Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Institute of Gerontology, School of Health Sciences, Jönköping University, Jönköping, Sweden.
To examine how body mass index (BMI) and change in BMI are associated with mortality in old (70-79) and very old (=80) individuals.
Pooled data from three multidisciplinary prospective population-based studies: OCTO-twin, Gender, and NONA.
Sweden.
Eight hundred eighty-two individuals aged 70 to 95.
BMI was calculated from measured height and weight as kg/m(2) . Information about survival status and time of death was obtained from the Swedish Civil Registration System.
Mortality hazard was 20% lower for the overweight group than the normal-underweight group (relative risk (RR)?=?0.80, P?=?.011), and the mortality hazard for the obese group did not differ significantly from that of the normal-underweight group (RR?=?0.93, P?=?.603), independent of age, education, and multimorbidity. Furthermore, mortality hazard was 65% higher for the BMI loss group than for the BMI stable group (RR?=?1.65, P?
Notes
Cites: J Am Geriatr Soc. 2010 Jul;58(7):140720649700