Annals of Occupational and Environmental Medicine

Original Article

Comparison of Cardiovascular Disease Status Between Large Scale Industry Office and Self Employed Male Workers: Keun Ho Jang, Won Ju Park, Myeong Bo Kim, Dae Kwang Lee, Hong Jae Chae, Jai Dong Moon; Korean Journal of Occupational and Environmental Medicine 2011;23(2):130-138. Published online June 30, 2011; DOI: https://doi.org/10.35371/kjoem.2011.23.2.130

OBJECTIVES
The aim of this study is to compare the cardiovascular disease status between large scale industry office and self employed male workers who have gaps in their intensive health management.
METHODS
The cross sectional study was carried out with subjects composed of 244 shipyard office male workers and 381 self employed male workers, aged 30 to 55 years. They were given a health exam in a general hospital from January 2007 to June 2009. Information was based on data from self-administered questionnaires, physical examination and laboratory results on blood samples. The degree of coronary artery calcification and stenosis was evaluated by a 64 channel multi-detector computed tomography angiography.
RESULTS
The prevalence of hypertension(p<0.01) and diabetes mellitus(p=0.02) and waist circumference(p<0.01) was significantly lower in the shipyard office workers than in self employed workers. Proper drinking(p<0.01) was more commmon in shipyard office workers. The rates of coronary artery calcification and stenosis were estimated to be 18.4% and 11.5% respectively for shipyard office workers and were significantly lower than the 26.5% and 21.5% for self employed workers. After adjustment for age, the probability of coronary artery stenosis in shipyard office workers was lower than in self employed workers (OR=0.56, 95% CI=0.35~0.90).
CONCLUSIONS
The study results verified the benefits of a health promotion and intervention program and the healthy worker effect for cardiovascular diseases. More specifically, it verified the benefits regarding coronary artery stenosis in large scale industry office workers. This result should encourage the establishment of health promotion programs and the study of occupational epidemiology.

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The effect of employment transitions on physical health among the elderly in South Korea: A longitudinal analysis of the Korean Retirement and Income Study
Juyeon Lee, Myoung-Hee Kim
Social Science & Medicine.2017; 181: 122. CrossRef
Association of Work-related Characteristics and Hypertension among White Collar Workers
Chae-Bong Kim, KyooSang Kim
Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(3): 418. CrossRef
Comparison of oral health status by metabolic syndrome risk factors in workers
In-Young Ku, Seon-Jeong Moon, Myeong-Seon Lee, Kyung-Hwan Ka
Journal of Korean society of Dental Hygiene.2013; 13(4): 581. CrossRef

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Original Article

The Relationship of Serum CEA Levels and Type of Work in Shipyard Workers: Won Ju Park, Myoung Bo Kim, Yang Hyun Kim, Ryoung Jin Park, Keun Ho Jang, Hong Jae Chae, Jai Dong Moon; Korean Journal of Occupational and Environmental Medicine 2009;21(4):293-300. Published online December 31, 2009; DOI: https://doi.org/10.35371/kjoem.2009.21.4.293

Abstract PDF

OBJECTIVES
Benign conditions have been known to cause an increase in the levels of serum carcinoembryonic antigen, a level change that is often associated with an increase in the occurrence of malignancy. The purpose of this study was to elucidate the relationship between serum CEA levels and type of work in shipyard workers.
METHODS
From July-August 2007, 637 study subjects were enrolled into the study with the following characteristics: age 37~58 years, healthy shipyard workers, and who undergone an examination in a general hospital. Data on general characteristics was gathered from self-administered questionnaires. Information on job factors was collected from company personnel data. Serum CEA levels were measured after 10 hours'fasting.
RESULTS
The level of mean serum CEA was 1.83+/-1.20 ng/mL. On univariate analysis, the mean CEA level was significantly higher in older age groups (P<0.05), current smokers, lower education, and in production workers (P<0.01). After adjusting for age, BMI, cigarette smoking, job pattern, and educational level, the serum CEA level was higher in production workers than in office workers(P<0.01). This is particularly true in the shipyard painters, who had the highest level of CEA across job groups.
CONCLUSIONS
The goal of this was to determine if there were differences in serum CEA levels according to occupational role in shipyard workers. Production shipyard workers had relatively higher level of serum CEA than office workers, most likely due to occupational exposure. This serum CEA level is influenced by occupation role. Serum CEA level could be a parameter for evaluating pollutant effects.

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The association between cadmium and lead exposure and blood pressure among workers of a smelting industry: a cross-sectional study
Hyun Chan An, Joo Hyun Sung, Jiho Lee, Chang Sun Sim, Sang Hoon Kim, Yangho Kim
Annals of Occupational and Environmental Medicine.2017;[Epub] CrossRef

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Original Article

The Prevalence of Asbestos Exposure-induced Pleural Thickening on Chest Radiograph in Repairing Shipyard Workers: Byeong Jin Ye, Jung Il Kim, Hyun Jae Lee, Ki Nam Kim, Ki Nam Lee, Kap Yeol Jung, Joon Youn Kim, Sung Ho Yun; Korean Journal of Occupational and Environmental Medicine 2008;20(1):9-14. Published online March 31, 2008; DOI: https://doi.org/10.35371/kjoem.2008.20.1.9

Abstract PDF

OBJECTIVES
This study evaluated the prevalence of asbestos exposure-induced pleural thickening on chest radiograph in repairing shipyard workers.
METHODS
A total of 2,114 incumbent and retired workers in a shipyard underwent chest radiograph, questionnaire study, interview, and physical exam from 2005 to 2007. Finally, 1,702 workers were selected and classified into two groups according to asbestos exposure: exposure and non-exposure groups. The characteristics in the exposure group were investigated.
RESULTS
The prevalence of pleural thickening on chest radiograph was 5.2 % and 3.1 % in the exposure and non-exposure groups, respectively (p<0.05). In those aged 50 years or above, the prevalence was 17.6 % and 8.7 % in the exposure and non-exposure groups, respectively (p<0.05). The prevalence was 16.5 % and 30.2 % and the odds ratio was 2.34 (95% CI; 1.15-4.77) and 2.95 (95%CI; 1.08-8.07) in the workers with an exposure duration of 20-29 years and more than 30 years, respectively. The prevalence was higher when considering tuberculosis history.
CONCLUSIONS
The prevalence was increased with increasing exposure duration was more than 20 years. The authors therefore suggest that this group should be followed up periodically by special program and that a longitudinal study with repairing shipyard workers as the cohort should be undertaken.

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Environmental health centers for asbestos and their health impact surveys and activities
Dong-Mug Kang, Jong-Eun Kim, Yong-Jin Lee, Hyun-Hee Lee, Chang-yeol Lee, Seong-Jae Moon, Min-Sung Kang
Annals of Occupational and Environmental Medicine.2016;[Epub] CrossRef
Health Effects of Environmental Asbestos Exposure
Dong-Mug Kang
Korean Journal of Environmental Health Sciences.2009; 35(2): 71. CrossRef

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Case Report

A Case of Lung Cancer Caused by Long-Term Asbestos Exposure: Dong Young Yoon, Jin Wook Kang, Hyun Jae Lee, Jung Il Kim, Ji Eun Son, Kap Yeol Jung, Joon Youn Kim, Mee Sook Roh; Korean Journal of Occupational and Environmental Medicine 2004;16(4):499-507. Published online December 31, 2004; DOI: https://doi.org/10.35371/kjoem.2004.16.4.499

Abstract PDF

OBJECTIVES
To report a case of lung cancer caused by long-term asbestos exposure in a shipyard.
METHODS
We evaluated chest X-ray, pulmonary function test, and chest CT and analyzed asbestos concentration in the lung tissue and bulk sample from the workplace. We also performed a workplace survey.
RESULTS
The patient had worked at the shipyard for 31 years. The biopsy samples were processed to determine the asbestos content in the lung tissue and bulk sample using a transmission electron microscope (TEM) equipped with an energy dispersive X-ray analyzer (EDX). The TEM-EDX analysis revealed many asbestos fibers, the majority of which were amosite. In addition, the concentration asbestos fibers in the workplace exceeded the occupational exposure limits of asbestos.
CONCLUSIONS
Our findings strongly suggest that this patient's lung cancer was related to the long-term asbestos exposure.

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Gastric and rectal cancers in workers exposed to asbestos: a case series
Byeong Ju Choi, Saerom Lee, Iu Jin Lee, Soon Woo Park, Sanggil Lee
Annals of Occupational and Environmental Medicine.2020;[Epub] CrossRef
Radiologic Diagnosis of Asbestos-Related Lung Cancer
Yoon Kyung Kim, Jeung Sook Kim, Yookyung Kim
Journal of the Korean Society of Radiology.2015; 73(6): 347. CrossRef
Comparison of cancer incidence between production and office workers at a shipyard in Korea: A retrospective cohort study from 1992 to 2005
Kyoung‐Sook Jeong, Yangho Kim, Moon‐Chan Kim, Cheol‐In Yoo
American Journal of Industrial Medicine.2011; 54(9): 719. CrossRef
Occupational Respiratory Cancer in Korea
Hye-Eun Lee, Hyoung Ryoul Kim
Journal of Korean Medical Science.2010; 25(Suppl): S94. CrossRef

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Original Article

Risk Factors Related to Musculoskeletal Symptoms in Shipyard Workers: Byung Chan Park, Hae Kwan Cheong, Soo keun Kim; Korean Journal of Occupational and Environmental Medicine 2003;15(4):373-387. Published online December 31, 2003; DOI: https://doi.org/10.35371/kjoem.2003.15.4.373

Abstract PDF

OBJECTIVES
The aim of this study is to determine the risk factors related to musculoskeletal disorders in shipyard workers.
METHODS
A questionnaire survey was performed on 2,140 shipyard workers in a shipyard in Ulsan city. The questionnaire consisted of questions on the general characteristics, the health behavior, work type and duration, physical burden, job control, type of instruments used, posture, and musculoskeletal symptoms. Definition of musculoskeletal disorders was based on either NIOSH criteria and Kim's criteria.
RESULTS
Positive rate of musculoskeletal disorders in any one part of the body was 77.2% by NIOSH criteria and 60.7% by Kim's criteria. Positive rate of the symptoms increased in workers with longer work hours, with a severe physical burden, and without any control over their job. Work with a more frequent unstable posture and for longer hours was also associated with increased musculoskeletal symptoms. Multiple logistic regression analysis showed that unstable posture and physical burden is closely related to the positive rate of musculoskeletal symptoms after controlling for age, smoking, drinking, exercise, duration of work, and job control; showing a good dose-response relationship.
CONCLUSION
Inadequate posture and physical burden were the most significant factors affecting musculoskeletal disorders in shipyard workers in this study. Therefore, it will be necessary to make efforts to reduce the prevalence of musculoskeletal disorders related to a specific job, instrument, physical burden, and posture. Workers should be educated on the types and prevalence of musculoskeletal disorders, how to improve the ergonomic occupational environment and to set up preventive measures against the risk factors during work.

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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
Risk factors of work-related upper extremity musculoskeletal disorders in male cameramen
Jung ho Kim, Byung seong Suh, Soo Geun Kim, Won sool Kim, You il Shon, Hee seung Son
Annals of Occupational and Environmental Medicine.2015;[Epub] CrossRef
Prevalence of Musculoskeletal Disorders Among Korean Police Personnel
Hak Young Rhee, Jae Hwan Cho, Jong Min Seok, Taek Sang Cho, Woo Jin Jeon, Jin Gu Lee, Sung Kyu Kim
Archives of Environmental & Occupational Health.2015; 70(4): 177. CrossRef
Factors Affecting the Musculoskeletal Symptoms of Korean Police Officers
Taek-Sang Cho, Woo-Jin Jeon, Jin-Gu Lee, Jong-Min Seok, Jae-Hwan Cho
Journal of Physical Therapy Science.2014; 26(6): 925. 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
Ergonomic Research Trends in the Shipbuilding Industry: Present and the Future
Yu-Chang Kim
Journal of the Ergonomics Society of Korea.2012; 31(1): 131. CrossRef
Musculoskeletal Symptoms and Its Related Factors among Male Workers in a Nonferrous Manufacturing Industry
Yeon-Ok Jeong, Young-Chae Cho
Journal of the Korea Academia-Industrial cooperation Society.2012; 13(8): 3552. CrossRef
Survey of the Musculoskeletal Disorders of Riot Police and Conscripted Policeman in Radiologic Examination
Jae-Hwan Cho, Maeng-Jin Kang, Jong-Min Seok, Sung-Joon Jeun, Youn-Shik Lim, Jae-Kyo Jeong, Hyeon-Ju Kim, Myeong-Shik Ju, Kyung-Rae Dong, Cheol-Soo Park, Jin Lee, Hae-Kag Lee
Journal of the Korean Society of Radiology.2011; 5(6): 315. CrossRef
Characteristics of Work-related Musculoskeletal Disorders in Korea and Their Work-relatedness Evaluation
Kun Hyung Kim, Kyoo Sang Kim, Day Sung Kim, Sun Je Jang, Ki Hun Hong, Seung-Won Yoo
Journal of Korean Medical Science.2010; 25(Suppl): S77. CrossRef
Risk Factors of Work-related Upper Extremity Musculoskeletal Disorders in Male Shipyard Workers: Structural Equation Model Analysis
Byung-Chan Park, Hae-Kwan Cheong, Eun-A Kim, Soo Geun Kim
Safety and Health at Work.2010; 1(2): 124. CrossRef

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Original Article

Characteristics of Work-Related Musculoskeletal Disorders and Effect of Intervention Program in Shipyard Workers: Hong Jae Chae, Seong Kwan Lee, Kang Jin Lee, Jai Dong Moon; Korean Journal of Occupational and Environmental Medicine 2002;14(4):468-477. Published online December 31, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.4.468

Abstract PDF

OBJECTIVES
This study was conducted to estimate the characteristics of work-related musculoskeletal disorders and the effect of intervention program in shipyard workers.
METHODS
Information on work related absences,due to musculoskeletal disorders, were collected between January, 1 2000 and August, 31 2002. Age, duration of work, job type, anatomical site of disease, cause and duration of absence due to sickness were investigated.
RESULTS
From a total of 158 cases there were 108(68.4%)and 50(31.6%)cases of back, and other musculoskeletal complaints,respectively. 55(34.8%)of the cases were caused by repetitive trauma and 103(65.2%)were due to non-repetitive causes. 90(83.3%)of the back complaint cases were due to non-repetitive causes, but there was a repetitive cause of other musculoskeletal complaints in 37(74.0%)cases. Back complaints were higher in workers carrying heavy materials, but other musculoskeletal complaints were higher in painting workers.Half of workers after an absence due to sickness had returned to work within 32.0 weeks and 25.4 weeks,in the cases of back and other musculoskeletal complaints, respectively. After the application of an intervention program for musculoskeletal disease, the incidence rate of absence due to work-related musculoskeletal disorders was reduced significantly.
CONCLUSION
The introduction of a musculoskeletal intervention program reduced absences due to work-related musculoskeletal disorders.

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A study on Related Factor and Knowledge of Back Pain in Workers Employed at Cement factory
Gi-Yeol Kim, Jung-Lim Oh, Kyoung-Ok Hwang
Journal of the Korea Academia-Industrial cooperation Society.2015; 16(1): 536. CrossRef
Ergonomic Research Trends in the Shipbuilding Industry: Present and the Future
Yu-Chang Kim
Journal of the Ergonomics Society of Korea.2012; 31(1): 131. 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
Related Factors to Musculoskeletal Discomfort Symptoms on Some Middle·High school Teachers
Jae-Yoon Lee, Byeong-Yeon Moon, Youn-Hong Jeong, Hyun-Kyung Woo
Journal of the Korea Academia-Industrial cooperation Society.2012; 13(1): 264. CrossRef

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Original Article

Characteristics and Affecting Factors of Tinnitus in Noise Exposed Workers: Kyoo Sang Kim, Ho Keun Chung; Korean Journal of Occupational and Environmental Medicine 2002;14(4):436-447. Published online December 31, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.4.436

Abstract PDF

OBJECTIVES
Tinnitus is a relatively common complaint of workers who are exposed to noise. The aim of the study was to investigate the prevalence and characteristics of tinnitus as well as the factors related to the prevalence of tinnitus.
METHODS
A cross-sectional audiologic survey was combined with a questionnaire on tinnitus in a stratified random sample of 246 shipyard workers who had long-term exposure to noise.
RESULTS
Forty seven had tinnitus, giving a prevalence of 19.1 percent. The tinnitus was the here and now in 44.7 percent of cases, bilateral in 51.1 percent, and caused sleep disturbances in 12.8 percent. The prevalence of tinnitus was highest in shipfitters and those with longer exposure duration.The workers with tunnitus had consistently higher hearing thresholds at both high and low frequencies than those with no tinnitus.The workers with tinnitus had a significantly higher prevalence of hearing disorders such as conductive hearing loss, a C5-dip, and NIHL.Multivariative logistic regression indicated that past history of ear disease, working and military service exposure to noise were independently associated with tinnitus. The adjusted odds ratio estimates for tinnitus were 3.0 times greater (95%CI 1.4-6.4) for the group with a past history of ear diseases,2.3 times greater (95%CI 1.0-5.0) for the military noise exposed group,and 4.5 times greater (95%CI 1.8-11.1) for the working noise exposed group.
CONCLUSIONS
The results provide evidence that reports of tinnitus at the time of the annual audiometric testing may be useful in identifying workers at greater risk of developing significant shifts in their hearing thresholds. An awareness of the possible occurrence of tinnitus may encourage workers to cooperate more actively in a company's hearing conservation program.

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A systematic review of the reporting of tinnitus prevalence and severity
Abby McCormack, Mark Edmondson-Jones, Sarah Somerset, Deborah Hall
Hearing Research.2016; 337: 70. CrossRef
The Characterisitics of Tinnitus and Its Relationship to Depression from Tinnitus Acquired from Military Service
Kyoo Sang Kim, Ji Hae Kim, Yong Hun Yoon
Korean Journal of Otorhinolaryngology-Head and Neck Surgery.2012; 55(12): 757. CrossRef
Occupational Hearing Loss in Korea
Kyoo Sang Kim
Journal of Korean Medical Science.2010; 25(Suppl): S62. CrossRef

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Original Article

An Evaluation of the Ventilatory Function in Shipyard Welders Using the Lifetime Cumulative Exposure to Welding Fumes: Chun Hwa Jung, Hyeon Woo Yim, Jung Wan Koo, Chung Yill Park; Korean Journal of Occupational and Environmental Medicine 2002;14(4):364-376. Published online December 31, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.4.364

Abstract PDF: Objectives
This study was conducted to evaluate the ventilatory function in shipyard welders using the lifetime cumulative exposure to welding fumes.
METHODS
Ventilatory function tests were performed on 241 male welders at one large shipyard,exposed to welding fumes for over five years,and was compared to 80 male control subjects. Ventilatory function indices, such as forced vital capacity(FVC), one-second forced expiratory volume(FEV 1), ratio of FEV 1 to FVC(FEV 1%), maximal mid-expiratory flow(MMF), peak expiratory flow rate(PEFR)and maximal expiratory flow at 50 and 75% of expired FVC(FEF50 and FEF75), were obtained by analyzing forced expiratory spirograms and maximal expiratory flow-volume curves that were simultaneously measured by an Impulse ocillometry(IOS)program in the standing position.
RESULTS
FEF50 and FEF75 expressed as a percentage of the predicted values were significantly lower in the exposure group than in the controls, and the MMF tended to decrease.The means of all the ventilatory indices,expressed as percentage of the predicted values, were not significantly increased at the current exposure levels. The MMF, FEF50 and FEF75, expressed as a percentage of the predicted values, were significantly decreased with an increase in exposure duration.Only the FEF75 , expressed as a percentage of the predicted value, was significantly decreased with an increase in the cumulativeexposure to welding fumes(C1). The FEF75, expressed as a percentage of the predicted value, was significantly decreased with an increase in the cumulative exposure to welding fumes(C2). The above parameters were calculated to consider the current exposure level, exposure duration, application of the ventilatory system, production rate, personal protection evice, electrode and welding wire. The MMF and FEF50, expressed as a percentage of the predicted value, tended to decrease. The proportion of workers with abnormal MMF, FEF50 and FEF75 were significantly increased with an increase in the cumulative exposure to welding fumes(C2).
CONCLUSIONS
These findings suggested that the MMF, FEF50 and FEF75 are sensitive and practical indices for the evaluation of the ventilatory function of workers exposed to welding fumes, when the lifetime cumulative exposure(C2) is considered as a factor affecting exposure.

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Original Article

Evaluation of Health Exams on Local Vibration Illness among Shipyard Workers: Yeong Su Ju, Hong Ryul Choi, Mi Kyung Kim, Hong Sohn, Sun Ja Jeon, Sung Il Cho, Hyong Sik Kim; Korean Journal of Occupational and Environmental Medicine 1998;10(4):413-427. Published online December 31, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.4.413

Abstract PDF

A hand-arm vibration syndrome, local vibration illness, occurs in some workers who use hand held vibration tools. It consists of white fingers, diffusely distributed finger neuropathy, pain in the hand and arm, and a small excess risk of osteoarthritis. This study is aimed to identify effective methods to confirm local vibration illness among various health exams, which are mentioned in worker's special health exam regulation. In addition, this study is aimed to quantitatively assess the daily vibration exposure level as a major determinant of vibration illness. The subjects, 46 vibration workers, were selected according to the results of the first special health exam about vibration hazards at shipbuilding industry in 1997. They all had experiences of work related blanching of fingers. Fifteen controls, who had no vibration exposure at all, were also recruited to compare their test results with the results of vibration workers. We adopted 1 subjective and 6 objective tests to evaluate the effectiveness and feasibility for confirming local vibration illness. These tests were history taking of subjective symptoms according to the Stockholm classification, checking blood pressure of finger, checking grasp power, checking finger skin temperature, nail-bed pressing test, vibration perceptional threshold test, and skin prick test for pain perception. Among these, checking skin temperature, nail-bed pressing test, and vibration perception test included cold water provocations. We also estimated some vibration exposure levels of hand held vibration tools by using previously published data from one automobile company. In conclusion, history taking of subjective symptoms according to the Stockholm classification, nail-bed pressing test, and vibration perceptional threshold test were discovered to be effective to diagnose local vibration illness. Furthermore, vibration perceptional threshold on right fingers showed a dose-response relationship to daily vibration exposure levels. The parameter beta was 0.0005(+/-0.0002), and statistically significant by REM (random effects model).

Citations

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Assessment on the Actual Vibration Exposure of Workers Engaging in Vibration Induced Works
Kab-Bae Kim, Eun-Kyo Chung, Ki-Ho You, Jae-Kil Jang
Transactions of the Korean Society for Noise and Vibration Engineering.2012; 22(10): 940. CrossRef

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Original Article

Cumulative Trauma Disorders Among Shipyard Workers and Application of Baseline Checklist for Risk Assessment: Sang Hwan Han, Nam Jong Paik, Donghyun Park, Ki Eon Jang, Myung Hag Lee, Jong Tae Park, Dae Sung Kim, Yeon Sook Lee, Kyung Ja Paik, Young Soo Shin, Dong Bin Song; Korean Journal of Occupational and Environmental Medicine 1997;9(4):579-588. Published online December 31, 1997; DOI: https://doi.org/10.35371/kjoem.1997.9.4.579

Abstract PDF

Cumulative trauma disorders were surveyed in a cross-sectional study of 100 male ship yard workers and 43 male office workers. And baseline checklist for risk assessment of cumulative trauma disorders was applicated in a ship making process. Cases of cumulative trauma disorders were defined using physical examinations and electronic diagnostic methods. Data on demographics, individual factors (medical condition), work organization and psychosocial aspects of work were obtained by questionnaire. Association between the above factors and cumulative trauma disorders were assessed by multiple logistic regression models. 29(29 %) participants of male shipyard workers and 4(9.2 %) study subjects of male office workers met our case definitions for cumulative trauma disorders. The myofascial pain syndrome of neck muscles(12 % of participants) and carpal tunnel syndrome(5 % of participants) were the major two medical conditions in shipyard workers. The odds of male shipyard workers for cumulative trauma disorders to male office workers was 3.15 after adjustment of age(95 % C.I. :2.25-5.44). And the variables such as duration of present job, HIVD condition, and surges in workload were associated at least one of the cumulative trauma disorders in the final models (p<0.05) . This study indicates that work related upper extremity musculoskeletal disorders are relatively common among shipyard workers, and shows that the psychosocial factors is not likely to be related to the occur rences of these disorders in heavy workers. Also we developed baseline checklist for risk assessment of cumulative trauma disorders. The checklist was unique in that its expected users were industrial hygienists and occupational healthing nurses who did not have much ergonomic background and in that it was targeted to Korean workers in various types. As the first application of the checklist, shipyard workers were evaluated.

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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
Symptom Prevalence of Musculoskeletal Disorders and the Effects of Prior Acute Injury among Aging Male Steelworkers
Won‐Jun Choi, Young‐Joong Kang, Ji‐Young Kim, Sang‐Hwan Han
Journal of Occupational Health.2009; 51(3): 273. CrossRef

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Original Article

Welder' Pneumoconiosis of Shipyard and related Factors: Hae Sook Sohn, Seong Yong Choi, Young Jin Yu, Chae Un Lee; Korean Journal of Occupational and Environmental Medicine 1994;6(1):143-152. Published online February 28, 1994; DOI: https://doi.org/10.35371/kjoem.1994.6.1.143

Abstract PDF

Pneumoconiosis is one of the most important occupational disease in Korea. In Pusan, most of pneumoconiosis is welders' pneumoconiosis developed in shipyard. With clinical (including interview with every patients) and radiological (chest radiographs) methods, author purposed to know the factors related to development of pneumoconiosis in shipyard welders and to apply the results to the concept for health care (management) of shipyard welders. The prevalence rate of welders' pneumoconiosis was calculated by the means of reading of chest radiographs of 547 shipyard welders. The prevalence rate of welders' pneumoconiosis (including suspected pneumoconiosis, category 0/1) was 7.9%. It was lower than that (8.9%) in same area studied in 1989. Prevalence rate increased as total welding duration increased and the welding work began early. It was higher in welders who did not use antidust mask. Probability of the occurance of welder's pneumoconiosis was related with the time that the welder began welding work. Sixteen cases among the 37 who were diagnosed as pneumoconiosis returned normal in the follow-up chest radiographs. There was no case aggrevated. The pertinent management for the personnels and their working environment contributed to the decrease of incidence of the welders' pneumoconiosis and the improvement of the disease. To prevent the occurance of the pneumoconiosis in shipyard welders, it seems to be necessary for the company to be supervised under the any legislation and to educate the welder to use the protective apparatus. It is suggested that considerate and continuous observation under the adequate management is preferable to the immediate conversion of the working department for the pneumoconiotic welders.

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Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef

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