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Socioeconomic Status and the Trajectory of Body Mass Index Among Older Japanese: A Nationwide Cohort Study of 1987-2006.


ABSTRACT:

Objectives

This research analyzed the body mass index (BMI) level and rate of change, and their association with socioeconomic status among older Japanese adults.

Methods

Data came from a national sample of over 4,800 Japanese adults aged 60 and older at baseline, with up to 7 repeated observations over a period of 19 years (1987-2006). Hierarchical linear modeling was used to analyze the intrapersonal and interpersonal differences in BMI.

Results

Average BMI among older Japanese was 22.26 at baseline and decreased with an accelerating rate over time. Relative to those with less education, BMI among older Japanese with more education was lower and it declined linearly at a faster rate over time. In contrast, higher household income at baseline was associated with a higher level of BMI but similar rates of decline over time. Furthermore, we found no evidence for age variations in the SES-BMI linkage as predicted by prior investigators.

Discussion

These findings provide new insights into the complex relationship between socioeconomic factors and BMI, and help to inform the design of health policies and interventions related to weight control among older adults with diverse socioeconomic backgrounds.

SUBMITTER: Murayama H 

PROVIDER: S-EPMC5926508 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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Publications

Socioeconomic Status and the Trajectory of Body Mass Index Among Older Japanese: A Nationwide Cohort Study of 1987-2006.

Murayama Hiroshi H   Liang Jersey J   Bennett Joan M JM   Shaw Benjamin A BA   Botoseneanu Anda A   Kobayashi Erika E   Fukaya Taro T   Shinkai Shoji S  

The journals of gerontology. Series B, Psychological sciences and social sciences 20150110 2


<h4>Objectives</h4>This research analyzed the body mass index (BMI) level and rate of change, and their association with socioeconomic status among older Japanese adults.<h4>Methods</h4>Data came from a national sample of over 4,800 Japanese adults aged 60 and older at baseline, with up to 7 repeated observations over a period of 19 years (1987-2006). Hierarchical linear modeling was used to analyze the intrapersonal and interpersonal differences in BMI.<h4>Results</h4>Average BMI among older Ja  ...[more]

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