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KMID : 0379220090290041479
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Journal of Korea Gerontological Society
2009 Volume.29 No. 4 p.1479 ~ p.1500
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Factors Associated with Body Mass Index(BMI) Among Older Adults: A Comparison Study of the U.S., Japan, and Korea
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Yeom Ji-Hye
Kim Jung-Ki
Eileen M. Crimmins
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Abstract
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This study examined BMI distributions among older adults in three different countries: the U.S., Japan, and Korea. The paper also explored differences in the factors predicting BMI in the three countries using three data sets: the U.S. Longitudinal Study of Aging (LSOA II, 8,589 persons), the Nihon University Japanese Longitudinal Study of Aging (NUJLSOA, 2,888 persons), and the Korean Longitudinal Study of Ageing (KLoSA, 2,397 persons). Descriptive analysis and multiple regression were performed. Japanese older adults were somewhat lighter than Koreans with fewer people at
the upper end of the BMI distribution. Distributions of BMI among both Koreans and Japanese are shifted leftward relative to Americans. There is less dispersion in the distribution of BMI for Koreans and Japanese than among Americans. The association between socioeconomic variables and BMI is stronger in the U.S. and Japan than in Korea. Demographic variables are strong predictors of BMI in Korea. In Japan, all health behaviors have significant effects on BMI. It is concluded that the relationships between behavioral, demographical, and socioeconomic factors and BMI are not the
same across countries. Results have policy implications for the involvement of health practitioners in helping older adults to control weight.
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KEYWORD
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Body Mass Index, BMI, older adults, the U. S., Japan, Korea, LSOA 2, NUJLSOA, KLoSA
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