Journal Article

Determining the Prevalence of Osteoporosis and Related Factors using Quantitative Ultrasound in Vietnamese Adult Women

Vu Thi Thu Hien, Nguyen Cong Khan, Nguyen Thi Lam, Le Bach Mai, DucSon NguyenTrung Le, Bui Thi Nhung, Masayo Nakamori, Daisuke Kunii, Tohru Sakai and Shigeru Yamamoto

in American Journal of Epidemiology

Published on behalf of Johns Hopkins Bloomberg School of Public Health

Volume 161, issue 9, pages 824-830
Published in print May 2005 | ISSN: 0002-9262
Published online May 2005 | e-ISSN: 1476-6256 | DOI: http://dx.doi.org/10.1093/aje/kwi105
Determining the Prevalence of Osteoporosis and Related Factors using Quantitative Ultrasound in Vietnamese Adult Women

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In 2003, the authors conducted a population-based, cross-sectional survey to determine the prevalence of osteoporosis and related factors in Vietnamese adult women by using quantitative ultrasound at the heel bone (calcaneus). A total of 2,232 adult women aged ≥20 years, living in Hanoi City, and free of illnesses affecting bone metabolism were randomly selected to participate in the study. Subjects' bone mass was assessed by speed of sound at the calcaneus, referred to as quantitative ultrasound measurement. The T-score threshold, defined as ≤−1.8, was used to identify subjects with osteoporosis. The crude prevalence of osteoporosis in Hanoi City was 15.4%; after adjustment for age, it was 9.0%. Among premenopausal women, the crude prevalence of osteoporosis was higher in the urban areas compared with the rural areas. By contrast, postmenopausal women in the rural areas had a higher prevalence of osteoporosis. Multiple logistic regression analysis revealed that factors associated with low speed of sound were age, menopause, educational level, lifelong occupation, recreational weight-bearing exercise, number of births, and height. Results suggest that osteoporosis is a noteworthy problem in Vietnam, and intervention strategies should be considered to control it, especially in high-risk populations.

Keywords: cross-sectional studies; osteoporosis; risk factors; ultrasonics; Vietnam; QUS, quantitative ultrasound

Journal Article.  4835 words.  Illustrated.

Subjects: Public Health and Epidemiology

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