Does Lack of Multinutrient Supplementation During Early Pregnancy Increase Vulnerability to Alcohol-Related Preterm or Small-for-Gestational-Age Births?

The objective of this study was to assess whether women who do not take multinutrient supplements during early pregnancy are more susceptible to the effects of low-to-moderate alcohol consumption on preterm birth and small-for-gestational-age birth (SGA) compared to women who do take multinutrients. This analysis included 800 singleton live births to mothers from a cohort of pregnant women recruited for a population-based cohort study conducted in the Kaiser Permanente Medical Care Program in Northern California. Participants were recruited in their first trimester of pregnancy and information about their alcohol use and supplement intake during pregnancy was collected. Preterm birth (n = 53, 7%) was defined as a delivery prior to 37 completed weeks of gestation and SGA birth (n = 124, 16%) was defined as birth weight less than the 10th percentile for the infant’s gestational age and sex compared to US singleton live births. A twofold increase in the odds of SGA birth attributed to low-to-moderate alcohol intake was found among multinutrient supplement non-users (95% CI: 1.1, 5.3). Yet, among multinutrient supplement users, there was no increased risk of an SGA birth for women who drank low-to-moderately compared to women who abstained (aOR: 0.97, 95% CI: 0.6, 1.6). Similar results emerged for preterm birth. Our findings provide marginal evidence that multinutrient supplementation during early pregnancy may modify the risk of SGA births and preterm birth associated with alcohol consumption during pregnancy and may have important implications for pregnant women and women of child-bearing age. However, future research needs to be conducted

Volume and Type of Alcohol During Early Pregnancy and the Risk of Miscarriage

BackgroundResearch on alcohol consumption during pregnancy and miscarriage spans over three decades, yet the relationship is still not well-understood.ObjectivesTo assess the relationship between volume and type of alcohol consumed during pregnancy in relation to miscarriage.MethodsWe utilized data from a population-based cohort study of pregnant women (n = 1061) of which 172 (16%) women had a miscarriage. Upon study entry, participants were asked about their alcohol consumption during pregnancy. Based on the average number of drinks per week, women were categorized into one of three categories: four or more drinks per week (n = 32, 3%), less than four drinks per week (n = 403, 38%), and no alcohol intake (n = 626, 59%). In addition, women were categorized by the type of alcohol beverage they consumed: beer only (n = 47, 4%), spirits only (n = 56, 5%), wine only (n = 160, 15%), or a combination of two or more types of alcohol (n = 172, 16%).ResultsA significant increased risk of miscarriage (adjusted hazard ratio (aHR): 2.65; 95% confidence interval (CI): 1.38, 5.10) was found for women who drank four or more drinks a week. Our findings also suggest the relationship between alcohol intake during pregnancy and miscarriage is strongest for miscarriage occurring prior to 10 weeks of gestation. In addition, women who drank only spirits had more than a two-fold increased risk of miscarriage compared to women who abstained (aHR: 2.24; 95% CI: 1.32, 3.81). Conclusions/Importance: Future research assessing the factors that may contribute to an increased risk of miscarriage should consider the type of alcohol consumed

Volume and Type of Alcohol During Early Pregnancy and the Risk of Miscarriage

This study addresses the relationship between alcohol use during pregnancy and miscarriage. A cohort study of pregnant women (n=1061) recruited from 1996 –1998 in the San Francisco area. 3% (n=32) drank 4 or more drinks per week, 38% (n=403) consumed <4 drinks per week and 59% (n= 626) reported no alcohol intake. Women were also categorized by the type of alcohol consumed. An increased risk of miscarriage was found for 1) women who drank four or more drinks a week and 2) women who drank spirits. Future research assessing miscarriage risk should consider the volume and type of alcohol consumed