| Titre : | Physical Activity and Television Watching in Relation to Risk of Type 2 Diabetes : The Black Women's Health Study. (2009) |
| Auteurs : | Supriya KRISHNAN ; Julie-R PALMER ; Lynn ROSENBERG |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 169, n° 4, 2009) |
| Pagination : | 428-434 |
| Langues: | Anglais |
| Mots-clés : | Activité physique ; Télévision ; Facteur risque ; Risque ; Femme ; Incidence ; Activité ; Epidémiologie ; Homme ; Glande endocrine [pathologie] ; Locomotion |
| Résumé : | [BDSP. Notice produite par INIST-CNRS 8mEFR0xI. Diffusion soumise à autorisation]. Few modifiable risk factors for type 2 diabetes have been documented in the high-risk population of US black women. The authors used data from 45,668 black women aged 21-69 years, followed biennially from 1995 to 2005 in the Black Women's Health Study, to estimate incidence rate ratios for type 2 diabetes comparing various levels of physical activity and television watching. Cox proportional hazards models were used to control confounding factors. During 10 years of follow-up, 2,928 incident cases of type 2 diabetes were identified. Vigorous activity was inversely associated with type 2 diabetes risk (Ptrend<0.0001) ; the incidence rate ratio for>7 hours per week was 0.43 (95% confidence interval (Cl) : 0.31,0.59) relative to no activity. Brisk walking for>5 hours per week was associated with reduced type 2 diabetes risk (incidence rate ratio=0.67,95% Cl : 0.49,0.92) relative to no walking. Television watching was associated with an increased type 2 diabetes risk : The incidence rate ratio was 1.86 (95% Cl : 1.54,2.24) for>5 hours relative to<1 hour of television per day, independent of physical activity. These observational data suggest that black women might reduce their risk of developing type 2 diabetes by increasing their time spent walking or engaged in vigorous physical activity and by limiting television watching. |
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