Korean J Epidemiol.  2002 Dec;24(2):113-120.

Bone Mineral Density and Related Factors of Postmenopausal Women

• Son JH
• Chun BY
• Yeh MH
• Lee KE
• Lee SS
• Lee YS
• Kim BG

Abstract

PURPOSE: This study was conducted to estimate the prevalence of osteoporosis 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. PESULTS: The prevalence of osteoporosis 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 multiple 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 relating to BMD were duration after menopause, menstrual regularity, and breast feeding duration.

Keyword

bone density; postmenopause; risk factors

MeSH Terms

Bone Density*
Breast Feeding
California
Female
Humans
Life Style
Linear Models
Menopause
Osteoporosis
Postmenopause
Prevalence
Reference Values
Risk Factors
Spine
Surveys and Questionnaires