Résumé :
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[BDSP. Notice produite par INIST-CNRS FrR0xqBq. Diffusion soumise à autorisation]. The effect of birth weight on white blood cell (WBC) count among blacks and whites was examined in 2,080 children (aged 4-11 years, 57.4% white, and 49.2% male), 892 adolescents (aged 12-17 years, 57.2% white, and 50.8% male), and 1,872 adults (aged 18-38 years, 68.4% white, and 41.9% male) from Bogalusa, Louisiana, in 2005. After adjustment for age, sex, race, body mass index, and smoking status (in adolescents and adults), the WBC count decreased across quartiles of increasing birth weight specific for race, sex, and gestational age in children (Ptrend=0.0007) and adults (Ptrend=0.005). In multivariate regression analyses that included the covariates above, birth weight was inversely associated with WBC count in children (bêta coefficients (unit, cells/muL per kg)=-256, - 241, and - 251 for whites, blacks, and the combined sample, with P=0.003,0.029, and
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