Association of maternal gestational weight gain with short- and long-term maternal and child health outcomes.
OBJECTIVE
The purpose of this study was to investigate the associations between gestational weight gain (GWG) and small- and large-for-gestational-age (SGA, LGA), cesarean delivery, child overweight, and maternal postpartum weight retention in a diverse sample of women in the Unites States.


METHODS
We estimated associations between GWG (continuous and within categories defined by the Institute of Medicine), maternal prepregnancy body mass index, and each outcome in 4496 births in the National Longitudinal Survey of Youth 1979, which was a prospective cohort.


RESULTS
GWG (kilograms) was associated with decreased risk of SGA and increased risk of LGA, cesarean delivery, postpartum weight retention, and child overweight independent of maternal demographic and pregnancy characteristics. Gain above the Institute of Medicine guidelines was associated with decreased risk of SGA and increased risk of all other outcomes.


CONCLUSIONS
Excessive gain may have long-term consequences for maternal and child body size, but the benefits of lower gain must be balanced against risk of SGA.
Margerison Zilko
Claire E
CE
Division of Epidemiology, School of Public Health, University of California, Berkeley, CA, USA.
Rehkopf
David
D
Abrams
Barbara
B
D001835:Body Weight; D015331:Cohort Studies; D005260:Female; D006304:Health Status; D006801:Humans; D007227:Infant Nutritional Physiological Phenomena / Q000502:physiology*; D007231:Infant, Newborn; D008297:Male; D039382:Maternal Nutritional Physiological Phenomena / Q000502:physiology*; D008431:Maternal-Fetal Exchange; D018579:Patient Selection; D011247:Pregnancy; D015430:Weight Gain / Q000502:physiology*