| Titre : | Race, anthropometric factors, and stage at diagnosis of breast cancer. (2001) |
| Auteurs : | Patricia-G MOORMAN ; Ingrid-J HALL ; Beth-A JONES ; Robert-C MILLIKAN ; Beth NEWMAN ; Department of Epidemiology and Public Health. School of Medicine. Yale University. New Haven. CT. USA ; Department of Epidemiology. School of Public Health. University of North Carolina. Chapel Hill. NC. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 153, n° 3, 2001) |
| Pagination : | 284-291 |
| Langues: | Anglais |
| Mots-clés : | Cancer ; Sein ; Homme ; Femme ; Dépistage ; Epidémiologie ; Etats Unis ; Amérique ; Anthropométrie ; Race ; Mammographie ; Facteur sociodémographique ; Obésité ; Glande mammaire [pathologie] ; Radiodiagnostic ; Maladie nutrition ; Amérique du Nord |
| Résumé : | [BDSP. Notice produite par INIST jR0x74Hh. Diffusion soumise à autorisation]. A recent study suggested that the greater prevalence of severe obesity among African-American women explained almost one third of the observed differences between African-American and White women in stage at diagnosis of breast cancer. The objective of this investigation was to attempt to replicate these findings in a second, larger population and to expand the analyses by including a measure of body fat distribution, the waist : hip ratio. The authors used data from a population-based study in North Carolina comprising 791 breast cancer cases (302 in African-American women and 489 in White women) diagnosed between 1993 and 1996. African-American women were more likely to have later-stage (TNM stage >=II) breast cancer (odds ratio (OR)=2.2 ; 95% confidence interval (Cl) : 1.6,2.9). They also were much more likely to be severely obese (body mass index >=32.3) (OR=9.7 ; 95% Cl : 6.5,14.5) and to be in the highest tertile of waist : hip ratio (OR=5.7 ; 95% Cl : 3.8,8.6). In multivariate logistic regression models, adjustment for waist : hip ratio reduced the odds ratio for later-stage disease in African-American women by 20% ; adjustment for both waist : hip ratio and severe obesity reduced the odds ratio by 27%. These observations suggest that obesity and body fat distribution, in addition to socioeconomic and medical care factors, contribute to racial differences in stage at breast cancer diagnosis. |
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