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Cohort study
Being overweight in adults aged 70–75 is associated with a reduction in mortality risk compared with normal BMI
  1. María M Corrada1,
  2. Annlia Paganini-Hill2
  1. 1University of California, Irvine, USA
  2. 2University of Southern California, Los Angeles, California, USA
  1. Correspondence to María M Corrada
    1513 Hewitt Hall, Irvine, CA 92697–1400, USA; mcorrada{at}uci.edu

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The prevalence of overweight and obesity is increasing across the whole age range, including among older people, in both developed and developing countries. Increased weight, especially obesity, is a well-established risk factor for cardiovascular disease and all-cause mortality in adults. However, the current standard categories of overweight and obesity based on body mass index (BMI), which were established to reflect such increased morbidity and mortality, are based largely on studies in young and middle-aged adults. As shown by the accompanying study and previous reports, these categories may not be appropriate for older people.

The study by Flicker and colleagues

Flicker and colleagues examined the association between BMI and mortality in a sample of older people aged 70–75 years. The participants were 4677 men and 4653 women living in metropolitan and urban areas of Australia from two different population-based longitudinal studies of …

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