purpose: this study was conducted to estimate the prevalence of esteoporosis and to identify the related factors of bone mineral density(BMD) in rural postmenopausal women.
methods: three hundred ninety postmenopausal women in a rural area were examined in 1999. their BMDs of the lumbar spine(L1-L3) were measured by a quantitative computerized tomography(QCT) and their height and weight were measured. a questionnaires interviewing method was used to collect risk factor data.
results : the prevalence of ostoeporosis in postmenopausal women of 40-69 years old was 89.2% by reference value of UCSF(university of california, sanfrancisco), however, changed to 63.1$ by that of korean. from simple analyses, age(p<0.01), duration after menopause(p<0.01), menstrual regularity(p<0.05), delivery frequencies(p<0.01), breast feeding years(p<0.01), alcohol intake(p<0.01), and smoking(p<0.05) were significant risk factors relating to BMD. in multifle linear regression analysis, duration after menopause(p<0.01), menstrual regularity(P<0.05), and breast feeding years(p<0.05) proved to be significant risk factors. however dietary factors and life style were not significantly associated with BMD.
conclusions : the significant risk factors of postmenopausal women in a rural area to BMD were duration after menopause, menstrual regularity, and breast feeding duration.
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