Document Type : Original Article

Authors

1 1. Student Research Committee, Babol University of Medical Sciences, Babol, Iran

2 2. Associate Professor of Neonatal-Perinatal Medicine, Department of Pediatrics, School of Medicine, Non-Communicable Pediatric Disease Research Center Health Research Institute Amirkola Hospital Babol University of Medical Sciences

3 Department of Nursing, School of Medicine, Babol University of Medical Sciences, Babol, I.R Iran

4 Nursing Care Research Center, Nursing & Midwifery Faculty, Babol University of Medical Sciences, Babol, Iran

5 - Nursing Care Research Center, Nursing & Midwifery Faculty, Babol University of Medical Sciences, Babol, Iran

6 Non-Communicable Pediatric Disease Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, I.R.Iran

7 7. Ph.D student of epidemiology, School of Health, Tehran University of Medical Sciences, Tehran, Iran

10.22038/ijn.2023.74672.2444

Abstract

Background: Fetal and neonatal health is of particular importance in pregnant women. Secondhand smoke (SHS) can jeopardize the health of the mother, fetus, and neonate. The present study was conducted to determine the relationship between exposure to secondhand smoke during pregnancy and neonatal-related outcomes.

Methods: This retrospective cohort study was conducted in 2022 on 270 mother–newborn pairs through convenience sampling in two equal groups (n=135), including exposure and non-exposure to (SHS) in Rohani Hospitals in Babol, Children's Hospital in Amirkola, and Imam Ali Hospital in Amol. In order to collect the data, a checklist including the demographic characteristics, medical variables, and Questions related to exposure of mother to cigarette smoke, the neonatal outcomes questionnaire, and the SNAPPE-II scale were used. Data analysis was performed using Stata statistical software version 17 and the significance level of all tests was considered less than 0.05.

Results: The mean age of mothers was 28.30 ± 5.83, and 61% of births were by cesarean section. The SNAPPE-II score was 8.23 ± 5.29 in the non-exposure to the (SHS)group and 20.68±13.53 in the exposure to the secondhand smoke group (p=0.005). The prevalence of neonates with a birth weight of less than 2500gr was higher in mothers exposed to (SHS)(p=0.033). Considering confounding variables, the neonates in the non-exposure to the (SHS)group were, on average, 1.46 cm taller than those in the exposure to the (SHS) group (p=0.005). Exposure to smoking increases the risk of premature birth by 1.65 times. (p=0.032).

Conclusions: Exposure of pregnant mothers to (SHS) is associated with adverse neonatal outcomes. Therefore, it is recommended to train families to avoid exposure to cigarette smoke, especially during pregnancy and also for health centers to pay special attention to this matter in the care of pregnant mothers.

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