmed as a work-related disease by the Occupational Lung Disease Research Institute in Korea Workers’ Compensation & Welfare Service.

Conclusion

Exposure to various substances such as silica dust, gas, and fumes from furnace and boiler installation was likely the cause of COPD in this patient. Thus, occupational exposure should be considered an important risk factor of COPD.

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Original Article

Health Effect Assessment on Volunteers Involved in the Cleanup Operation Following the Hebei Spirit Oil Spill Along the Taean Coast, Korea: Chul Ho Lee, Kyung Hwa Park, Min Jung Lee, Wook Hee Choi, Heon Kim, Choong Hee Park, Dae Seon Kim, Seung Do Yu; Korean Journal of Occupational and Environmental Medicine 2010;22(1):11-19. Published online March 31, 2010; DOI: https://doi.org/10.35371/kjoem.2010.22.1.11

Abstract PDF

OBJECTIVE: The objetive of this study is to assess the level of oxidative stress by the exposure to volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) in volunteers who cleaned up the crude oil spilled from the Hebei Spirit on the Coast of Taean County, Korea.
METHODS
The study subjects were 46 volunteers and 37 controls from the National Institute of Environmental Research. A self-administered questionnaire was used for volunteers to examine their working environment and health effects. Urinary concentrations of hippuric acid, 1-hydroxypyrene, and 2-naphthol were measured as exposure markers for VOCs and PAHs, and urinary thiobarbituric acid reactive substances (TBARS) and 8-hydroxydeoxyguanosine (8-OHdG) levels were measured as oxidative stress markers.
RESULTS
Sixty-four percent of the respondents presented a variety of symptoms, including sore eyes and throat, nausea, dizziness, headache, low back pain, and leg pain after participating in the cleanup operation. Urinary 2-naphthol and TBARS concentrations appeared higher in the volunteers. Univariate and multivariate analyses showed that urinary TBARS and 8-OHdG levels were positively correlated with urinary 2-naphthol and 1-hydroxypyrene concentrations respectively, especially among the volunteers.
CONCLUSIONS
The result implies that participating in cleanup work of oil spills may have a possibility to induce oxidative damage by exposure to PAHs in crude oil.

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