Anna Peeters, PhD
In older adults, do measures of adiposity and cardiorespiratory fitness predict mortality?
Prospective cohort study with mean follow-up of 12 years.
Health care clinic in Dallas, Texas, USA.
2603 persons ≥ 60 years of age (mean 64 y, 80% men) who completed a treadmill exercise test with ≥ 85% of age-predicted maximal heart rate and had body mass index (BMI) ≥ 18.5 kg/m2.
Fitness (total treadmill time) and measures of adiposity (BMI, percentage of body fat, fat-free mass, and waist circumference).
All-cause mortality identified through the National Death Index and death certificates.
Risk for death decreased with increasing levels of fitness (Table). BMI had a J-shaped association with mortality (Table). Persons with abdominal obesity (waist circumference ≥ 88 cm in women and ≥ 102 cm in men) had increased mortality, but this did not differ from those with normal waist circumference when adjusted for fitness (Table). Percentage of body fat and fat-free mass were not associated with mortality.
In older adults, body mass index and cardiorespiratory fitness were predictors of mortality.
Association between cardiorespiratory fitness and measures of adiposity and all-cause mortality in older adults at mean 12 years
*CI defined in Glossary. Hazard ratios (HRs) adjusted for age, sex, examination year, smoking, abnormal exercise electrocardiogram response, and baseline health conditions. HRs for fitness also adjusted for body mass index. HRs for adiposity measures also adjusted for fitness.
Peeters A. BMI and cardiorespiratory fitness predicted mortality in older adults. Ann Intern Med. ;148:JC3–12. doi: 10.7326/0003-4819-148-10-200805200-02012
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Published: Ann Intern Med. 2008;148(10):JC3-12.
Geriatric Medicine, Obesity.
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