Introduction: Background and Aim: Complications of exposure to second-hand smoke (SHS) are known to affect the health of pregnant women and fetus. It requires designing an intervention to reduce the exposure of pregnant women to smoke. This study, therefore, aimed to examine the effect of couples motivational interview in pregnancy on men's smoking at home.
Methods: The present study is a clinical trial study. 112 couples (56 non-smoking pregnant women with smoking spouse) were enrolled in the study. Sampling was performed in several steps. First, according to the social, economic and cultural conditions of the city, Urmia was divided into three sections, and two comprehensive health centers were randomly selected from each section. Blocked randomization method was used for random allocation in control and intervention groups. The motivational interview was conducted in 5 sessions of 60 minutes twice a week for intervention group. The control group received routine prenatal care. Post-test was performed in the control and intervention groups 7 days and 30 days after the intervention. Data were analyzed using a repeated-measures analysis of variance by SPSS-20 at a significance level of 0.05.
Results: The median number of cigarette smoked ,before intervention, one week, and one month after the intervention were (70-172/5) 110 , (40-135/5) 70 and (46-122/5)69.50 respectively. The results showed that these decreasing changes were statistically significant (P <0.001).
Conclusion: Couples' motivational interview can be used to reduce smoking by the spouse, which ultimately changes the behavior of the pregnant women to reduce exposure to secondhand smoke.
Keywords: second hand smoke, pregnancy, motivational interview