Open AccessAssociation of pre‐pregnancy maternal body mass and maternal weight gain to newborn outcomes in twin pregnancies
Author(s) -
YEH JOHN,
SHELTON JAMES A.
Publication year - 2007
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.1080/00016340701417026
Subject(s) - medicine , pregnancy , obstetrics , gestation , birth certificate , weight gain , twin pregnancy , odds ratio , birth weight , body mass index , population , gynecology , body weight , genetics , environmental health , biology
Background. The rate of twin gestations is now about 3% of all pregnancies. The study objective was to investigate the association between twin pregnancy newborn outcomes and maternal weight. Methods. Birth certificate information of 1,342 sets of live‐born twin deliveries collected in a regional perinatal data system from a contiguous eight‐county area in upstate New York was studied. Results. The obese maternal pre‐pregnancy BMI category was correlated with an increased odds ratio of a “Type I” (both a ≥36‐week gestation and a ≥2,500‐g average twin weight) newborn outcome (adjusted OR 1.92; 95% CI: 1.43, 2.56). For total maternal weight gain, there was an increased odds ratio of having a Type I newborn outcome with >25 kg weight gain (adjusted OR 2.24; 95% CI: 1.51, 3.33). Conclusions. Based on this population‐based study, we conclude that both maternal pre‐pregnancy BMI and total maternal weight gain are associated with twin newborn outcomes.