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Trends in gestational weight gain: the Pregnancy Risk Assessment Monitoring System, 2000—2009
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6 2015
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Source: Am J Obstet Gynecol. 212(6):806.e1-806.e8
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Alternative Title:Am J Obstet Gynecol
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Description:OBJECTIVE
Achieving adequate gestational weight gain (GWG) is important for optimal health of the infant and mother. We estimate current population-based trends of GWG.
STUDY DESIGN
We analyzed data from the Pregnancy Risk Assessment Monitoring System for 124,348 women who delivered live infants in 14 states during 2000 through 2009. We examined prevalence and trends in GWG in pounds as a continuous variable, and within 1990 Institute of Medicine (IOM) recommendations (yes/no) as a dichotomous variable. We examined adjusted trends in mean GWG using multivariable linear regression and GWG within recommendations using multivariable multinomial logistic regression.
RESULTS
During 2000 through 2009, 35.8% of women gained within IOM GWG recommendations, 44.4% gained above, and 19.8% gained below. From 2000 through 2009, there was a biennial 1.0 percentage point decrease in women gaining within IOM GWG recommendations (P trend < .01) and a biennial 0.8 percentage point increase in women gaining above IOM recommendations (P trend < .01). The percentage of women gaining weight below IOM recommendations remained relatively constant from 2000 through 2009 (P trend = .14). The adjusted odds of gaining within IOM recommendations were lower in 2006 through 2007 (adjusted odds ratio, 0.90; 95% confidence interval, 0.85–0.96) and 2008 through 2009 (adjusted odds ratio, 0.90; 95% confidence interval, 0.85–0.96) relative to 2000 through 2001.
CONCLUSION
Overall, from 2000 through 2009 the percentage of women gaining within IOM recommendations slightly decreased while mean GWG slightly increased. Efforts are needed to develop and implement strategies to ensure that women achieve GWG within recommendations.
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Pubmed ID:25637844
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Pubmed Central ID:PMC4629490
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