This study examined whether recent changes in smoking prevalence among pregnant women have affected risks of small-for-gestational-age births.
With data for all live single births in Sweden from 1983 through 1992 (n=1 048 139), odds ratio [ORs] and attributable risks of small-for-gestational-age births were calculated for 1983 through 1985,1986 through 1989, and 1990 through 1992.
Daily smoking decreased from 29.4% in 1983 to 21.8% in 1992.
For the three time periods, the odds ratios of small-for-gestational-aged births by maternal smoking were almost identical :
1-9 cigarettes/day OR=2.1 or 2.2 ;
OR=2.8. The attributable risk of smoking for small-for-gestational-age births declined from 26.2% in 1983 through 1985 to 20.9% in 1990 through 1992.
The findings point to a true decrease in tobacco exposure during pregnancy and a reduction in the attributable risk for small-for-gestational-age births.
Mots-clés Pascal : Gestation, Tabagisme, Mère, Hypotrophie foetale, Retard staturopondéral, Epidémiologie, Prévalence, Facteur risque, Evolution, Foetus, Suède, Europe, Gestation pathologie, Foetus pathologie
Mots-clés Pascal anglais : Pregnancy, Tobacco smoking, Mother, Fetal hypotrophy, Growth retardation, Epidemiology, Prevalence, Risk factor, Evolution, Fetus, Sweden, Europe, Pregnancy disorders, Fetal diseases
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0288612
Code Inist : 002B20F02. Création : 15/07/1997.