Journal
JOURNAL OF NUTRITION HEALTH & AGING
Volume 21, Issue 10, Pages 1254-1258Publisher
SPRINGER FRANCE
DOI: 10.1007/s12603-016-0837-4
Keywords
BMI; mortality; elderly
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To assess BMI range with the lowest mortality for those aged < 65 years and those > 65 years, utilising cohort studies that spanned the entire adult age range. A two-stage random effects meta-analysis of studies that reported mortality in cohorts both ae65 years and < 65 years. Community living adults aged ae65 and < 65 years. Eight studies were included with a total of 370 416 subjects (306 340 aged < 65 years; 64 076 ae65 years). In the older age group, mortality risk increased at BMIs lower than 22 (BMI range 21.0-21.9: hazard ratio (HR) (95% confidence interval (CI)): 1.05 (1.03, 1.07)), which was not seen in younger adults. In the younger group, mortality increased from BMI range 28.0-28.9 (HR (95% CI): 1.13 (1.00, 1.29)), but mortality did not tend to increase significantly in the older group at BMIs above 23. The recommended healthy weight range is appropriate for younger and middle aged adults but a higher BMI range should be recommended for older adults based on mortality.
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