Diabetes Care, Vol 20, Issue 4 650-652, Copyright © 1997 by American Diabetes Association
Given diabetes, is fat better than thin?
C Ross, RD Langer and E Barrett-Connor
Department of Family and Preventive Medicine, University of California at San Diego, La Jolla 92093-0607, USA. rlanger@ucsd.edu
OBJECTIVE: To evaluate the association between BMI and mortality in women
and men with type II diabetes. RESEARCH DESIGN AND METHODS: Fasting plasma
glucose (FPG), height and weight measurements, and medical history were
obtained from 4,483 community-dwelling adults, aged 40-79 years, in
1972-1974. A total of 373 persons with either a history of diabetes or FPG
> or = 7.77 mmol/l were studied. Subjects were grouped into four
sex-specific weight categories based on U.S. population data. Vital status
after 14 years was known for 99.9% of the patients studied. Cox models were
used to assess relative survival by weight category. RESULTS: Diabetic men
and women of average weight had the lowest mortality. A J-shaped relative
risk curve by weight category was found, with a poorer survival rate for
those who were thin, overweight, or obese. This effect was not explained by
early mortality or cigarette smoking. CONCLUSIONS: Being thin may not
provide a mortality benefit for diabetic men and women. Average weight
appears to be desirable.