Annals of Occupational and Environmental Medicine

Seung Han Lee

13 Articles

Health Classification of Workers in Special Medical Examinations: Seung Han Lee, Won Chul Lee, Hyoung Ah Kim, Seung Sil Chang; Korean Journal of Occupational and Environmental Medicine 1994;6(2):289-301. Published online September 30, 1994; DOI: https://doi.org/10.35371/kjoem.1994.6.2.289

Abstract PDF: The findings of special medical examinations are not infrequently summarized in the form of health classification. This procedure seems valuable for the protection of workers'health from personal health as well as public health point of view, because health classification of workers provides occupations health workers with birds eye view informations in terms of medical, placement and educational procedures, which are to be followed after medical examinations. In this study, the authors have reviewed the existing systems of special medical examinations and Health classifications in different countries and those recommended by international organizations for the purpose of improving the current system in Korea. The important issues covered in this review in relation to health classification of workers included the categories of diseases, the examination and laboratory tests, the criteria for health level classification and the health instructions to be given at each health levels. It was found that the current health classification system in Korea could be featurea as follows : 1. Special medical examinations are always carried out in combination with general medical examinations, contributing to the detection of risk factors of occupational diseases. 2. The selection of examinees is always made on the basis of work environment monitoring, often resulting in the underdetection of exposed workers. 3. Even if the test items are properly selected according to the principles of occupational medicine, further review is required in the light of recent advances in the pathogenesis as well as early changes of occupational diseases and epidemiologic principles. 4. The criteria for the classfication of health levels are to be reviewed on the basis of clinical epidemiology. 5. The health instructions covered only medical and placement aspects, failing to introduce the concept of health promotion.

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A study on component analysis of organic solvents and their health effect: Young Man Roh, Se Hoon Lee, Hyun wook Kim, Kwang Mook Lee, Chee Kyung Chung, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1993;5(1):88-103. Published online February 28, 1993; DOI: https://doi.org/10.35371/kjoem.1993.5.1.88

Abstract PDF

No abstract available.

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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

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Factor pattern of early diagnostic findings in coalworker' pneumoconiosis: Young Lim, Im Goung Yun, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1992;4(1):45-51. Published online February 29, 1992; DOI: https://doi.org/10.35371/kjoem.1992.4.1.45

Abstract PDF: No abstract available.

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Manganese exposure in ore crushing: Chung Yill Park, Young Man Roh, Jung Wan Koo, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1991;3(1):111-118. Published online February 28, 1991; DOI: https://doi.org/10.35371/kjoem.1991.3.1.111

Abstract PDF

No abstract available.

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Compensation for Occupational Diseases by Chemical Agents in Korea
Soon-Chan Kwon, Soo-Yong Roh, Ji-Hoon Lee, Eun-A Kim
Journal of Korean Medical Science.2014; 29(Suppl): S78. CrossRef
Occupational Neurologic Disorders in Korea
Yangho Kim, Kyoung Sook Jeong, Yong-Hun Yun, Myoung-Soon Oh
Journal of Clinical Neurology.2010; 6(2): 64. CrossRef
Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef

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Distribution form of accommodative near point: Jung Wan Koo, Ja Young Lee, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1991;3(1):92-97. Published online February 28, 1991; DOI: https://doi.org/10.35371/kjoem.1991.3.1.92

Abstract PDF: No abstract available.

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A Survey on the Air Pollution of Expressway Tollgates in Korea: Young Man Roh, Chung Yill Park, Chee Kyung Chung, Kwang Mook Lee, Byung Ki Min, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1990;2(2):142-152. Published online August 31, 1990; DOI: https://doi.org/10.35371/kjoem.1990.2.2.142

Abstract PDF: This survey was carried out from October 16 through October 27, 1989 to evaluate the working environment of expressway tollgate. We measured and analyzed 9 parameters such as total dust, sulfur dioxide, carbon monoxide, nitrogen dioxide and lead in the air together with climatic conditions and traffic volumes at 10 major highway tollgates. The results obtained were as follows: 1. The concentrations of air pollutants at inside and outside of toll booth were 0.7824 and 1.5460 mg/m3 for total dust, 0.034 and 0.094 ppm for sulfur dioxide, 2.2 and 4.3 ppm for carbon monoxide, 0.031 and 0.068 ppm for nitrogen dioxide, 0.0018 and 0.0027 mg/m3 for lead, respectiveively. 2. All air pollutants showed significant association each other except lead and nitrogen dioxide. 3. No relation was observed between air pollutants and traffic volume. 4. Generally speaking, climatic conditions showed no effect on the value of air pollutants both at inside and outside of toll booth. The exceptions were humidity that was related with carbon monoixide outside and air current that was related with lead outside.

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Lead Exposure of Tollgate Workers on Korea Expressway: Chung Yill Park, Jung Wan Koo, Young Man Roh, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1990;2(2):134-141. Published online August 31, 1990; DOI: https://doi.org/10.35371/kjoem.1990.2.2.134

Abstract PDF

In order to evaluate possible effects of lead exposure, lead absorption and subjective symptoms in the expressway tollgate workers, 147 workers who have benn working at 4 expressway tollgates werer studied. Study variables were blood lead(PbB), urine lead(PbU), delta-aminolevulinic acid in urine (ALAU), coproporphyrin in urine (CPU), zinc protoporphyrin in whole blood (ZPP), hemoglobin, hematocrit, red blood cell count and symtom index of lead exposure. Subjective symptoms, 16 items, were investigated by a physician's interview. The results were as follows: 1. The most prevailing subjective symptom related to lead exposure were reported fatigue (41.5%), follow by abdominal discomfort (26.5%), loss of appetite (23.8%) and numbness (21.0%). 2. The mean air concentrations of lead at inside and outside of tollbooth were 6.8 (0.2~17.9) and 4.8 (0.2~17.5) microgram/m3, respectively. 3. The mean values of lead absorption indices (blood lead, urine lead, delta-aminolevulinic acid, coproporphyrin in urine and zinc protoporphyrin in blood) of workers were 19.99 (4.2~38.9) microgram/ dl, 29.82(6.3~68.6) microgram/l, 1.04(0.17~3.41) mg/l, 30.30(11.6~58.0) microgram/l and 10.51(1.0~31.0) microgram/l, respectively. And the mean values of hemoglobin, hematocrit and red blood cell count were 15.41 (10.2~18.9)g/dl, 45.88(33.9~54.7)%, 497.37(415~591)x10(4)/mm3, respectively. 4. The mean number of positive responses to subjective symptoms(16 items) was 2.08(13%) and tended to decrease with increasing work duration and age. 5. The number of positive responses of subjective symptoms did not show dose-response relationship with lead absorption indices.

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Effect of Pork Consumption on Renal and Hematochemical Indices in Workers Occupationally Exposed to Unclean Environments
Chan-Kyu Han, Jeong-Hae Rho, Bog-Hieu Lee
Korean Journal for Food Science of Animal Resources.2008; 28(1): 91. CrossRef

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Cervicobrachial Disorders of Female International Telephone Operators IV. Laboratory studies: Chung Yill Park, Kyung Hwan Cho, Seung Han Lee, In Kim; Korean Journal of Occupational and Environmental Medicine 1990;2(1):50-57. Published online February 28, 1990; DOI: https://doi.org/10.35371/kjoem.1990.2.1.50

Abstract PDF

Twenty eight workers selected through our screening criteria were placed under laboratory and orthopadic studies. The results were as follows : 1. The work duration of a subjects, except one case, amounted to more than 5 years. 2. Serum creatinine phosphokinase and aspartate aminotransferase showed significant linear association with positive questionnaire responses. 3. It was suggested rbaf muscle enzyme, rheumatoid factor, cervical radiogram and orthopaedic physical examination are quite helpful in the diagnosis occupational cervicobrachial disorders. However, the value of elect romyographic study was questioned. 4. Finally, it was found 9 out of 290 female international telephone operators needed active intervention in health management as well as work.

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Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
Eun-A Kim, Minori Nakata
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef

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Cervicobrachial Disorders of Female International Telephone Operators III. Grip Strenghth: Kyung Hwan Cho, Chung Yill Park, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1990;2(1):44-49. Published online February 28, 1990; DOI: https://doi.org/10.35371/kjoem.1990.2.1.44

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The grip strength of both hands in 290 female international telephone operators were measured and the relationships between thd grip strength in the major hand and various variables, such as height, weight, age^ subjective symptoms, muscle tenderness, work duration and house work, were observed. The results were as follows: 1. Grip strength was signficantly higher in the rriapr hand than in ihe minor hand. 2. Significantly tower grip strength in the major hand was noted in the musculoskeletal complainants than En the non-complainants. 3. Grip strength in the major hand was signficantly lower In myalgia subjects than in others. 4. Grip strength in the major hand showed significant negative correlation with 'A' response on questionnaire items and number of tender points. 5. Grip strength in the mapr hand showed significant positive correlation with body weight. 6. According to stepwise multiple regression procedures, three major factors, namely, number of 'A' response on questionnaire items, number of tender points and body weight, explained only less than 7% of total variance of grip strength in the major hand.

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A Study on Factors Related to Grip and Pinch Strength among Estheticians
Jeong Hwa Kim, Young Gyu Phee, Sa-Woo Lee
Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(4): 554. CrossRef
Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
Eun-A Kim, Minori Nakata
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef

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Cervicobrachial Disorders of Female International Telephone Operaiors II. Muscle Tenderness and Neurological Tests: Kyung Hwan Cho, Chung Yill Park, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1989;1(2):151-159. Published online November 30, 1989; DOI: https://doi.org/10.35371/kjoem.1989.1.2.151

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Physical examinations including muscle tenderness and neurological tests, were performed on two hundred ninety international telephone operators and their relations with work conditions and subjective symptoms were analyzed. The results obtained were as follows: 1. The prevalence of muscle tenderness was significantly higher in the shoulder and the arms than in other parts of body. 2. No difference of prevalence of muscle tenderness was noted according to the age of workers. 3. The prevalence of muscle tenderness on the shoulder and the arms significantly increased after the work duration of 5 years. 4. Muscle tenderness on the arm, the neck and the shoulder were dominant in the right side. 5. The prevalences of paraesthesia on right shoulder and right arm were higher than those on other parts of body. 6. A significant linear association was noted between the number of tender areas and positive response to questions. 7. The prevalences of positive Spurling test and Morley test were higher in the work duration group of 15 years and more. 8. It seemed that muscle tenderness examination and Morley test were more useful for the diagnosis of cervicobrachial disorders.

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Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
Eun-A Kim, Minori Nakata
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef

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Cervicobrachial Disorders of Female International Telephone Operators I. Subjective Symptoms: Chung Yill Park, Kyung Hwan Cho, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1989;1(2):141-150. Published online November 30, 1989; DOI: https://doi.org/10.35371/kjoem.1989.1.2.141

Abstract PDF

A questionnaire study was carried out on 290 international telephone operators to find Out their characteristics of musculoskeletal symptoms in relation to work conditions (work posture, work load etc.) and work duration.
Results
were as follows: 1. The C7-earhole angle, the elbow angle, the left arm abduction angle and the right arm abduction angle all did not meet the recommended criteria and, therefore, seemed to have increased the static load of muscles of the neck, the shoulder and the arms. 2. The prevalence of musculoskeletal complaints was higher in the shoulder and the arms which followed by the neck, the lower hack, the hands and fingers, the hack and the lower limbs. 3. The prevalences of musculoskeletal complaints in the hack and the lower hack increased significantly, as the work duration extended over 5 years. 4. In general, the prevalence of musculoskeletal complaints tended to be lower among habitual exercise group than others. 5. In view of the high prevalence of musculoskeletal complaints even among those with short work experience, it seemed necessary to introduce an adequate control program of cervicobrachial disorders from an early stage of employment.

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Relationship between simultaneous exposure to ergonomic risk factors and work-related lower back pain: a cross-sectional study based on the fourth Korean working conditions survey
Jae-Yeop Kim, Ji-Su Shin, Myeong-Seob Lim, Hyeon-Gyeong Choi, Sung-Kyeong Kim, Hee-Tae Kang, Sang-Baek Koh, Sung-Soo Oh
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef
Change in Musculoskeletal Pain in Patients With Work-Related Musculoskeletal Disorder After Tailored Rehabilitation Education: A One-Year Follow-Up Survey
Dong Hun Lee, Boram Kang, Seungyoung Choi, Taikon Kim, Seong Ho Jang, Kyu Hoon Lee, Mi Jung Kim, Si-Bog Park, Seung Hoon Han
Annals of Rehabilitation Medicine.2015; 39(5): 726. CrossRef
Work-related Musculoskeletal Disorders in Korea Provoked by Workers’ Collective Compensation Claims against Work Intensification
Dongmug Kang, Youngki Kim, Young-Il Lee, Sangbaek Koh, Inah Kim, Hoonkoo Lee
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
Subjective symptoms in musculoskeletal and preventive actions of Dental technicians in Daegu Metropolitan City
Eun-Jin Jang, Young-Dae Bark
Journal of Korean Acedemy of Dental Technology.2014; 36(4): 257. CrossRef
Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
Eun-A Kim, Minori Nakata
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
Risk factors of musculoskeletal symptoms in university hospital nurses
Eunkwang Ryu, Byeongjin Ye, Youngil Yi, Jungwon Kim
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
The Study on Computer Workstation, Rest and Musculoskeletal Symptoms in High School Students
Tae-Hyung Yoon, Tae-Hyun Cha, Sang-Hui Hwang
Journal of the Korea Academia-Industrial cooperation Society.2012; 13(7): 3037. CrossRef
Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef
The change of knowledge, attitude and practice on musculoskeletal diseases after exercise program in an electronic parts manufacturing company
Jung-Wan Koo, Ki-Yang Kim
International Congress Series.2006; 1294: 143. CrossRef
Results of a survey on the awareness and severity assessment of upper-limb work-related musculoskeletal disorders among female bank tellers in Korea
Myung Hwan Yun, Yun Geun Lee, Hong Jun Eoh, Sang Hyuk Lim
International Journal of Industrial Ergonomics.2001; 27(5): 347. CrossRef

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Relations Between Alcohol Intake and Certain Liver Function Teats in Healthy Adult Male White Color Workers: Chung Yill Park, Won Chul Lee, Chee Kyung, Im Goung Yun, Seung Han Lee; Korean Journal of Occupational and Environmental Medicine 1989;1(1):127-139. Published online February 28, 1989; DOI: https://doi.org/10.35371/kjoem.1989.1.1.127

Abstract PDF: We analysed the multivariate relationship between alcohol intake and serum gamma glutamyl-transpeptidase(S-GGTP), aspartate aminotransferase(S-ASAT), alinine aminotransferase(S-ALAT) and age. A group of 1,351 healthy male white color workers aged 18 to 59 years were systematically examined. Weekly alcohol intake and duration was obtained by an interview. The results are as follows: 1. Weekly alcohol intake of 18-29 age groups was significantly less than that of other age group each. And no differences between other age groups can be seen. 2. Statistical analysis of variance showed that the differences found between the various drinking groups was significant for the mean S-GGTP, S-ASAT(P<0.01). 3. From the weekly alcohol intake 180-269 g group, significantly higher values of S-GGTP was found, whereas S-ASAT and S-ALAT were not. 4. Statistical chi-square trends test showed that the difference found between the various drinking groups was significant for the percentage of abnormal S-GGTP, S-ASAT and S-ALAT (P<0.01). 5. Fifty-five percent of the raised values of S-GGTP found between had no identifiable clinical or biochemical abnormality apart from a raised S-GGTP. Fifty-six percent of these otherwise normal subjects came from 31.7% who were moderate or heavy drinkers. It is suggested that the determination of S-GGTP might have value as a screening test for alcoholism. 6. Significant correlations have been found between weekly alcohol intake and corresponding S-GGTP, S-ASAT and S-ALAT values, 0.33, 0.20 and 0.26. respectively. 7. Multiple regression analyses confirmed the superiority of S-GGTP over S-ALAT and S-ALAT as a laboratory marker of alcohol intake and showed the advantage of using S-GGTP and S-ALAT together.

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Causative Factors of Occupational Injuries in Manufacturing Industries in Korea: Seung Han Lee, Chung Yill Park, Chee Kyung Chung, Kyu Sang Cho; Korean Journal of Occupational and Environmental Medicine 1989;1(1):109-126. Published online February 28, 1989; DOI: https://doi.org/10.35371/kjoem.1989.1.1.109

Abstract PDF: No abstract available.

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