BJOG : an international journal of obstetrics and gynaecology · 2019
Association between maternal alcohol consumption during pregnancy and risk of preterm delivery: the Japan Environment and Children's Study.
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Ikehara S, Kimura T, Kakigano A, Sato T, Iso H, Japan Environment Children's Study Group
Аннотация
OBJECTIVE: To examine the association between maternal alcohol consumption during pregnancy and the risk of preterm delivery.
DESIGN: Prospective cohort study.
SETTING: The Japan Environment and Children's Study (JECS).
POPULATION: A total of 94 349 singleton pregnancies.
METHODS: Participants completed questionnaires detailing alcohol consumption during the first trimester and during the second and third trimesters. Participants were divided into four categories according to alcohol consumption (non-drinkers, consumers of 1-149 g, 150-299 g and ≥300 g ethanol/week). We examined the effect of alcohol consumption during different stages of pregnancy on the risk of preterm delivery. Odds ratios (OR) and 95% CI were calculated relative to non-drinkers using logistic regression.
MAIN OUTCOME MEASURES: Medical record-based preterm delivery.
RESULTS: Alcohol consumption during the second and third trimesters, but not during the first trimester, was associated with increased risk of preterm delivery. Heavy alcohol consumption (≥300 g ethanol/week) during the second and third trimesters was associated with a four-fold higher risk compared with non-drinkers (multivariable OR 4.52; 95% CI 1.68-12.2). Light alcohol consumption (1-149 g ethanol/week) tended to be associated with lower risk of preterm delivery (multivariable OR 0.78; 95% CI 0.60-1.00).
CONCLUSIONS: Heavy alcohol consumption during the second and third trimesters was associated with increased risk of preterm delivery among pregnant women.
TWEETABLE ABSTRACT: Heavy drinking during pregnancy may increase the risk of preterm delivery.
DESIGN: Prospective cohort study.
SETTING: The Japan Environment and Children's Study (JECS).
POPULATION: A total of 94 349 singleton pregnancies.
METHODS: Participants completed questionnaires detailing alcohol consumption during the first trimester and during the second and third trimesters. Participants were divided into four categories according to alcohol consumption (non-drinkers, consumers of 1-149 g, 150-299 g and ≥300 g ethanol/week). We examined the effect of alcohol consumption during different stages of pregnancy on the risk of preterm delivery. Odds ratios (OR) and 95% CI were calculated relative to non-drinkers using logistic regression.
MAIN OUTCOME MEASURES: Medical record-based preterm delivery.
RESULTS: Alcohol consumption during the second and third trimesters, but not during the first trimester, was associated with increased risk of preterm delivery. Heavy alcohol consumption (≥300 g ethanol/week) during the second and third trimesters was associated with a four-fold higher risk compared with non-drinkers (multivariable OR 4.52; 95% CI 1.68-12.2). Light alcohol consumption (1-149 g ethanol/week) tended to be associated with lower risk of preterm delivery (multivariable OR 0.78; 95% CI 0.60-1.00).
CONCLUSIONS: Heavy alcohol consumption during the second and third trimesters was associated with increased risk of preterm delivery among pregnant women.
TWEETABLE ABSTRACT: Heavy drinking during pregnancy may increase the risk of preterm delivery.