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Gestational weight gain among minority adolescents predicts term birth weight

World Journal of Pediatrics 2018年第4期14卷 357-363页

作者： Maheswari Ekambaram matilde irigoyen Johelin DeFreitas Sharina Rajbhandari Jessica Lynn Geaney Leonard Edward Braitman Department of Pediatric&Adolescent Medicine Einstein Medical Center5501 Old York RoadPaley 1321PhiladelphiaPA 19141USA Office for Research and Technology Development Einstein Medical CenterPhiladelphiaPAUSA

Background In adolescents, there is limited evidence on the independent and additive effect of prepregnancy body mass index (BMI) and gestational weight gain on infant birth weight. Data also show that this effect may vary by race. We sought to examine the impact of maternal prepregnancy BMI and gestational weight gain on birth weight and risk of large for ges-tational age (LGA) in term newborns of minority adolescent mothers. Methods This was a retrospective cohort study of 411 singleton live term infants born to mothers ≤ 18 years. Data were abstracted from electronic medical records. Results Gestational weight gain was related to infant birth weight (ρ = 0.36,P < 0.0001), but BMI was not (ρ = 0.025, P = 0.61). On regression analysis, gestational weight gain, gestational age and Hispanic ethnicity were independent predic-tors of birth weight, controlling for maternal age, BMI, parity, tobacco/drug use and preeclampsia. The probability of having an LGA infant increased with weight gain [adjusted odds ratio (aOR) 1.14, 95% confidence interval (CI) 1.07–1.21] but not with BMI. Mothers who gained weight in excess of 2009 Institute of Medicine (IOM) recommendations had a greater risk of having an LGA infant compared to those who gained within recommendations (aOR 5.7, 95% CI 1.6–19.5). Conclusions Minority adolescents with greater gestational weight gain had infants with higher birth weight and greater risk of LGA;BMI was not associated with either outcome. Further studies are needed to examine the applicability of the 2009 BMI-specific IOM gestational weight gain recommendations to adolescents in minority populations.

关键词： Adolescents Birth weight Infant Pregnancy Weight gain

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