- The Effect of Alcohol on the Blood Lipid Level of Korean Adult Men.
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Chung Yill Park, Yun Chul Hong, Seung Han Lee
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Korean J Prev Med. 1992;25(1):44-52.
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 Abstract
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- This study was conducted to evaluate the relations between alcohol intake and blood lipid level in a group of 1,138 Korean adult men, ages 20 to 69 years. Total number of each of a variety of drinks in the previous two weeks was obtained by questionnaire and converted into grams of alcohol consumed in a week. The levels of blood lipid such as Cholesterol, HDL-Cholesterol, Triglyceride and LDL-Cholesterol were examined by enzyme method. We also observed the effects of various variables such as age, body mass index, smoking, exercise and blood pressure on blood lipid level. The results obtained were as follows; 1. Average weekly alcohol intake was 129.0+/-167.4 gm and that of 30-39 age group was the highest as 149.3+/-170.4gm. 2. Levels of Cholesterol, Triglyceride and LDL-Cholesterol tended to increase with increasing age, but level of HDL-Cholesterol showed no significant relationship with age. 3. The positive linear regressions of alcohol intake on HDL-Cholesterol and Triglyceride were noted statistically significant. 4. Multiple regression analysis demonstrated that the effect of alcohol on HDL-Cholesterol and Triglyceride was statistically significant and the contribution rates were 5.0% and 0.8%, respectively. And, in the case of HDL-Cholesterol, the alcohol intake was the most significant independent variable.
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Summary
- Industrial fatigue due to banking operations with VDT.
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Jung Wan Koo, Seung Han Lee
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Korean J Prev Med. 1991;24(3):305-313.
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Abstract
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- In order to investigated industrial fatigue due to visual display terminal (VDT) work of banking operations, the questionnaires survey for subjective symptoms of fatigue was carried out on 470 bank clerks who had been engaged in VDT work for various length of work hours. The questionnaires comprised three groups of 10 items each, representing dullness and sleepiness (level of cerebral activation), difficulty in concentration (level of motivation) and bodily projection of fatigue. The results were as follows: 1. Of the 30 items of questionnaires, the highest percentage was accounted for by 'eye strain' (51.5%), followed by 'feel stiffness in the neck or the shoulders' (33.4%), 'feel a pain in the low back' (26.8%), 'whole body feels tired' (19.6%) and 'feel headache' (17.9%) in the order of sequence. 2. Ten average weighted score for the first group of questionnaire items (dullness and sleepiness) was the largest among three groups and was followed by the third group (bodily projection of fatigue) and the second item group (difficulty in concentration) in the order of sequence, suggesting the heavier mental stress of VDT work in banking operations rather than physical burden. 3. In terms of the age and sex of workers, work duration and VDT work percentage, the difference in average weighted score was noted only between sex, the score of female being larger than that of male. 4. The complaint rates of subjective symptoms showed close associations with the subjective optimums of room temperature, ventilation, illumination and noise level. 5. The significant correlation was showed between age, work duration and item of 'whole body feels tired', between VDT work percentage and items of 'eye strain' and 'feel stiffness in the neck or shoulders' and between all items of subjective symptoms.
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Summary
- A Study on the Epedemiological Characteristics of Industrial Ocular Injuries.
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Won Chul Lee, Sang Moon Chung, Kang Sook Lee, Kwang Ho Meng, Seung Han Lee
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Korean J Prev Med. 1988;21(1):113-120.
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- A total of 181 cases of industrial ocular injuries hospitalized and treated at the St. Mary's Hospital, Seoul during the 5-year period was studied on their epidemiological characteristics. Of there patients 96.7% were males, and 43.6% were in twenties, 49.7% of the cases were injured on left eyes. There were no statistically significant differences in frequencies of study subjects by day of the week and month of the year. Most common injury hour were between 10- < 12 AM(13.6%) and between 2- < 4 PM(20%). Of the total 101 cases, 37.6% were working less than 6 months, and 73.7%, less than 2 years. Of the total, 42.3% were involved in machinery work and 13.9%, in construction work. According to the American National Standard Method of recording basic facts relating to the nature and occurrence of work injuries, 62% among all source of injuries was metal item and the most common accident type was struck by flying objects(76.2%). Among 181 cases, only 2 cases wearing protective equipment when the accidents occurred.
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