Gestational age of previous twin preterm birth as a predictor for subsequent singleton preterm birth.

Publication/Presentation Date

2-1-2012

Abstract

OBJECTIVE: We sought to determine an optimal gestational-age cutoff of preterm twin deliveries for predicting subsequent singleton preterm birth (PTB).

STUDY DESIGN: We performed a retrospective study of women with a spontaneous twin delivery who subsequently had a singleton gestation. Univariate and multivariate analyses determined the risk of a spontaneous singleton PTB after a PTB of a twin gestation. Different gestational-age cutoffs of the previous twin PTB were evaluated.

RESULTS: Among 255 women, previous twin PTB at < 34 weeks' gestation was associated with an increased risk of singleton PTB (odds ratio, 9.67; 95% confidence interval, 3.07-30.47). Every twin gestational age cutoff at < 34 weeks' gestation had a significantly higher risk of subsequent singleton PTB, which was no longer significant at ≥ 34 weeks' gestation (odds ratio, 1.68; 95% confidence interval, 0.23-12.19).

CONCLUSION: In women with a previous spontaneous twin PTB at < 34 weeks' gestation, there is an increased risk of subsequent singleton PTB. A twin birth at ≥ 34 weeks' gestation is not associated with an increased risk for a subsequent singleton PTB.

Volume

206

Issue

2

First Page

1

Last Page

6

ISSN

1097-6868

Disciplines

Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods

PubMedID

22098669

Department(s)

Administration and Leadership

Document Type

Article

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