Résumé :
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[BDSP. Notice produite par INIST V5Ei0R0x. Diffusion soumise à autorisation]. Objectives. This study investigated social variation in birth outcome in the Czech Republic after the political change of 1989. Methods. Routinely collected records on singleton live births in 1989,1990, and 1991 (n=380 633) and 1994,1995, and 1996 (n=286 907) were individually linked to death records. Results. Mean birthweight fell from 3323 g to 3292 g (P<. 001) between 1989 and 1991 and then increased to 3353 g by 1996. The gap in mean birthweight between mothers with a primary education and those with a university education, adjusted for age, parity, and sex of infants, widened from 182 g (95% confidence interval [CI]=169,194) in 1989 to 256 g (95% CI=240,272) in 1996. Similar trends were found for preterm births. Postneonatal mortality declined most among the better educated and the married. The odds ratio for postneonatal death for infants of mothers with a primary (vs university) education, adjusted for birthweight, increased from 1.99 (95% CI=1.52,2.60) in 1989 through 1991 to 2.39 (95% CI=1.55,3.70) in 1994 through 1995. Conclusions. Despite general improvement in the indices of fetal growth and infant survival in the most recent years, social variation in birth outcome in the Czech Republic has increased.
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