Journal
PREVENTIVE MEDICINE
Volume 155, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ypmed.2022.106963
Keywords
Congenital heart disease; Cohort; Alcohol consumption; Pre-pregnancy; Early pregnancy
Funding
- National Natural Science Foundation of China [82173608, 82073653, 81973137, 81803313]
- Hunan Provincial Science and Technology Talent Support Project [2020TJ-N07]
- NHC Key Laboratory of Birth Defect for Research and Prevention [KF2020006]
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This study suggests that maternal alcohol consumption in the 3 months before pregnancy and in early pregnancy is associated with an increased risk of offspring congenital heart disease (CHD). Specifically, the highest risk was observed for Tetralogy of Fallot in offspring exposed to maternal alcohol consumption in the 3 months before pregnancy. These findings highlight the importance of public health efforts to raise awareness of the potential risks of alcohol consumption prior to or during pregnancy.
Evidence of associations between maternal alcohol consumption and congenital heart disease (CHD) are mixed. Previous studies have been potentially biased due to recall bias or unmeasured confounding. This study aimed to examine the association of maternal alcohol consumption in 3 months before pregnancy and in early pregnancy with risks of offspring congenital heart disease (CHD) and its seven common subtypes. A prospective cohort study was conducted in Central China. From 03/13/2013 to 12/31/2019, a total of 44,048 pregnant women with singleton pregnancies at 8-14 gestational weeks were included and followed to 3 months postpartum. 564 births were diagnosed with CHD at the end of follow-up. Multivariable modified Poisson regression models were used to estimate the relative risks (RRs) of CHD in offspring exposed to maternal alcohol consumption during the pre-pregnancy and early-pregnancy period, adjusting for confounders identified by directed acyclic graphs. In the multivariable analyses, increased risks of CHDs were found in offspring exposed to maternal alcohol consumption both in 3 months before pregnancy (adjusted-RR:3.14; 95% confidence intervals[CIs]:2.30-4.28) and in early pregnancy (adjusted-RR:1.86; 95%CIs:1.13-3.05). More specifically, the offspring exposed to maternal alcohol consumption in 3 months before pregnancy had the highest increased risk of Tetralogy of Fallot (adjusted-RR:8.62; 95%CIs:3.61-20.61). These findings persisted in analyses that were further adjusted for the other behavior variables other than the characteristic being assessed, and were also confirmed by sensitivity analyses. Our study supports the need for continued efforts for public health messages surrounding the potential risks of alcohol consumption prior to or during pregnancy.
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