American journal of perinatology · 2026
Maternal, Obstetric, and Perinatal Outcomes in Late Preterm and Term Births with Gestational Diabetes versus Normoglycemia.
СтатьяResearch Support, N.I.H., IntramuralПоддержка NIH: внешняя программаПоддержка службы здравоохранения СШАНазвание и аннотация: Перевод в очереди
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Grantz Katherine L, Gleason Jessica L, Yeung Edwina, Tekola-Ayele Fasil, Putnick Diane L, Ma Yong, Scifres Christina M, Chen Zhen
Аннотация
OBJECTIVE: The objective of this study was to evaluate obstetric, maternal, and perinatal outcomes by delivery week for pregnancies with gestational diabetes mellitus (GDM) and without diabetes.
STUDY DESIGN: We conducted a secondary analysis of electronic medical record data from 9,696 (5.3%) GDM pregnancies and 173,323 pregnancies without any diabetes delivered at 34 to 40 weeks. Composite and individual outcomes included maternal (e.g., death, hypertensive disorders, hemorrhage); primary neonatal morbidity and perinatal mortality (e.g., death, ventilation use, sepsis, seizures, injury); secondary neonatal (e.g., shoulder dystocia, hypoglycemia); and neonatal respiratory support/morbidity from chart review. Modified Poisson regression with generalized estimating equations calculated adjusted relative risks (RR) for differences in outcome rates by GDM status and fetus at risk model for outcomes at delivery compared with ongoing pregnancies.
RESULTS: A higher proportion of GDM pregnancies delivered at each week prior to 39 weeks compared with no diabetes (2.5, 3.9, 7.4, 17.2, 32, and 36.9% for GDM and 1.4, 2.3, 5.0, 11.0, 24.6, and 38.4% for no diabetes, at 34, 35, 36, 37, 38, and 39 weeks, respectively, p < 0.001). Among GDM, compared with ongoing pregnancy, risk of maternal composite was higher for delivery at 37 weeks, 20.5 versus 11.6% (RR: 1.71; 95% confidence interval [CI]: 1.51-1.92) and 38 weeks, 14.9 versus 9.4% (RR: 1.62; 95% CI: 1.42-1.84) driven by hypertensive disorders (18.3% at 37 and 23.5% at 38 vs. 10.1% at 39 weeks); and risk of primary neonatal composite was higher at 37 weeks, 2.3 versus 1.1% (RR: 2.00; 95% CI: 1.33-3.00). Risk of stillbirth was higher at 37 weeks, 0.41 versus 0.11% (RR: 3.62; 95% CI: 1.22-10.75) among GDM, suggesting that it was an indication for earlier delivery.
CONCLUSION: For GDM-complicated pregnancies, earlier delivery at 37 and 38 weeks compared with ongoing pregnancy was associated with higher risk of maternal morbidity likely due to having hypertensive disorders and delivery at 37 weeks with higher risk for serious neonatal morbidity.
KEY POINTS: · Assessed outcomes in GDM pregnancies by delivery week.. · Maternal morbidity risk increased at 37 and 38 weeks.. · Neonatal death was rare and unrelated to GDM status.. · Neonatal morbidity risk increased at 37 weeks..
STUDY DESIGN: We conducted a secondary analysis of electronic medical record data from 9,696 (5.3%) GDM pregnancies and 173,323 pregnancies without any diabetes delivered at 34 to 40 weeks. Composite and individual outcomes included maternal (e.g., death, hypertensive disorders, hemorrhage); primary neonatal morbidity and perinatal mortality (e.g., death, ventilation use, sepsis, seizures, injury); secondary neonatal (e.g., shoulder dystocia, hypoglycemia); and neonatal respiratory support/morbidity from chart review. Modified Poisson regression with generalized estimating equations calculated adjusted relative risks (RR) for differences in outcome rates by GDM status and fetus at risk model for outcomes at delivery compared with ongoing pregnancies.
RESULTS: A higher proportion of GDM pregnancies delivered at each week prior to 39 weeks compared with no diabetes (2.5, 3.9, 7.4, 17.2, 32, and 36.9% for GDM and 1.4, 2.3, 5.0, 11.0, 24.6, and 38.4% for no diabetes, at 34, 35, 36, 37, 38, and 39 weeks, respectively, p < 0.001). Among GDM, compared with ongoing pregnancy, risk of maternal composite was higher for delivery at 37 weeks, 20.5 versus 11.6% (RR: 1.71; 95% confidence interval [CI]: 1.51-1.92) and 38 weeks, 14.9 versus 9.4% (RR: 1.62; 95% CI: 1.42-1.84) driven by hypertensive disorders (18.3% at 37 and 23.5% at 38 vs. 10.1% at 39 weeks); and risk of primary neonatal composite was higher at 37 weeks, 2.3 versus 1.1% (RR: 2.00; 95% CI: 1.33-3.00). Risk of stillbirth was higher at 37 weeks, 0.41 versus 0.11% (RR: 3.62; 95% CI: 1.22-10.75) among GDM, suggesting that it was an indication for earlier delivery.
CONCLUSION: For GDM-complicated pregnancies, earlier delivery at 37 and 38 weeks compared with ongoing pregnancy was associated with higher risk of maternal morbidity likely due to having hypertensive disorders and delivery at 37 weeks with higher risk for serious neonatal morbidity.
KEY POINTS: · Assessed outcomes in GDM pregnancies by delivery week.. · Maternal morbidity risk increased at 37 and 38 weeks.. · Neonatal death was rare and unrelated to GDM status.. · Neonatal morbidity risk increased at 37 weeks..