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- Title
The Curvilinear Effect of BMI on Functional Health - Evidence of the Long-Running German Ageing Survey.
- Authors
Hajek, André; König, Hans-Helmut
- Abstract
Aims: We aimed at determining the effect of BMI on functional health among older Germans longitudinally. Methods: Data from four waves (2002-2014) of the German Ageing Survey ('Deutscher Alterssurvey'; DEAS), a representative sample of community-dwelling individuals aged 40 years and above, were used. Functional health was quantified by the subscale 'physical functioning' of the 36-Item Short Form Health Survey (SF-36). Fixed effects regressions were used to estimate the predictors of functional health. Linear, quadratic, and cubic terms were included for BMI (self-reported). Results: Fixed effects regressions showed significant linear, quadratic, and cubic effects of BMI on functional health in the total sample and in both sexes. Furthermore, regressions revealed that functional health decreased with increasing age in the total sample and in both sexes. In addition, changes in marital and employment status were significantly associated with changes in functional health in men, but not in women. Conclusion: Our data indicate that the greater the extreme of BMI (either higher or lower), the greater the risk for functional decline. Nutrition programs aimed at preventing changes to extreme BMI might be productive.
- Subjects
GERMANS; CURVILINEAR motion; BODY mass index; OBESITY risk factors; INSOMNIA risk factors; HEALTH; PHYSIOLOGY
- Publication
Obesity Facts: The European Journal of Obesity, 2017, Vol 10, Issue 3, p252
- ISSN
1662-4025
- Publication type
Article
- DOI
10.1159/000471486