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Obstet Gynecol. 1996 Jun;87(6):917-22.

Pregnancy outcome at age 40 and older.

Author information

  • 1Department of Obstetrics, Gynecology, and Reproductive Science, Mount Sinai Medical Center, New York, New York, USA.

Abstract

OBJECTIVE:

To examine pregnancy outcome among women age 40 years and older.

METHODS:

A retrospective cohort study, including 1404 pregnant women at least 40 years of age and 6978 controls age 20-29 years, was conducted. The two groups were stratified, according to parity, to facilitate separate analysis. Associations between maternal age and pregnancy outcomes were assessed with the contingency chi 2 or two-tailed Fisher exact test. Multiple logistic regression was used to evaluate these associations and allowed for calculation of adjusted odds ratios (OR).

RESULTS:

Older gravidas were more likely to develop gestational diabetes (nulliparas: OR 2.7, 95% confidence interval [CI] 1.9-3.7; multiparas: OR 3.8, 95% CI 2.7-5.4), preeclampsia (nulliparas: OR 1.8, 95% CI 1.3-2.6; multiparas: OR 1.9, 95% CI 1.2-2.9), and placenta previa (nulliparas: OR 13.0, 95% CI 4.8-35.0; multiparas: OR 6.4, 95% CI 2.6-15.6). Older women were also at increased risk for cesarean delivery (nulliparas: OR 3.1, 95% CI 2.6-3.7; multiparas: OR 3.3, 95% CI 2.6-4.1), operative vaginal delivery (nulliparas: OR 2.4, 95% CI 1.9-2.9; multiparas: OR 1.5, 95% CI 1.2-1.9), and induction of labor (nulliparas: OR 1.5, 95% CI 1.2-1.8; multiparas: OR 1.4, 95% CI 1.1-1.7). Older nulliparas had an increased incidence of abnormal labor patterns (OR 1.4, 95% CI 1.2-1.7), neonatal intensive care unit admissions (OR 1.6, 95% CI 1.2-2.2), and low 1-minute Apgar scores (OR 2.3, 95% CI 1.1-4.9). Older multiparas were more likely to experience fetal distress (OR 2.0, 95% CI 1.4-2.8), antepartum vaginal bleeding (OR 1.8, 95% CI 1.1-3.1), and preterm premature rupture of membranes (OR 1.7, 95% CI 1.1-2.9).

CONCLUSION:

Although maternal morbidity was increased in the older gravidas, the overall neonatal outcome did not appear to be affected.

PMID:
8649698
[PubMed - indexed for MEDLINE]
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