[ relationship between passive smoking of mother and pregnancy outcome in Hajar hospital in Shahrekord]

ABSTRACT

Adverse health effects of exposure to environmental tobacco smoke [ETS] among non-smokers have been studied occasionally in developing countries. The aim of this study was to determine the relationship of exposure to ETS and pregnancy outcome. In this study 600 non-smoker women who had borned a singleton live baby were studied by questionnaire in delivery room in Hajar hospital in Shahrekord and maternal and fetal outcomes [Anemia, hypertention, placenta previa and placenta abruption, the beginning and method of delivery Apgar score, congenital malformations, birth weight and small for gestational age] were compared in mothers who were exposed to invironmental tobacco smoke with those who were not exposed. We used spss software and descriptive and analytical statistics for analysis of data and P<0.05 was considered significant. Out of 600 women undergone studied, 236 [39.3%] were exposed to ETS. In this group there was a significantly higher incidence of anemia [22.8% versus 14.2%, P<0.001], pre-term birth [15.2% versus 7.9%, P <0.008] and small-for-gestation babies [15.4% versus 6.8%, p< 0.001] as compared to unexposed mothers. The mean birth weight of the babies who were born by mothers exposed to ETS was 139 g less than that of babies in the unexposed group [3094.49 +/- 402 g versus 3233.99 +/- 443 g respectively, p< 0.001]. The multiple logistic regression analyses showed that ETS exposure during pregnancy was significantly associated with a higher risk of small-for-gestation babies, reduction of birth weight, preterm labor and anemia in mother and the small-for-gestational age had a significantly correlation than other factors with exposure to tobacco smoke. Exposure to ETS during pregnancy is associated with higher risk of having a small-for-gestation baby