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Coffee Consumption and Decreased Serum Gamma-glutamyltransferase Activity in Men of Rural Area.
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Byung Min Son, Byung Mann Cho, Sang Don Lee, Moon Kee Chung, Don Kyoun Kim
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Korean J Epidemiol. 2001;23(1):43-49.
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PURPOSE
There has been various reports on the inverse association between coffee consumption and serum gamma-glutamyltransferase(GGT) activity in the general population of Western countries. However, this association is uncertain in the communities in which coffee consumption is less popular. So we tried to identify this association in men of rural area in Korea.METHODS We examined the association between coffee consumption and serum GGT activity in cross-sectional study involving 379 male population health examinees aged 40 years and older from rural areas in Kyungnam prefecture in Korea.
Those who perceived their health status as poor were excluded. Possible confounding effects of age, body mass index, alcohol consumption and cigarette smoking were controlled by multiple regression analysis and analysis of covariance.RESULTS In multiple regression analysis, serum GGT activity was positively associated with alcohol intake, body mass index(P<0.001) and was negatively associated with coffee consumption(P=0.022), whereas no significant association was observed in cigarette smoking(P=0.094).
Adjusted serum GGT activity level at the coffee consumption level of 0, one and two or more cups a day was 37.6 U/l, 35.9 U/l and 26.8 U/l respectively(Ptrend=0.008).CONCLUSION Decreased serum GGT activity appears to be associated with coffee consumption in men of rural area, and further studies on the interrelationships among coffee consumption, alcohol intake and obesity will be necessary.
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Factors Related to Health Behaviors of the People in an Urban Community: Based on the Health Belief Model.
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Byung Mann Cho
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Korean J Epidemiol. 1999;21(2):151-158.
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Variables derived from the health belief model were studied in relation to practices of health behavior, which was measured in terms of thoroughness. Data were collected from the sample of 984 adults living in A-Gu of Pusan, during in-home interviews using structured questionnaires.
Women practiced more health behaviors than men. The significant negative relationship was found between perceived barriers to health behavior and practices of health behavior in men and women. In addition, emotional support in men and perceived benefits of health behavior in women were also significant predictors of health behaviors.
These findings suggest that in the study population, perceived barriers is the most powerful predictor for practices of health behavior and social support is also important for facilitating positive health behaviors.
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Association of Lifestyle and Hypertension in Rural Population.
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Byung Mann Cho
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Korean J Epidemiol. 1998;20(1):51-59.
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To evaluate the association of individual health-related lifestyle and hypertension in rual population, data from a population sample of 633(257 men and 376 women) aged 40 years and older and residing in a rural area were analyxed cross-sectionally. The data had been collected by personal interview using structured questionnaire during August 1996.
In multivariate analysis, adjusted prevalence rate ration of bypertension increased significantly with increasing amount of coffee drinkin(cups/day) in men(p=0.029) and body mass indes(kh/m2) in women(p=0.013). The level of perceiving his or her own health status was a positive correlate of hypertension in men(p=0.034) and women(p=0.107). Thus, in this population hypertension appears to be associated with coffee drinking in men, body mass index in women and the proportion of awareness of his or her own hypertension seems to be low.
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The relationship of life style and physical health status.
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Byung Mann Cho
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Korean J Epidemiol. 1996;18(1):84-94.
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The relationship of life style and physical health status was examined in a population of 1656 public servants and teachers(1069 men, 587 women) who had a periodic health examination in 1994. The study items of life style were health-related habits including sleeping time, breakfast snacking, regular exercise, alcohol drinking, cigarette smoking and weight status. Physical health status was evaluated by means of tests including systolic and diastolic blood pressure, hemoglobin, fasting blood glucose, serum total cholesterol, serum GOT and serum GPT. The association between life style and age-adjusted physical health status was examined by ridit analysis. Physical health status was better in women and the younger. The life style significantly associated with age-adjusted physical health status were sleeping time, snacking, regular exercise, weight status and alcohol drinking in men, and breakfast, snacking and weight status in women. The higher score of health practices index, the better age-adjusted physical health status in both sexes. These findings suggest the need for further studies including follow-up study, intervention study on the relationship of life style and health status.
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