Low gestational weight gain and risk of adverse perinatal outcomes in obese and severely obese women
Background: Our objective was to estimate associations between gestational weight gain z
scores and preterm birth, neonatal intensive care unit admission, large-and small-for-
gestational age birth, and cesarean delivery among grades 1, 2, and 3 obese women.
Methods: We included singleton infants born in Pennsylvania (2003–2011) to grade 1 (body
mass index 30–34.9 kg/m 2, n= 148,335), grade 2 (35–39.9 kg/m 2, n= 72,032), or grade 3
(≥ 40 kg/m 2, n= 47,494) obese mothers. Total pregnancy weight gain (kg) was converted to …
scores and preterm birth, neonatal intensive care unit admission, large-and small-for-
gestational age birth, and cesarean delivery among grades 1, 2, and 3 obese women.
Methods: We included singleton infants born in Pennsylvania (2003–2011) to grade 1 (body
mass index 30–34.9 kg/m 2, n= 148,335), grade 2 (35–39.9 kg/m 2, n= 72,032), or grade 3
(≥ 40 kg/m 2, n= 47,494) obese mothers. Total pregnancy weight gain (kg) was converted to …