Annals of Occupational and Environmental Medicine

Myung Guen Kang

3 Articles

The Assessment of Worker's Health Status by SF-36: Bong Suk Cha, Sang Baek Koh, Sei Jin Chang, Jong Ku Park, Myung Guen Kang; Korean Journal of Occupational and Environmental Medicine 1998;10(1):9-19. Published online February 28, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.1.9

This study was conducted to understand health status by general characteristic, and to find out relationship between social support and worker's health status. Health status was measured using SF-36(Medical Outcome Study Short Form 36), a 36 item self administered Instrument. The finding of this study were as follow; Mean scores of health status by sex were higher in male. The younger worker reported good health on physical functioning and role limitation-physical than did the older worker, but the older worker reported good health on social functioning and mental health. Mean scores of health status were higher in high income and white worker. When the relationship between social support and health status, social functioning, role limitation-emotion, mental health, vitality, general health were significantly related. Therefore we reviewed the evidence that socio-economic condition are associated with health status in this study, and that the strength of the social support was a important to maintain health.

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Difference in health status of Korean farmers according to gender
Ho Lee, Seong-yong Cho, Jin-seok Kim, Seong-yong Yoon, Bu-il Kim, Jong-min An, Ki-beom Kim
Annals of Occupational and Environmental Medicine.2019;[Epub] CrossRef
Association between Body Mass Index and Quality of Life in Elderly People over 60 Years of Age
Gyeongsil Lee, Jiyoung Park, Seung-Won Oh, Hee-Kyung Joh, Seung-Sik Hwang, Jeehyun Kim, Danbee Park
Korean Journal of Family Medicine.2017; 38(4): 181. CrossRef
Relationship between Job Stress and Health Status(SF-36) Among General Hospital Nurses
Yeon-Hee Lim, Young-Chae Cho
Journal of the Korea Academia-Industrial cooperation Society.2015; 16(7): 4745. CrossRef
Health status and related factors in farmers by SF-12
Kyungeun Park, Sooyong Roh, Jihoon Lee, Soon Chan Kwon, Mihye Jeong, Soo-jin Lee
Annals of Occupational and Environmental Medicine.2015;[Epub] CrossRef
The Relationship between Lifestyle and Health Status among White Collar Workers in a Community
Ji-Min Lee, Young-Sook Kwon, Kyung-Shin Paek
Journal of Digital Convergence.2014; 12(8): 411. CrossRef
The Impact of Functional Constipation on the Quality of Life in the Elderly over 60 Years
Hyeok-Kyu Kwon, Hyun-Jin Do, Hye-Jung Kim, Seung-Won Oh, Youl-Lee Lym, Jae-Kyung Choi, Hee-Kyung Joh, Hyuk-Jung Kweon, Dong-Yung Cho
Korean Journal of Family Medicine.2010; 31(1): 35. CrossRef
Quality of Life and its Associated Factors among Some Elderly Residents Using a Hall for the Aged in a Community
Jin-young Lim, Jong Park, Myeong Geun Kang, So Yeon Ryu
Journal of Preventive Medicine and Public Health.2007; 40(5): 337. CrossRef
The 3 years Prognosis of Patients with Long Term Mechanical Ventilation in Medical Intensive Care Unit at a University Hospital
Gyu Rak Chon, Ik Su Choi, Chae-Man Lim, Younsuck Koh, Yeon-Mok Oh, Tae Sun Shim, Sang Do Lee, Woo Sung Kim, Dong-Soon Kim, Won Dong Kim, Sang-Bum Hong
Tuberculosis and Respiratory Diseases.2007; 62(5): 398. CrossRef

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The Metabolism and Liver Toxicity of N, N-dimethylformamide in the Isolated Perfused Liver: Sang Baek Koh, Bong Suk Cha, Myung Guen Kang, Sang Yeol Koh, Jung Woo Lee, Sang Ok Kwon; Korean Journal of Occupational and Environmental Medicine 1997;9(2):217-229. Published online June 30, 1997; DOI: https://doi.org/10.35371/kjoem.1997.9.2.217

Abstract PDF

N, N-dimethylformamide (DMF) is a solvent which is widely used in the industrial workplace. It causes the liver damages to the chronically exposed workers and is also well known as the harzadous material to generate occupational malignancies. DMF is mainly metabolized into N-hydroxymethyl-N-methylformamide (HMMF) by the microsomal cytochrome p-450. HMMF breaks down to NMF. However, the detailed mechanism of its toxicity are unknown. In this experiment, the metabolism and the toxicity of DMF was investigated using an isolated perfumed liver model. DMF (0, 10, 25mM) were added into recirculating perfusate of the isolated perfused rat liver. Samples were collected at 0, 30, 45, 60, 75, 90 minutes from inferior vena cava. The gas-chromatography was used to analyze the metabolite of DMF, The changes in the oxygen consumption rate by DMF were monitored during perfusion. The enzyme activity (AST, ALT, LDH) in the perfusate were treasured to find out whether DMF causers hepatotoxicity. As perfusion continued, DMF concentration in the perfusate decreased, and NMF 1.16mM was detected. The oxygen consumption rate increased both at 10mM and 25mM DMF concentration. However, when SKF 525A, a known inhibitor of cytochrome p-450, had been pretreated (300uM before DMF addition, the oxygen consumption rate was significantly inhibited, indicating that cytochrome p-450 system is responsible for the conversion to NMF. With DMF addition, the activity of AST, ALT, and LDH significantly increased time dependently and dose dependently. However, the pretreatment of perfused liver with SKF 525A shoved that the release of AST, ALT and LDH was inhibited. In summary, it is found that DMF is metabolized to NMF in liver, and that cytochrome p-450 mono-oxygenase is suggested to play a role in the biotransformation of NMF. The time course of BMF toxicity in relation to NMF formation is compatible with hypothesis that the hepatotoxicity of DMF is mediated via NMF. Further study combined with in vivo experiment through the toxicological approaches is expected.

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Clinical Outcomes of Occupational Exposure to N,N-Dimethylformamide: Perspectives from Experimental Toxicology
Tae Hyun Kim, Sang Geon Kim
Safety and Health at Work.2011; 2(2): 97. CrossRef

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Effect of Noise Exposure and Psychosocial Factors on Blood Pressure in Manufacturing Workers: Bong Suk Cha, Sang Baek Koh, Sei Jin Chang, Jung Ku Park, Myung Guen Kang, Sang Yul Koh; Korean Journal of Occupational and Environmental Medicine 1997;9(2):244-257. Published online June 30, 1997; DOI: https://doi.org/10.35371/kjoem.1997.9.2.244

Abstract PDF

This study was conducted to assess the effects of noise exposure and psychosocial factor on blood pressure in manufacturing workers. The study subjects are 414 workers (243 males, 171 females) employed at the noisy department. The mean age of low exposed group (<85dB) was 34.65+/-9.53 years, and that of high exposed group (> or =85dB) was 36.37+/-11.15 years. The difference in mean age wart not significant. The mean and distribution of working duration, smoking status, drinking status were not significantly different between two groups. The mean systolic blood pressure of the low exposed groups was 120.01+/-12.06 mmHg, and that of high exposed group wart 126.27+/-13.84 mmHg. The mean diastolic blood pressure of the low exposed and the high exposed group were 77.18+/-10.83 mmHg, and 83.46+/-11.22 mmHg respectively. These differences of blood pressure were statistically significant(p<0.05). The workers in noisy department have significantly less work environmental satisfaction, higher job demand, and higher social support. The mean values of psychosocial distress were higher in the workers of the noisy department, but the difference was not statistically significant. This study was to speculate whether the work environmental satisfaction and social supports modify the association between the noise exposure level and the blood pressure. The results showed that work environmental satisfaction could not modify the association between the blood pressure and the noise exposure. Social support at work did not modify the association. Furthermore, we evaluated the high job strain from a combination of high job demand and low job control at work. Compared to the low strain group, the olds ratio of the high job strain group for hypertension in diastolic blood pressure were statistically significant, but not in systolic blood pressure. Hierarchical multiple regression analysis was used to determine whether the independent variables contributed to explaining the blood pressure. After controlling for possible confounders, we found that the noise exposure level was a correlate of the diastolic blood pressure. But no association between the noise exposure level and the systolic blood pressure. No significant result was found for psychosocial factor.

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Relationship Between the Psychosocial Factors and Job Stress Among Clerical Public Officers
Ho-Jin Park, Sung-Kyeong Park, Young-Chae Cho
Journal of the Korea Academia-Industrial cooperation Society.2014; 15(9): 5610. CrossRef
Relationships Between Job Stress and Psychosocial Stress Among Nurses in a University Hospital
Sung-Kyeong Park, Jong-Oh Kim, Young-Chae Cho
Journal of the Korea Academia-Industrial cooperation Society.2011; 12(9): 3887. CrossRef

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