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Published on: August 25, 2014
Prenatal amphetamine exposure and birth outcomes: a systematic review and metaanalysis
Noor Niyar N Ladhani1, Prakesh S Shah, Kellie E Murphy
1Department of Obstetrics and Gynecology, University of Toronto Faculty of Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada.
Objective:
The aim of this study was to systematically review the relationship between amphetamine exposure in pregnancy and birth outcomes.
Study Design:
Electronic databases were searched to identify relevant studies. Data from included studies were extracted by 2 reviewers. Summary odds ratio (OR) and confidence intervals (CIs) were calculated using the random effects model.
Results:
Ten studies were included. Significant increases in unadjusted risks of preterm birth (OR, 4.11; 95% CI, 3.05-5.55), low birthweight (OR, 3.97; 95% CI, 2.45-6.43), and small for gestational age (OR, 5.79; 95% CI, 1.39-24.06) were identified among women exposed to amphetamines in pregnancy. The mean birthweight was significantly lower among amphetamine-exposed pregnancies (mean difference, -279 g; 95% CI, -485 to -74 g). Two studies provided adjusted estimates on different outcomes, and their results were consistent with the findings from the unadjusted data.
Conclusion:
Amphetamine exposure in pregnancy is associated with adverse birth outcomes and should be identified by physicians providing antenatal care.
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