The combined effect of maternal smoking and obesity on the risk of preeclampsia
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Christian D. Stone
, Ousmane Diallo , Jaye Shyken and Terry Leet
Abstract
Aims: Cigarette smoking during pregnancy is associated with a lower risk of preeclampsia, whereas obesity increases the risk of preeclampsia. We sought to assess the combined effect of smoking and obesity on the risk of preeclampsia.
Methods: We conducted a population-based cohort study of 129,674 women who delivered singleton infants during 2000–2001. Data for cigarette use, pre-pregnancy body mass index (BMI), preeclampsia, and potential confounders were obtained from birth certificate files. Mantel-Haenszel stratified analysis and logistic regression were used to analyze the data.
Results: The preeclampsia risk was 3.1, 4.5, 7.6 and 8.8% for normal weight (BMI 18.5–24.9), overweight (25.0–29.9), obese (30.0–39.9) and morbidly obese (≥40.0 kg/m2) women, respectively, who smoked cigarettes while pregnant. The preeclampsia risk was 3.9, 6.2, 9.0 and 12.3% for the same groups of women, respectively, who did not smoke during their pregnancy. Compared to non-smokers, the relative risk of preeclampsia for women who smoked cigarettes was 0.78 (95% confidence interval 0.73–0.83) before and after adjusting for pre-pregnancy BMI and other factors associated with preeclampsia.
Conclusion: The risk of preeclampsia is lower for women who smoke cigarettes while pregnant regardless of their pre-pregnancy BMI.
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©2007 by Walter de Gruyter Berlin New York
Articles in the same Issue
- Cervical surgery and preterm birth
- How useful is 3D and 4D ultrasound in perinatal medicine?
- The combined effect of maternal smoking and obesity on the risk of preeclampsia
- Slow change in body mass index during early triplet pregnancy is associated with decreased birth weight
- Examining the relationship between positive mid-gestational fetal fibronectin assays and histological evidence of acute placental inflammation
- Paternal smoking is associated with a decreased prevalence of type 1 diabetes mellitus among offspring in two national British birth cohort studies (NCDS and BCS70)
- Three-dimensional ultrasound power Doppler assessment of the cervix: comparison between nulliparas and multiparas
- Gender- and parity-specific reference charts for fetal size in low risk singleton pregnancies at the onset of the third trimester
- Near term twin pregnancy: clinical relevance of weight discordance at birth
- Intracerebellar hemorrhage in premature infants: sonographic detection and outcome
- Determining the least time required for measuring energy expenditure in premature neonates
- Neither maternal nor fetal mutation (E474Q) in the α-subunit of the trifunctional protein is frequent in pregnancies complicated by HELLP syndrome
- Long-term subcutaneous morphine administration after surgery in newborns
- Superior sagittal sinus thrombosis: a rare but serious complication of hypernatremic dehydration in newborns
- Congress Calendar
- Roster of Perinatal Societies
Articles in the same Issue
- Cervical surgery and preterm birth
- How useful is 3D and 4D ultrasound in perinatal medicine?
- The combined effect of maternal smoking and obesity on the risk of preeclampsia
- Slow change in body mass index during early triplet pregnancy is associated with decreased birth weight
- Examining the relationship between positive mid-gestational fetal fibronectin assays and histological evidence of acute placental inflammation
- Paternal smoking is associated with a decreased prevalence of type 1 diabetes mellitus among offspring in two national British birth cohort studies (NCDS and BCS70)
- Three-dimensional ultrasound power Doppler assessment of the cervix: comparison between nulliparas and multiparas
- Gender- and parity-specific reference charts for fetal size in low risk singleton pregnancies at the onset of the third trimester
- Near term twin pregnancy: clinical relevance of weight discordance at birth
- Intracerebellar hemorrhage in premature infants: sonographic detection and outcome
- Determining the least time required for measuring energy expenditure in premature neonates
- Neither maternal nor fetal mutation (E474Q) in the α-subunit of the trifunctional protein is frequent in pregnancies complicated by HELLP syndrome
- Long-term subcutaneous morphine administration after surgery in newborns
- Superior sagittal sinus thrombosis: a rare but serious complication of hypernatremic dehydration in newborns
- Congress Calendar
- Roster of Perinatal Societies