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The association between maternal factors and perinatal outcomes in triplet pregnancies
Barbara Luke1, Clark Nugent, Cosmas van de Ven
1Department of Obstetrics and Gynecology, University of Miami School of Medicine, FL 33136, USA.
Objective:
The purpose of this study was to evaluate the associations between maternal factors and outcomes in triplet pregnancies.
Study Design:
This was a historic cohort study of 194 triplet pregnancies of >or=24 weeks of gestation that were delivered from 1983 through 2001 from five medical centers.
Results:
In analyses that were limited to pregnancies with all live-born triplets (178 pregnancies), women with a previous good outcome (>2500 g + >37 weeks of gestation) had longer gestations (+7.9 days, P =.03), better rates of fetal growth (+4.9 g/wk, P <.0001), and higher birth weights (+153 g, P <.0001). Maternal weight gains of <36 pounds by 24 weeks of gestation were associated with lower birth weights (-197 g, P <.0001), and fetal growth rates at
Conclusion:
Previous obstetric outcome and weight gain by 24 weeks of gestation were associated significantly with fetal growth rate and birth weight; fetal growth rate, in turn, was associated significantly with length of gestation.