Annals of Occupational and Environmental Medicine

Jong Eun Kim

10 Articles

Detection of Cases and a Cause of Lead Exposure in Korean Steel Company: Bon Hak Koo, Young Ki Kim, Sang Gil Lee, Dong Mug Kang, Jong Eun Kim; Korean Journal of Occupational and Environmental Medicine 2012;24(4):441-448. Published online December 31, 2012; DOI: https://doi.org/10.35371/kjoem.2012.24.4.441

BACKGROUND
We report cases of high lead exposure in a Korean steel manufacturing company and a likely cause for these cases.
CASE
REPORT: Neurological examinations, neurobehavioral tests, blood tests, and urine tests were performed to detect an association between high lead exposure and physical symptoms for workers in a steel manufacturing company. In order to determine the cause of high lead exposure, the work process and environment was assessed. The highest lead exposure was during the work process. We found that the interior of an oil storage tank was coated with lead-containing paint, leading to severe exposure during the cutting process. In two observations, 4 of 12 workers diagnosed with occupational disease were found to have high exposure to lead from the storage tank and three had increased beta-2 microglobulin levels in the blood (indicative of urinary tract damage).
CONCLUSIONS
Lead management, including routine measurements of the working environment and examinations of lead concentrations in workers, are needed in the korean scrap metal industry. In addition, rules requiring workers to wear personal protective equipment and receive education about lead exposure should be strictly enforced.

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Evaluation of Temporal Trends of Lead Exposure in Korean Workers Using Workplace Monitoring Data
Dong-Hee Koh, Sangjun Choi, Ju-Hyun Park, Sang-Gil Lee, Hwan-Cheol Kim, Inah Kim, Jong-Uk Won, Dae Sung Lim, Hoekyeong Seo, Dong-Uk Park
Journal of Korean Medical Science.2023;[Epub] CrossRef
Occupational Lead Exposure from Indoor Firing Ranges in Korea
Won-Ju Park, Suk-Ho Lee, Se-Ho Lee, Hye-Sik Yoon, Jai-Dong Moon
Journal of Korean Medical Science.2016; 31(4): 497. CrossRef

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Risk Factors for Absenteeism due to Work related Musculo-skeletal Disorders among Korean Employees: Sang Gil Lee, Jong Eun Kim, Young Ki Kim, Oh Jun Kwon, Dong Mug Kang; Korean Journal of Occupational and Environmental Medicine 2012;24(3):239-251. Published online September 30, 2012; DOI: https://doi.org/10.35371/kjoem.2012.24.3.239

Abstract PDF

OBJECTIVES
Absenteeism due to musculo-skeletal disorders (MSDs) of workers is an important index of occupational health. Since research on its causes is rare in Korea, the risk factors for absenteeism due to MSDs should be studied.
METHODS
Using the 2nd Korean working condition survey data, we investigated the prevalence of absenteeism due to MSDs. We also analyzed the risk factors for absenteeism by multiple logistic regression analysis in Korean employees.
RESULTS
Prevalence of absenteeism due to MSDs was 0.7% in all employees, 0.5% in men, and 0.9% in women. In logistic regression analysis, gender, age, presence of a representative worker organization, working on tight deadlines, and pace of work dependent on automated equipment/machine were risk factors of absenteeism due to MSDs for both sexes. For males, working time, working at a very high speed were additional risk factors. For females, pace of work dependent on numerical production, performance, and targets were additional risk factors. Although not included in the multiple logistic regression analysis, handling heavy loads in both sexes and average monthly income for women were risk factors in the univariate analysis.
CONCLUSIONS
For absenteeism due to MSDs, the presence of a representative worker organization, along with work pace and its determinants were important risk factors.

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Effect of an Active Tailored Exercise Program on Pain and Oswestry Disability Index in Automobile Manufacturing Workers with Musculoskeletal Symptoms of the Low Back
Won-Ho Kim
Journal of The Korean Society of Physical Medicine.2019; 14(3): 109. CrossRef
Effect of Physical Therapy Based Tailored Exercise Program on Pain, Accident incidence Rates, and Lost Days of Work in Manufacturing Worker: Single Subject Design
Kwon-Woo Lee, Won-Ho Kim
Journal of The Korean Society of Physical Medicine.2017; 12(2): 113. CrossRef
Related Factors of Musculoskelectal Symptoms in University Hospital Workers
Kyoung-A Han
Journal of the Korea Academia-Industrial cooperation Society.2015; 16(3): 1928. CrossRef
Effects of Fire Fighters' Absence Ergonomics Risk Factor Exposer
Seo-Yeon Choi, Dong-Hyun Park
Journal of the Korea Safety Management and Science.2014; 16(3): 101. CrossRef

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Comparison of the Self-rated Health Status of Wage Workers in Korea according to Income Index by Gender: Dae Ho Kim, Dong Mug Kang, Jong Eun Kim, Young Ki Kim, Jin Kon Sul, Soon Choy; Korean Journal of Occupational and Environmental Medicine 2011;23(4):360-370. Published online December 31, 2011; DOI: https://doi.org/10.35371/kjoem.2011.23.4.360

Abstract PDF

OBJECTIVES
This study aims to find differences that reflect the magnitude of health disparities in wage workers in Korea according to income index(personal income, household income, equivalized income) by gender.
METHODS
Data was obtained from the 11th wave of Korean Labor and Income Panel Survey in 2008. This study analyzed 4,205 subjects(2,570 males and 1,635 females) aged 19-65 years. To compare the health effects of each income index by gender, unconditional multiple logistic regression, health-related behaviors, and working conditions were used. The unconditional multiple logistic regression was adjusted by socio-demographic characteristics. All statistics were estimated using SAS survey procedures.
RESULTS
According to unconditional multiple logistic regression, significant differences in ORs between men and women were observed in this study for those wage workers who self-rated their health status to be poor. This was consistent between each income index. Men had an OR of 1.76 (95% CI, 1.28~2.43) by personal income, 1.70 (95%CI, 1.25~2.32) by household income and 1.69 (95% CI, 1.23~2.31) by equivalized income. Women had an 2.09 (95% CI, 1.47~2.97) by household income and OR of 1.95 (95% CI, 1.36~2.79) by equivalized income, but personal income did not have a significant effect on OR for women.
CONCLUSIONS
The study of occupational and environmental medicine should consider that each income index has different effects on the self-rated health status according to gender. Household income index and equivalized income index would represent a health status for women.

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Working Poverty and Health Disparities in Korean Workers
Jin-Hwa Lee, Bokim Lee
Journal of Korean Academy of Community Health Nursing.2020; 31(4): 514. CrossRef
Job Stress and Mental Health of Female Household Head Workers
Hyung Seon Kim, Min Kwon, Jinhwa Lee
Korean Journal of Occupational Health Nursing.2016; 25(4): 249. CrossRef

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Pulmonary Function and Respiratory Symptoms of Municipal Fire Officers in Busan.: Sung Hoon Kim, Jung Won Kim, Jong Eun Kim, Byung Chul Son, Jeong Ho Kim, Chang Hee Lee, Sang Hwan Jang, Chae Kwan Lee; Korean Journal of Occupational and Environmental Medicine 2006;18(2):103-111. Published online June 30, 2006; DOI: https://doi.org/10.35371/kjoem.2006.18.2.103

Abstract PDF

OBJECTIVES
The purpose of this study was to evaluate the relationship between respiratory disorders and fire exposure by investigating and analyzing the lung function and respiratory symptoms of firefighters.
METHODS
The health effects of firefighting on respiratory function were investigated in 699 male fire officers in 4 fire departments in Busan by recording respiratory symptoms and measuring lung function. The data were analysed according to fire exposure and smoking habits.
RESULTS
Mean spirometric data showed significantly decreased levels in the fire-exposed group (FVC, -0.20 L; FVC%, -4.2%; FEV(1) -0.21 L; FEV(1)%, -5.1%; FEF25%, -0.13 L/SEE p<0.05). After stratification by smoking habits, FVC and FEV(1) showed a significant difference between groups. The prevalence of spirometric abnormality was greater for the fire-exposed group than for the non-exposed group. Significantly higher prevalences of nasal stiffness (16.7% vs. 10.9%), sore throat (17.7% vs.14.2%) and chest tightness (6.5% vs. 2.5%) were recorded in firefighters compared to controls (p<0.05). However, after stratification by smoking habits, the 3 symptoms were showed only marginal differences in the smoking group.
CONCLUSIONS
This study demonstrated that fire-exposed firefighters generally suffer a decline of lung function and a higher prevalence of respiratory symptoms. These results suggest that the exposure to routine firefighting activity is associated with adverse health effects to the respiratory system.

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A Study on the Relationship between Firefighters Disease and Health Status
Ho-Jung Kang, Sung-Ho Byun, Chul-Hwan Mun, Yu-Jung Choi, Jae-Wook Choi
Fire Science and Engineering.2020; 34(5): 86. CrossRef
Related factors for preserving firefighter's pulmonary function
Seonggyu Kim, Ye-eun Jeon, Hyeseung Ryu, Mi-Young Lee, Insung Chung
Annals of Occupational and Environmental Medicine.2020;[Epub] CrossRef
Effects of Environmental Air Pollution on Pulmonary Function Level of Residents in Korean Industrial Complexes
Eunju Hong, Seokwon Lee, Geun-Bae Kim, Tae-Jong Kim, Hyoung-Wook Kim, Kyoungho Lee, Bu-Soon Son
International Journal of Environmental Research and Public Health.2018; 15(5): 834. CrossRef
Psychological Factors Influence the Irritable Bowel Syndrome and Their Effect on Quality of Life among Firefighters in South Korea
Seung-Ho Jang, Han-Seung Ryu, Suck-Chei Choi, Sang-Yeol Lee
Psychiatry Investigation.2017; 14(4): 434. CrossRef
Diesel Exhaust Particle Exposure and its Pulmonary Function Effects
Yong-Jin Lee, Da-Hye Kim, Soo-Hwan Kim, Jeong-Soo Kim, Dong-Chun Shin, Young-Wook Lim
Journal of Korean Society for Atmospheric Environment.2016; 32(5): 457. CrossRef
Muscuoloskeletal Disorders of Korean Fire Fighters: Applicants for Public Worker's Compensation from 2011 to 2013
Jangwhon Yoon
Fire Science and Engineering.2016; 30(3): 133. CrossRef
Knowledge, Awareness and Health Risk Concerns on Occupational Exposure to Radiation among Firefighters in Korea
Hyeongyeong Lee, Hyeongwan Yoon, Jeongim Park
Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(4): 516. CrossRef
Pulmonary function decline in firefighters and non-firefighters in South Korea
Ju-Hwan Choi, Jae-Hong Shin, Mi-Young Lee, In-Sung Chung
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
An Ergonomic Analysis for Heavy Manual Material Handling Jobs by Fire Fighters
Su-Jung Im, Jong-Tae Park, Seo-Yeon Choi, Dong-Hyun Park
Journal of Korean Institute of Fire Science and Engineering.2013; 27(3): 85. CrossRef
Health Hazards in Firefighters
Kyoo Sang Kim
Hanyang Medical Reviews.2010; 30(4): 296. CrossRef
Occupational Health and Fitness for Work of Firefighters
Inah Kim, Jaechul Sung
Journal of the Korean Medical Association.2008; 51(12): 1078. CrossRef

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Epidemiologic Characteristics of Occupational Lung Cancer in the Busan area: Jung Il Kim, Jin Ha Kim, Dongmug Kang, Jung Won Kim, Jong Eun Kim, Jin Hong Ahn, Chang Hoon Lee, Hyun Jae Lee, Jin Uk Kang, Jin Kun Son, Jin Kon Sul, Young Ki Kim, Kap Yeol Jung, Joon Youn Kim; Korean Journal of Occupational and Environmental Medicine 2006;18(1):53-58. Published online March 31, 2006; DOI: https://doi.org/10.35371/kjoem.2006.18.1.53

Abstract PDF

OBJECTIVES
The objectives of this study were to estimate the proportion of occupational lung cancer in the Busan area.
METHODS
Occupational physicians of four university hospitals operating an occupational disease surveillance system in the Busan area actively interviewed all of the newly diagnosed, lung cancer cases about their characteristics and occupational histories through a survey questionnaire and chart review. To evaluate and agree on the work-relativity, the cases were presented in periodic meetings.
RESULTS
A total of 301 lung cancer cases were interviewed, of which 50 (16.6%, all male, 27 probable and 23 possible) were related to occupational exposure. The exposure materials were asbestos, Cr, PAH etc. Pathologic findings included squamous cell carcinoma, adenocarcinoma and small cell carcinoma.
CONCLUSIONS
The proportion of occupational lung cancer cases above the probable level was 9% and above the possible level was 17%. To develop the public health policy and to prevent further cancer death, the meaningful data from occupational cancer surveillance systems should be collected continuously for ongoing monitoring.

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Overview of occupational cancer in painters in Korea
Jun-Pyo Myong, Younmo Cho, Min Choi, Hyoung-Ryoul Kim
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef
Decision Tree of Occupational Lung Cancer Using Classification and Regression Analysis
Tae-Woo Kim, Dong-Hee Koh, Chung-Yill Park
Safety and Health at Work.2010; 1(2): 140. CrossRef

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Gene Expression Analysis in Basal Ganglia of Manganese-Exposed Rat Based on cDNA Array: Chae Kwan Lee, Noh Sung Min, Deog Hwan Moon, Jeong Ho Kim, Byung Chul Son, Dae Hwan Kim, Chang Hee Lee, Hwi Dong Kim, Jung Won Kim, Jong Eun Kim, Jin Hong Ahn, Chae Un Lee; Korean Journal of Occupational and Environmental Medicine 2005;17(4):352-364. Published online December 31, 2005; DOI: https://doi.org/10.35371/kjoem.2005.17.4.352

Abstract PDF: OBJECTIVES
This study investigated the gene expression profile in basal ganglia of manganese-exposed rats based on cDNA array analysis.
METHODS
For cDNA array, 25 male Sprague-Dawley rats (250+/-25 g) were intraperitoneally injected with 25 mg/kg B.W./day of MnCl2 (0.3 ml) for 10 days. For dose-related gene expression analysis, rats were intraperitoneally injected with 0.2, 1.0, and 5.0 mg/kg B.W/day of MnCl2 for 10 days. Control rats were injected with an equal volume of saline. RNA samples were extracted from brain tissue and reversetranscribed in the presence of [alpha32P]-dATP. Membrane sets of the Atlas Rat 1.2 array II and Toxicology array 1.2 kit (Clontech, Palo Alto, CA) were hybridized with cDNA probe sets. Northern blot hybridization method was employed to assess the dose-related gene expression.
RESULTS
Fifty-two genes showed significant changes in expression of more than two-fold. Twentyeight were up-regulated and 24 were down-regulated in the manganese-exposed group compared to the control. Among the 52 genes, 28 genes including nuclear factor I-X1 (NF1-X1), neuroligin 2 and 3, mitochondrial stress-70 protein (MTHSP70), neurodegeneration-associated protein 1 (Neurodap1), multidrug resistance protein (MDR), and endoplasmic reticulum stress protein 72 (ERP72), were reported for the first time related to the manganese-induced neurotoxic-metabolism in the rat basal ganglia. According to the dose-related gene expression analyses, MTHSP70, Neurodap1 and ERP72 genes were up-regulated compared to the control even in the group exposed to low manganese dose (0.2 mg/kg B.W./day).
CONCLUSIONS
Twenty-eight genes detected for the first time in this study were closely related to the manganese-induced neurotoxic-metabolism in the rat basal ganglia and further study of these genes can give some more useful information about the manganese metabolism.

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Effects of Cadmium on Placental Function and Reproduction in Rats: Jin Hong Ahn, Kwang Soo Ko, Chae Kwan Lee, Deog Hwan Moon, Byung Chul Son, Dae Hwan Kim, Chang Hee Lee, Hwi Dong Kim, Jung Won Kim, Jong Eun Kim, Jin Ho Chun, Chae Un Lee; Korean Journal of Occupational and Environmental Medicine 2004;16(3):236-249. Published online September 30, 2004; DOI: https://doi.org/10.35371/kjoem.2004.16.3.236

Abstract PDF: OBJECTIVES
This study investigated the toxic effects of cadmium on placental function and reproduction in rats. For this study, the mRNA levels of the placental prolactin-growth hormone (PRL-GH) gene family, placental trophoblast cell frequemcy and reproductive data were analyzed.
METHODS
Pregnant F344 Fisher rats (200 g+/-23 g) were intraperitoneally injected with 0, 0.5, and 5.0 mg/kg B.W/day of cadmium (CdCl2) dissolved in saline from days 7-11 or 16-20 of pregnancy, and were sacrificed at days 11 or 20, respectively. The mRNA levels were analyzed by Northern blot hybridization and reverse transcription-polymerase chain reaction. The hormone concentration was analyzed by radioimmunoassay and the frequemcy of the placental trophoblast cells was observed by histochemical study. Reproductive data were surveyed at day 20 of the pregnancy and after the births. Statistical analysis was carried out using the SAS program (version 8.1).
RESULTS
The mRNA levels of the PRL-GH gene family were reduced dose dependently by cadmium. The mRNA levels of Pit-1a and -b isotype genes were also reduced by cadmium. The hormone concentration of PL-Iv and -II was decreased by cadmium. During the second half of pregnancy (days 11-21), a high dose of cadmium exposure significantly reduced the frequency of spongiotrophoblast and trophoblast giant cells that secrete the PRL-GH hormones. In the last stage of pregnancy (day 20), a high dose of cadmium exposure induced the apoptosis of spon-giotrophoblast cells in the junctional zone of the placenta. Reproductive data such as placental and infant weight, number of live fetuses were decreased, and number of resorptions and dead fetuses, post-implantation loss were increased significantly in the cadmium exposed group compared with the control.
CONCLUSIONS
Cadmium disrupts the functions of the placenta and these effects leads to reproductive disorders in rats.

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Effects of Toluene on the Expression of Placental PRL-GH Family Genes and Reproduction in the Rat: Byong Soo Choe, Chae Kwan Lee, Deog Hwan Moon, Byung Chul Son, Dae Hwan Kim, Chang Hee Lee, Hwi Dong Kim, Jung Won Kim, Jong Eun Kim, Chae Un Lee; Korean Journal of Occupational and Environmental Medicine 2004;16(3):262-275. Published online September 30, 2004; DOI: https://doi.org/10.35371/kjoem.2004.16.3.262

Abstract PDF: OBJECTIVES
The purpose of this experimental study was to investigate the toxic effects of toluene on the placental functions and reproductionin the rat. In this study, the expression of placental prolactin-growth hormone (PRL-GH) and Pit-1 genes, the frequency of placental trophoblast cells, and the reproductive data were analyzed.
METHODS
The pregnancy of the Sprague-Dawley rats (250+/-25 g) was determined by verifying the presence of the copulatory plug or sperm in the vaginal smear and the day on which this was observed was defined as pregnancy day 0. The pregnant rats were divided into three groups. The control group was intraperitoneally (ip) injected with sesame oil, and the other two groups were given either 150 or 750 mg/kg BW/day of toluene resuspended in sesame oil during pregnancy days 7-11 and 16-20. The rats from the three experimental groups were sacrificed on pregnancy days 11 and 20, respectively. The mRNA levels of the PRL-GH, Pit-1a and b isotype genes were analyzed by Northern blot hybridization and Reverse transcription-polymerase chain reaction (RT-PCR), respectively. The hormonal concentration was analyzed by Radioimmunoassay. The frequency of the placental trophoblast cells was determined by means of a histochemical study. Reproductive data, such as the placenta and infnat weight, pregnancy period and litter size were surveyed at pregnancy day 20 and after birth. Statistical analysis was carried out by means of the SAS program (version 8.1).
RESULTS
The mRNA levels of the PRL-GH family genes were reduced in a linear fashion by exposure to toluene. The mRNA levels of the Pit-1a and b isotype genes, which induce the expression of the PRL-GH family genes, were also reduced by exposure to toluene. The placental lactogen Iv and II concentrations in the rat placenta, fetus and maternal blood were also decreased by exposure to toluene. During the last stage of gestation, exposure to a high dose of toluene reduced the frequency of the spongiotrophoblast cells that secrete the PRL-GH hormones. Reproductive data such as the placenta and infant weight, and litter size were reduced, and the pregnancy period was extended in the toluene exposed group as compared with the control group.
CONCLUSIONS
Toluene disrupts the PRL-GH hormone metabolism in the rat placenta and this leads to reproductive disorder.

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Occupational disease surveillance system in Busan, Ulsan, Kyung-Nam area: Jung Il Kim, Byung Gwan Kim, Jung Won Kim, Chang Ho Chae, Cheol Ho Yi, Dongmug Kang, Ji Hong Kim, Jin Ha Kim, Young Wook Kim, Young Ha Lee, Ji Ho Lee, Younghee Choi, Jung Ho Kim, Hyung Ryul Yun, Cheol In Yoo, Baek Geun Jeong, Tae Won Jang, Yun Gyu Kim, Dong Young Yun, Jin Uk Kang, Jong Eun Kim, Jin Hong Ahn, Dong Joon Lee, Joon Ho Jang, Kwang Young Lee, Hyu Ran Song, Yong Hwan Lee, Byung Man Cho, Hong Ryul Choi, Sang Baek Koh, Euna Kim, Yu Jin Lee, Young Seoub Hong, Kap Yeol Jung, Jung Man Kim, Joon Youn Kim; Korean Journal of Occupational and Environmental Medicine 2004;16(1):1-12. Published online March 31, 2004; DOI: https://doi.org/10.35371/kjoem.2004.16.1.1

Abstract PDF

OBJECTIVE: Occupational medicine specialists in the Busan, Ulsan and Kyung-Nam areas established an area-based occupational disease surveillance system and used this system to collected case information for the purpose of preventing occupational diseases METHODS: 11 hospitals participated in this system. The authors selected five main diseases, which were hand-arm vibration syndrome (HAVS), work-related musculoskeletal disorder (WRMSD), occupational asthma, occupational skin disease and occupational lung cancer and established their case definitions. All cases were reported on the web, and real time analysis was conducted.
RESULTS
Between Apri1 2001 and April 2003, 192 cases of HAVS, 118 cases of WRMSD, 33 cases of occupational asthma, 17 cases of occupational skin disease and 17 cases of occupational lung cancer (for a total of 377 cases of these five main diseases) were reported. Most of the HAVS cases came from shipbuilding, and 172 of them (92.7 %) were associated with grinding. Of the four main types of WRMSD, carpal tunnel syndrome (CTS) was the most prevalent with 46 cases and shipbuilding was also the main industry involved (83.9 %). The ergonomic risk factors involved mainly associated with the hand. In 19 (57.6 %) and 4 (12.1 %) cases of occupational asthma, the agents included isocyanate and welding fume, respectively. 64.7 % of the cases of occupational skin diseases were contact dermatitis, and organic solvents and welding fume were the main agents involved. The causative agents of occupational lung cancer included Cr, welding fume, PAH, Ni, etc. 10 (58.8 %) of the cases were diagnosed as squamous cell carcinoma and 5 (29.4 %) as adenoma.
CONCLUSION
This result showed that an area-based occupational disease surveillance system might provide an effective method of evaluating the prevalence of such diseases, however the Busan, Ulsan and Kyung-Nam provinces are too large to be treated as individual areas. Therefore, the authors suggest that each province should establish its own surveillance system.

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Work-relatedness of lung cancer by smoking and histologic type in Korea
Young-Il Lee, Sang-Gil Lee, Dong-Mug Kang, Jong-Eun Kim, Young-Ki Kim, Jong-Han Leem, Hwan-Cheol Kim
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
Occupational Skin Diseases in Korea
Yeon-Soon Ahn, Min-Gi Kim
Journal of Korean Medical Science.2010; 25(Suppl): S46. CrossRef

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Risk Factors of Work-related Musculoskeletal Symptoms Among Ship-yard Workers: Jong Eun Kim, Dong Mug Kang, Yong Chul Shin, Mi A Son, Jung Won Kim, Jin Hong Ahn, Young Ki Kim, Deog Hwan Moon; Korean Journal of Occupational and Environmental Medicine 2003;15(4):401-410. Published online December 31, 2003; DOI: https://doi.org/10.35371/kjoem.2003.15.4.401

Abstract PDF

OBJECTS: This study was conducted to prepare the primitive data of work-related musculoskeletal disorders (WMSDs) among ship-yard workers in order to set up management and prevention strategies by investigating the risk factors for WMSD symptoms.
METHODS
We carried out a self-administered questionnaire survey of 7,237 blue-collar workers during October 2001, in a ship-yard of Kyungsangnam Province. We collected 2,223 questionnaires and analysed 1,985. The questionnaires included demographic data, quick exposure check (QEC) for ergonomic risk factors, and Karasek's job content questionnaires (JCQ) for job stress. WMSDs were evaluated by the National Institute of Occupational Safety and Health (NIOSH) surveillance criteria.
RESULTS
Multiple logistic regression analysis was used to examine the relationship between risk factors and musculoskeletal symptoms. From the results, significant variables were age, maximum weight of manual handling material, frequency of the back movement during manual handling tasks, deviation or bending of the wrists/hands position, excessively bent or twisted head/neck, job dissatisfaction, and high job demand.
CONCLUSIONS
In order to reduce musculoskeletal disorders of ship-yard workers, it is recommended to reduce the frequency of back movement during manual handling tasks, wrists/hand deviation or bending, and neck bending or twisting. In addition, devoted effort is needed to increase job satisfaction and to reduce job demand.

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Validation of Types of Body Pain Areas and Related Factors in the Korean Aged Using Latent Class Analysis
Sang Ye Shin, Eun Suk Lee
Research in Community and Public Health Nursing.2023; 34: 22. CrossRef
Musculoskeletal Disorder Symptoms and Its Related Factors among Male Workers in Manufacturing Industries
Seung-Hyun Lee, Young-Chae Cho
Journal of the Korea Academia-Industrial cooperation Society.2015; 16(10): 6627. CrossRef
The Study of Muscle Fatigue and Risks of Musculoskeletal System Disorders from Text Inputting on a Smartphone
Kyung Ko, Hee-Soo Kim, Ji-Hea Woo
Journal of the Ergonomics Society of Korea.2013; 32(3): 273. CrossRef
Medical Managements of Musculoskeletal Diseases in Shipbuilding Industry
Jong-Eun Kim, Young-Ki Kim, Dong-Mug Kang
Journal of the Ergonomics Society of Korea.2012; 31(1): 157. CrossRef
Musculoskeletal Disorder Symptoms and Related Factors among Male Workers in Small-scale Manufacturing Industries
Seung-Hyun Lee, Ju-Yeon Lee, Young-Chae Cho
Journal of the Korea Academia-Industrial cooperation Society.2012; 13(9): 4025. CrossRef
Development and Evaluation of the Neck Supporter for Preventing Neck-related MSDs
Yong-Ku Kong, Jun-Goo Han
Journal of the Ergonomics Society of Korea.2011; 30(2): 297. CrossRef

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