Triplet gestation outcomes in relation to maternal prepregnancy body mass index and weight gain.
OBJECTIVE
To study prepregnancy maternal body mass index (BMI) and overall maternal weight gain in triplet gestations in relation to maternal and newborn outcomes.


METHODS
This was a retrospective study of birth certificate data of all live-born triplet gestations occurring between 1999 and 2003 in an eight-county region in New York. An analysis of computerized birth certificate data for variables related to pregnancy and newborn outcomes was conducted, looking at neonatal birth weight, neonatal gestational age, and the occurrence of the maternal pregnancy complications of gestational diabetes, gestational hypertension, and preeclampsia.


RESULTS
In 56 triplet gestations studied, the prepregnancy BMI was not associated with mean newborn birth weights and gestational age at delivery. The total maternal weight gain was associated with increasing mean birth weight and higher gestational age at delivery. Pregnancy complications in triplet pregnancies of gestational diabetes and gestational hypertension were associated with prepregnancy BMI, but not maternal weight gain.


CONCLUSIONS
For triplet gestations, a normal prepregnancy BMI and a total gestational weight gain of at least 15.9 - 20.5 kg (35 - 45 lb) are associated with fewer pregnancy complications.
Department of Gynecology-Obstetrics, University at Buffalo, State University of New York, Buffalo, NY 14222, USA.
Abeer
A
Eddib
Jan
J
Penvose-Yi
James A
JA
Shelton
John
J
Yeh
D000328:Adult; D001724:Birth Weight; D015992:Body Mass Index; D016640:Diabetes, Gestational / Q000453:epidemiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D046110:Hypertension, Pregnancy-Induced / Q000453:epidemiology; D009518:New York / Q000453:epidemiology; D050177:Overweight; D011247:Pregnancy; D012189:Retrospective Studies; D014310:Triplets; D015430:Weight Gain