Back to Search
Start Over
Risks of Preterm Delivery and Small for Gestational Age Infants: Effects of Nondaily and Low-Intensity Daily Smoking During Pregnancy.
- Source :
-
Paediatric & Perinatal Epidemiology . Mar2017, Vol. 31 Issue 2, p144-148. 5p. - Publication Year :
- 2017
-
Abstract
- <bold>Background: </bold>Few studies have examined the effects of nondaily smoking or low-intensity daily smoking and infant outcomes. We examined the associations between preterm delivery and small for gestational age (SGA) infants in relation to both nondaily and daily smoking.<bold>Methods: </bold>We used population-based data on women who delivered live singleton infants using the 2009-11 Pregnancy Risk Assessment Monitoring System. Women's smoking status in the last 3 months of pregnancy was categorised as nonsmokers, quitters, nondaily smokers (<1 cigarette/day), and daily smokers. Controlling for maternal age, maternal race/ethnicity, education, marital status, prepregnancy body mass index (BMI), trimester of prenatal care entry, parity, and alcohol use, we estimated adjusted prevalence ratios (PR) for the outcomes of preterm delivery (<37 weeks' gestation) and SGA.<bold>Results: </bold>Of the 88 933 women, 13.1%, 1.7%, and 9.6% of the sample were quitters, nondaily smokers, and daily smokers, respectively, in the last 3 months of pregnancy. While nondaily smoking was not associated with preterm delivery, daily smoking was. However, we found no dose-response relationship with the number of cigarettes smoked per day. Risk of delivering a SGA infant was increased for both nondaily and daily smokers (PR 1.4, 95% CI 1.1, 1.8 and PR 2.0, 95% CI 1.9, 2.2 respectively).<bold>Conclusions: </bold>Nondaily smoking in the last 3 months of pregnancy was associated with an increased risk of delivering a SGA infant. Pregnant women should be counselled that smoking, including nondaily and daily smoking, can adversely affect birth outcomes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02695022
- Volume :
- 31
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Paediatric & Perinatal Epidemiology
- Publication Type :
- Academic Journal
- Accession number :
- 121407939
- Full Text :
- https://doi.org/10.1111/ppe.12343