TY - JOUR
T1 - Adverse Maternal and Neonatal Outcomes in Indicated Compared with Spontaneous Preterm Birth in Healthy Nulliparas
T2 - A Secondary Analysis of a Randomized Trial
AU - Tita, Alan T.
AU - Doherty, Lindsay
AU - Roberts, Jim M.
AU - Myatt, Leslie
AU - Leveno, Kenneth J.
AU - Varner, Michael W.
AU - Wapner, Ronald J.
AU - Thorp, John M.
AU - Mercer, Brian M.
AU - Peaceman, Alan
AU - Ramin, Susan M.
AU - Carpenter, Marshall W.
AU - Iams, Jay
AU - Sciscione, Anthony
AU - Harper, Margaret
AU - Tolosa, Jorge E.
AU - Saade, George R.
AU - Sorokin, Yoram
N1 - Funding Information:
The project described was supported by grants from the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) [HD34208, HD27869, HD40485, HD40560, HD40544, HD34116, HD40512, HD21410, HD40545, HD40500, HD27915, HD34136, HD27860, HD53118, HD53097, HD27917, and HD36801]; the National Heart, Lung, and Blood Institute; and the National Center for Research Resources [M01 RR00080, UL1 RR024153, UL1 RR024989], and its contents do not necessarily represent the official view of NICHD, NHLBI, NCRR, or NIH.
Publisher Copyright:
© 2018 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Objective To compare the risks of adverse maternal and neonatal outcomes associated with spontaneous (SPTB) versus indicated preterm births (IPTB). Methods A secondary analysis of a multicenter trial of vitamin C and E supplementation in healthy low-risk nulliparous women. Outcomes were compared between women with SPTB (due to spontaneous membrane rupture or labor) and those with IPTB (due to medical or obstetric complications). A primary maternal composite outcome included: death, pulmonary edema, blood transfusion, adult respiratory distress syndrome (RDS), cerebrovascular accident, acute tubular necrosis, disseminated intravascular coagulopathy, or liver rupture. A neonatal composite outcome included: neonatal death, RDS, grades III or IV intraventricular hemorrhage (IVH), sepsis, necrotizing enterocolitis (NEC), or retinopathy of prematurity. Results Of 9,867 women, 10.4% (N = 1,038) were PTBs; 32.7% (n = 340) IPTBs and 67.3% (n = 698) SPTBs. Compared with SPTB, the composite maternal outcome was more frequent in IPTB-4.4% versus 0.9% (adjusted odds ratio [aOR], 4.0; 95% confidence interval [CI], 1.4-11.8), as were blood transfusion and prolonged hospital stay (3.2 and 3.7 times, respectively). The frequency of composite neonatal outcome was higher in IPTBs (aOR, 1.8; 95% CI, 1.1-3.0), as were RDS (1.7 times), small for gestational age (SGA) < 5th percentile (7.9 times), and neonatal intensive care unit (NICU) admission (1.8 times). Conclusion Adverse maternal and neonatal outcomes were significantly more likely with IPTB than with SPTB.
AB - Objective To compare the risks of adverse maternal and neonatal outcomes associated with spontaneous (SPTB) versus indicated preterm births (IPTB). Methods A secondary analysis of a multicenter trial of vitamin C and E supplementation in healthy low-risk nulliparous women. Outcomes were compared between women with SPTB (due to spontaneous membrane rupture or labor) and those with IPTB (due to medical or obstetric complications). A primary maternal composite outcome included: death, pulmonary edema, blood transfusion, adult respiratory distress syndrome (RDS), cerebrovascular accident, acute tubular necrosis, disseminated intravascular coagulopathy, or liver rupture. A neonatal composite outcome included: neonatal death, RDS, grades III or IV intraventricular hemorrhage (IVH), sepsis, necrotizing enterocolitis (NEC), or retinopathy of prematurity. Results Of 9,867 women, 10.4% (N = 1,038) were PTBs; 32.7% (n = 340) IPTBs and 67.3% (n = 698) SPTBs. Compared with SPTB, the composite maternal outcome was more frequent in IPTB-4.4% versus 0.9% (adjusted odds ratio [aOR], 4.0; 95% confidence interval [CI], 1.4-11.8), as were blood transfusion and prolonged hospital stay (3.2 and 3.7 times, respectively). The frequency of composite neonatal outcome was higher in IPTBs (aOR, 1.8; 95% CI, 1.1-3.0), as were RDS (1.7 times), small for gestational age (SGA) < 5th percentile (7.9 times), and neonatal intensive care unit (NICU) admission (1.8 times). Conclusion Adverse maternal and neonatal outcomes were significantly more likely with IPTB than with SPTB.
KW - indicated preterm birth
KW - preeclampsia
KW - pregnancy outcomes
KW - spontaneous preterm birth
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U2 - 10.1055/s-0037-1608787
DO - 10.1055/s-0037-1608787
M3 - Article
C2 - 29190847
AN - SCOPUS:85036570731
VL - 35
SP - 624
EP - 631
JO - American Journal of Perinatology
JF - American Journal of Perinatology
SN - 0735-1631
IS - 7
ER -