Annals of Occupational and Environmental Medicine

Sung Chul Hong

4 Articles

The Association of the Serum Magnesium with Hearing Loss Among Noise Exposed Male Workers: Wan Seoup Park, Jong Young Lee, Sang Jae Jung, Jae Young Yoo, Tae Sung Choi, Sung Chul Hong, Sung Chan No; Korean Journal of Occupational and Environmental Medicine 2000;12(1):12-25. Published online March 31, 2000; DOI: https://doi.org/10.35371/kjoem.2000.12.1.12

Abstract PDF: OBJECTIVES
This study was conducted to investigate that the chronic noise exposure is associated with decreased serum magnesium concentrations and evaluate whether decreased serum magnesium is associated with noise induced hearing loss.
METHODS
One hundred seventy-eight male workers exposed to noise were selected and classified three groups by the degree of hearing loss. Hearing threshold levels were less than 30 dB at 1,000 Hz or less than 40 dB at 4,000 Hz in group I, more than 30 dB at 1,000 Hz or more than 40 dB at 4,000 Hz and 15 dB and less of pure tone average(PTA: (500 Hz+1,000 Hz+2,000 Hz)/3) in group II, more than 30 dB at 1,000 Hz or more than 40 dB at 4, 000 Hz and over 15 dB of PTA in group III.
RESULTS
Serum magnesium concentrations were 2. 42+/-0. 26 nc/dt in group I, 2. 35+/-0.23 mg(dl in group II, 2.26+/-0.24 ne/dl in group III, respectively and significantly different between group I and group III (p<0. 01). It was negatively correlated with duration of the noise exposure as correlation coefficient(r) of -0.194 (p<0.05). Analysis of the multiple regression on hearing threshold levels showed that serum magnesium, diastolic blood pressure, duration of the noise exposure were statistically significant at 4,000 Hz(p<0.05). While only age was statistically significant at 1,000 Hz(p<0.05).
CONCLUSIONS
These results suggest that chronic noise exposure may induces decrease in serum magnesium concentrations and that its decreased concentration is related with noise induced hearing loss.

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The Relationship between Worker's Health Status and Work Ability Index in Small Scale Factories: Young Ha Lee, Sung Chul Hong, Jong Young Lee; Korean Journal of Occupational and Environmental Medicine 1998;10(2):149-160. Published online May 31, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.2.149

This research was carried out to determine the relationship between worker's health status and work ability index in small scale factories. The data were gathered from 330 workers of Gumi industrial complex, from February to March, 1996. In this study, as questionnaire for the assessment of work ability, We used the work ability index which was developed by Institute of Occupational Health in Finland. The results of the study were summarized as follows; 1) Work ability index was poor in shift work group, more than 9 hours work group, irregular diet group, and stress sensitive group (p<0.01). There were no evident trends of work ability index in sex, marital status, educational level, obesity index, exercise, alcohol drinking and smoking. 2) As comparing work ability index with worker's health status, work ability index was poor in visual correction needed group, urine sugar positive group, and abnormal ALT & AST group (p<0.01) There were no evident trends of work ability index in hearing capacity, blood pressure, hematocrit and urine protein. 3) In the ANOVA was performed to examine the relationship between work ability index and significant factors above 1) and 2). shift work, work hours, diet, stress sensitive and health status were still statistically significant (p<0.05) on work ability index.

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Trace of Occupational History on Lung Cancer Patients: Doo Hie Kim, Ji Yeon Son, Wan Seoup Park, Sung Chul Hong, Jong Young Lee; Korean Journal of Occupational and Environmental Medicine 1995;7(2):219-229. Published online October 31, 1995; DOI: https://doi.org/10.35371/kjoem.1995.7.2.219

Abstract PDF

The relationship between occupation and risk of lung cancer was analyzed in hospital based case-control study conducted in Taegu on 168 patients with histologicatly confirmed lung cancer and age group (30-39, 40-49, etc) and sex frequency-matched 168 controls admitted into hospitals for other internal medicine problems. A self administered questionnaire was used to obtain occupation, resident environment, smoking histories and specific agent exposure histoy. The conditional logistic regression was used to estimate odds ratio for age group and sex frequency matched, after controlling for smoking status (non smoker, exsmoker, current smoker) Significant association was observed for farmer[odds ratio(OR), 1.84 , 95% confidence interval(CI), 1.16-2.94], briquette stove users(OR, 3.0 , 95% CI, 1.06-8.25), agricultural chemicals users[0R, 2.14 , 95% CI, 1.35-3.37], and welding/fume exposures[0R, 10.56 ;95% CI, 1.07~103.90]. Although there were elevated risks associated with production, home industry, transportation/storage/communication, lodgement/food worker and construction, none were statistically significant.The effect of smoking was showed significantly increased risk for exsmoker [0R, 4.50 ,95% CI, 1.99-10.16] and current smoker [OR, 3.98 , 95% Cl, 1.88-8.45] As results, although smoking is important risk of lung cancer, occupation and resident environment are showing association of lung cancer. So further evaluation is necessary for occupation risk and take preventive measures.

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Occupational Cancers with Chemical Exposure and their Prevention in Korea: A Literature Review
Kyung-Taek Rim
Asian Pacific Journal of Cancer Prevention.2013; 14(6): 3379. CrossRef

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Complex effect of low blood lead and cadmium to plasma renin activity and blood pressure: Doo Hie Kim, Soon Woo Park, Duk Hee Lee, Bong Ki Jang, Sung Chul Hong, Dong Chan Kim; Korean Journal of Occupational and Environmental Medicine 1993;5(1):128-136. Published online February 28, 1993; DOI: https://doi.org/10.35371/kjoem.1993.5.1.128

Abstract PDF

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Pollutant levels in ambient air and blood in Korea
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Environmental Health and Preventive Medicine.1996; 1(1): 33. CrossRef

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