رابطه ي مواجهه ي مادران باردار با دود سيگار محيطي و وزن و قد نوزادان آنها

Background: A number of non-smokers especially pregnant women unwontedly are exposed to environment tobacco smoke for two hours a day. The present study was conducted to determine the effect of maternal passive smoking on the weight and height of the newborns whose mothers referred to Vali Asr and Imam Hossein hospitals in Zanjan in 2001. Material and Methods: This historical cohort study was carried out on 300 pregnant women. Half of the individuals were exposed to cigarette smoke either at home or at work place for at least 2 hours a day. This group was considered as case group. The other half were not exposed to cigarette smoke and considered as control group. All subjects had the characteristics of a defined checklist. The data was collected using a combination of interview, observation and questionnaire methods. Statistical analysis was performed by SPSS software. Results; In the control and experimental groups the mean weight of the newborns was 3200±406 and 3057.4±381 grams respectively (P=0.002). The mean height of the experimental group was 49.8±1.5 and that of the control group was 49.6±2.1 cm. The mean head circumference of the control group was 34.7±1.4 cm and that of the case group was (p=0.3) 34.5±1.2 cm. From this study, it can be concluded that exposure to cigarette smoke during pregnancy can cause newborn weight reduction. Conclusion: Womenʹs knowledge of prenatal exposure to tobacco smoke products, defined as active and passive smoking, should be raised.