Dietary Soybeans Intake and Bone Mineral Density among 995 Middle-Aged Women in Yokohama

To investigate relationship of dietary factors, especially source of calcium intake, to bone mineral density (BMD) among Japanese middle-aged women, a total of 995 healthy women age of 40 to 49 (mean±SD, 45±3), who lives in Yokohama-city, were recruited through convenience sampling by the municipal...

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Veröffentlicht in:Journal of Epidemiology 1999, Vol.9(1), pp.14-19
Hauptverfasser: Tsuchida, Kenichi, Mizushima, Shunsaku, Toba, Masanori, Soda, Kenji
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creator Tsuchida, Kenichi
Mizushima, Shunsaku
Toba, Masanori
Soda, Kenji
description To investigate relationship of dietary factors, especially source of calcium intake, to bone mineral density (BMD) among Japanese middle-aged women, a total of 995 healthy women age of 40 to 49 (mean±SD, 45±3), who lives in Yokohama-city, were recruited through convenience sampling by the municipal information paper and health announcement at each 18 public health center in 18 wards for the three-day course on prevention of osteoporosis from October 1996 to March 1998. The BMD of the 2nd metacarpal bone was measured using Computed X-ray Densitometry (CXD) method, by a trained radiologist. Dietary intake of calcium was assessed by self-reporting food frequency questionnaire on calcium dietary sources such as milk, dairy products, small fish, vegetables, and soybeans and carefully checked by trained dietician. An independent gradient of non-adjusted and adjusted BMD for age and weekly calcium intake, through soybeans intake frequency (p=0.03) was noted. This study suggest soybeans, through possible beneficial effects of vitamin-K, soyprotein, and isoflavonoid, may affect BMD of middle aged women. J Epidemiol, 1999 ; 9 : 14-19
doi_str_mv 10.2188/jea.9.14
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subjects Adult
Analysis of Variance
Bone Density
calcium
Calcium, Dietary - administration & dosage
Cross-Sectional Studies
Feeding Behavior
Female
Glycine max
Humans
Japan - epidemiology
Middle Aged
nutrition
soybean
Urban Health
title Dietary Soybeans Intake and Bone Mineral Density among 995 Middle-Aged Women in Yokohama
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