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Jung Wan Koo 5 Articles
Lifestyle and Metabolic Syndrome among Male Workers in an Electronics Research and Development Company.
Jun Pyo Myong, Hyoung Ryoul Kim, Yong Kyu Kim, Jung Wan Koo, Chung Yill Park
J Prev Med Public Health. 2009;42(5):331-336.
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  • 6 Crossref
AbstractAbstract PDF
The objectives of this study were to determine the relationship between lifestyle-implementation and metabolic syndrome in an electronics research and development company, and to provide a foundation for health providers of health management programs for setting priorities. METHODS: From July 1 to July 16, 2008 we carried out a descriptive cross-sectional survey. Consecutive workers of one R & D company in Seoul, Korea (N=2,079) were enrolled in study. A checklist for lifestyle (from the National Health Insurance Corporation) consisted of questions regarding diet, drinking, smoking and exercise. After the survey, researchers obtained data from health profiles for metabolic syndrome(waist-circumference, triglycerides, HDL cholesterol, blood pressure and fasting blood sugar level). Lifestyle was recorded as good or not good. Statistical analysis of metabolic syndrome and the lifestyle of subjects was done using multiple logistic regression analysis. RESULTS: The prevalence of metabolic syndrome in our study gropu was 13.3% (N=277). After adjustment for age, the adjusted odds ratios (odds ratio, 95% confidence intervals) for metabolic syndrome increased in proportion to the number of bad habits: two (1.72, 1.23-2.44), three (2.47, 1.73-3.56), and four (3.63, 2.03-6.34). Relative to subjects eating both vegetables and meat', the OR for 'meat' eaters was 1.66 (1.18-2.31). Compared with 'non-smokers and ever-smoker', the OR for 'current-smoker' was 1.62 (1.25-2.10). Compared with 'Healthy drinker', the OR for 'unhealthy drinker' was 1.38 (1.05-1.83). CONCLUSIONS: Poor lifestyle was associated with an increased likelihood of metabolic syndrome. These findings suggest that lifestyle-based occupational health interventions for young employees should include a specific diet, smoking cessation, and healthy-drinking programs.


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    Hosihn Ryu, Dal Lae Chin
    Archives of Environmental & Occupational Health.2017; 72(5): 249.     CrossRef
  • Relation of Health Promotion Behaviors and Metabolic Syndrome in Daytime Workers
    Dae-Sik Ko, Bu-Yeon Park, Gyeong-Hyu Seok
    The Journal of the Korea institute of electronic communication sciences.2013; 8(12): 1941.     CrossRef
  • Actual Cardiovascular Disease Risk and Related Factors: A Cross-sectional Study of Korean Blue Collar Workers Employed by Small Businesses
    Jong Uk Won, Oi Saeng Hong, Won Ju Hwang
    Workplace Health & Safety.2013; 61(4): 163.     CrossRef
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    Jong Uk Won, Oi Saeng Hong, Won Ju Hwang
    Workplace Health & Safety.2013; 61(4): 163.     CrossRef
  • Prevalence and Associated Risk Factors of the Metabolic Syndrome in the Korean Workforce
    Dae Ryong KANG, Yeongmi HA, Won Ju HWANG
    Industrial Health.2013; 51(3): 256.     CrossRef
Analysis of Cancer Screening Recommendations by Physicians for Various Types of Cancer.
Yong Mun Park, Won Chul Lee, Keun Sang Yum, Jung Wan Koo, Hyeon Woo Yim, Kang Sook Lee, Hoon Kyo Kim
Korean J Prev Med. 2000;33(1):99-108.
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AbstractAbstract PDF
The purpose of this study was to examine the present status of cancer screening recommendations(beginning age, interval, recommended screening methods, etc.) by physicians and analyze the association between physician's characteristics and the content of their recommendations. METHODS: Data were collected from March 1 to April 30 of 1997, and 373 physicians who were from different hospital settings all over Korea were interviewed by telephone about their screening recommendations for stomach, cervical and breast cancer for those who provided cancer screening services. RESULTS: For stomach cancer screening, respondents recommended that cancer screening begin at 40 years of age(57.8%), with a 1 year interval(77.2%), and by gastrofibroscopy (86.2%). For cervical cancer screening, respondents recommended that cancer screening begin at 25 years of age(42.0%), with a 1 year interval(67.8%), and by using a Pap smear(100.0%). For breast cancer screening, respondents recommended that cancer screening begin at 35 years of age(38.7%), with a 1 year interval(57.3%), and by mammography (97.3%). CONCLUSIONS: To establish appropriate cancer screening recommendations for Korea, it may be useful to consider the above results concerning medical care providers.
The Effect of Screening of Stomach Cancer on Stage Shift.
Jung Wan Koo, Won Chul Lee, Cho Hyun Park, Ji Youn Han, In Sik Chung, Nam Sun Paik, Hoon Kyo Kim
Korean J Prev Med. 2000;33(1):25-30.
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  • 25 Download
AbstractAbstract PDF
This study was performed to evaluate the effect of stage shift according to screening of stomach cancer. METHODS: Total 840 cases of stomach cancer patients, undergone a surgical operation at Department of Surgery, Kangnam St. Mary's Hospital, The Catholic University of Korea from Jan. 1989 to Dec. 1995, were reviewed by stomach cancer working sheet, and classified as asymptomatic and symptomatic group based on the presence of subjective symptoms on their hospital visit. Their histopathologic stages were analysed. We compared the histopathologic stages of asymptomatic stomach cancer patients with those of symptomatic patients. RESULTS: From the total of 840 patients, asymptomatic patients group comprised 28 cases (3.3%). Proportion of asymptomatic patients tended to increase from 1.9% in 1990, 0.9% in 1991 to 8.6% in 1995. Proportions of asymptomatic patients by stages were 78.6% (stage I), 3.6% (stage III), 17.9% (stage IV) and that of symptomatic patients by stages were 38.2% (stage I), 16.5% (stage II), 24.8% (stage III), 19.1% (stage IV). In less than 40 years old, 50.5% of symptomatic patients were diagnosed as stage I. With increment of ages, proportions of stage I were markedly decreased. It was significantly different between proportion of early gastric cancer in asymptomatic patients (60.1%) and that in symptomatic patients (25.0%). CONCLUSIONS: We confirmed stage shift according to screening of stomach cancer. And proportion of early gastric cancer in asymptomatic patients was higher than that in symptomatic patients. This results suggest that screening of gastric cancer be important to reduce mortality and it be indirectly started from 40 years old.
The Assessment of Stress between White and Blue Collar Workers by using Psychosocial Well-being Index.
Seong Ouk Hur, Seong Sil Chang, Jung Wan Koo, Chung Yill Park
Korean J Prev Med. 1996;29(3):609-616.
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AbstractAbstract PDF
This study was conducted to evaluate the degree of stress state and the risk factors related to in 967 white collar workers and 275 blue collar workers buy using Psycosocial Well-being Index. The results obtained were as follows: 1. In the white collar workers and blue collar workers, young age, low education and low income groups had high scores of stress, while in white collar workers, female had high scores of stress but in blue collar workers male had high scores of stress. 2. According to psychosocial well-being index, mild stress state were 73.9% and 53.1%, high risk stress state were 8.9% and 44.4%, and healthy state were 17.2 and 2.6% in white collar and blue collar workers respectively. 3. The total stress score was highly associated with the factors of depression, social performance and self-confidence, general well-being and vitality, and sleeping disturbance and anxiety in order. 4. In reliability test of stress factors, Cronbach's coefficients of depression, social performance and self-confidence, general well-being and vitality, and sleeping disturbance and anxiety were 0.89, 0.81, 0.79, and 0.74 respectively. In conclusion, it suggested that age, sex, marital status, income, education, sleeping time, smoking and exercise habit were associated with stress score, all of above factors should considered to occupational health.
Industrial fatigue due to banking operations with VDT.
Jung Wan Koo, Seung Han Lee
Korean J Prev Med. 1991;24(3):305-313.
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  • 26 Download
AbstractAbstract PDF
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.

JPMPH : Journal of Preventive Medicine and Public Health