Marijuana Use during Pregnancy and Preterm Birth: A Prospective Cohort Study.

ABSTRACT:

Objective

The aim of this study is to estimate the association between marijuana use during pregnancy and total, spontaneous and indicated preterm birth.

Study design

Prospective cohort study of women receiving antenatal care at The Ohio State University from 2010 to 2015. Marijuana use was assessed by questionnaire, record abstraction, and urine toxicology. Women were followed through the end of pregnancy. Relative risks were assessed with Poisson regression and time to delivery with proportional hazard models.

Results

Of 363 eligible women, 119 (33%) used marijuana in pregnancy by at least one measure. In this high-risk cohort, preterm birth occurred to 36.0% of users and 34.6% of nonusers (p = 0.81). The unadjusted relative risk of all preterm birth was 1.06

SUBMITTER: Klebanoff MA 

PROVIDER: S-EPMC9526354 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature