Abstract
BackgroundMaternal smoking during pregnancy is a major risk for adverse perinatal outcomes, as well as children’s health status. Thus, it is important to describe maternal smoking status during pregnancy and child-rearing to devise better intervention strategies. However, there have been no longitudinal studies to describe the status. Thus, in this study, we aimed to describe maternal smoking status during pregnancy and child-rearing based on population-based maternal and child health information. Moreover, we explored the factors associated with maternal smoking relapse after delivery.MethodsWe performed a survey of 1,220 mothers in a Japanese rural area who responded to a questionnaire upon registration of their pregnancies. When their children received health checkups at 4, 18, and 36 months of age, maternal smoking status was also surveyed. We then performed multiple logistic regression analysis to explore factors associated with maternal smoking relapse after delivery.ResultsUltimately, the total number of mothers with data available for longitudinal analysis was 727 (59.6%). At the time of pregnancy registration, there were 74 current smokers (10.2%) and 176 former smokers (24.2%). Among them, 59 (33.5%) relapsed after delivery. Under 28 years of maternal age at pregnancy registration (OR 2.6; 95% CI, 1.2–5.4) was associated with maternal smoking relapse after delivery.ConclusionsLongitudinal analyses showed that about 60% of mothers who smoked before and after delivery failed smoking cessation. In addition, younger mothers were significantly likely to relapse smoking after delivery.
Highlights
The concept of ‘developmental origins of health and disease’ has been increasingly applied to the field of perinatal and pediatric epidemiology
There were some contradictions about maternal smoking status in 131 (10.7%)
Age of mother at pregnancy registration was associated with maternal smoking relapse after delivery
Summary
The concept of ‘developmental origins of health and disease’ has been increasingly applied to the field of perinatal and pediatric epidemiology. Based on this theory, the idea that maternal smoking during the perinatal period plays an important role in childhood growth and development has been proposed[1] because some perinatal complications, such as premature membrane rupture, placental abruption, preterm delivery, and low birth weight, are caused by maternal smoking during pregnancy.[2] it has been suggested that sudden infant death syndrome,[2,3] as well as childhood obesity and delayed development,[4,5,6] are associated with maternal smoking during pregnancy. We explored the factors associated with maternal smoking relapse after delivery
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