Prevalence and correlates of obesity among the oldest old. A systematic review, meta‐analysis and meta‐regression

摘要

Thus far, the prevalence and correlates of obesity among the oldest have been identified in several studies. Nevertheless, there is a lack of a systematic review, meta‐analysis and meta‐regression synthesizing the existing observational studies. Consequently, our aim was to fill this knowledge gap. Three electronic databases were searched (Medline, PsycINFO, CINAHL) and an additional hand search was performed. Observational studies (both, cross‐sectional and longitudinal) determining the prevalence and (preferably) the correlates of obesity in the oldest old (≥80?years) were included. Data extraction covered study design, measurement of obesity, analytical approach, sample characteristics and main results. In total, 19 studies were included. Reported prevalence of obesity in the community varied greatly (range 0.7%–71.5%). The pooled prevalence of obesity was 17.8% (95% CI: 13.3%?22.2%), with significant heterogeneity between studies (I2?=?99.7%, P?