| Titre : | Mortality and optimal body mass index in a sample of the US population. (1998) |
| Auteurs : | R.A. DURAZO-ARVIZU ; R.S. COOPER ; A. LUKE ; D.L. MCGEE ; YOULIAN LIAO . (.) ; Department of Preventive Medicine and Epidemiology. Stritch School of Medicine. Loyola University. Maywood IL. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 147, n° 8, 1998) |
| Pagination : | 739-749 |
| Langues: | Anglais |
| Mots-clés : | Létalité ; Obésité ; Epidémiologie ; Facteur risque ; Homme ; Etats Unis ; Amérique du Nord ; Amérique ; Maladie nutrition |
| Résumé : | [BDSP. Notice produite par INIST jINR0xtx. Diffusion soumise à autorisation]. In this paper, the authors model the nonmonotonic relation between body mass index (BMI) (weight (kg)/height2 (m2)) and mortality in 13,242 black and white participants in the NHANES I Epidemiologic Follow-up Study in order to estimate the BMI at which minimum mortality occurs. The BMI of minimum mortality was 27.1 for black men (95% confidence interval (Cl) 24.8-29.4), 26.8 for black women (95% Cl 24.7-28.9), 24.8 for white men (95% Cl 23.8-25.9), and 24.3 for white women (95% CI 23.3-25.4). Each confidence interval included the group average. Analyses conducted by smoking status and after exclusion of persons with baseline illness and persons who died during the first 4 years of follow-up led to virtually identical estimates. The authors determined the range of values over which risk of all-cause mortality would increase no more than 20% in comparison with the minimum. This interval was nine BMI units wide, and it included 70% of the population. These results were confirmed by parallel analyses using quantiles. The model used allowed the estimation of parameters in the BMI-mortality relation. The resulting empirical findings from each of four race/sex groups, which are representative of the US population, demonstrate a wide range of BMls consistent with minimum mortality and do not suggest that the optimal BMI is at the lower end of the distribution for any subgroup. |
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