LAUSR

Retrospective studies on the relationship of gestational weight gain (GWG) with pregnancy outcomes such as preterm delivery and preeclampsia are inconsistent. We examined the association of longitudinally assessed GWG above (excessive) and below (insufficient) the IOM guidelines with maternal-infant outcomes from the Camden study - a large prospective cohort in young pregnant women (n=2,444, African-American 38%, Hispanic 45%, Caucasian 17%, age 22 ± 5.2 yr., BMI 26 ± 6 kg/m2). All of the analyses were multivariable adjusted. Excessive GWG was 48%, 53%, 56% and 58% in all pregnancies and insufficient GWG was 25%, 27%, 23%, 21% assessed at gestational week of 24, 28, 32 and at delivery, respectively. At delivery, insufficient GWG was associated with increased risk of preterm delivery ( Disclosure X. Chen: None. T.O. Scholl: None. Funding National Institutes of Health (R01MD007828)