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Am J Obstet Gynecol. 2012 Mar;206(3):222.e1-6. doi: 10.1016/j.ajog.2012.01.007.

School-age outcomes of late preterm infants in New York City.

Author information

  • 1Department of Obstetrics, Gynecology, and Reproductive Science, Yale University School of Medicine, New Haven, CT 06520-8063, USA. lipkind@yale.edu.

Abstract

OBJECTIVE:

This study compares school-age outcomes among preterm (PT) (32 0/7-<34 weeks), late PT (LP) (34 0/7-<37 weeks), and full-term (FT) infants to assess cognitive sequelae of LP births.

STUDY DESIGN:

We obtained linked birth and educational data for all nonanomalous singleton infants born 1994 through 1998 in New York City who had a third-grade standardized test score (n = 215,138).

RESULTS:

Children delivered LP and PT had 30% and 50% higher adjusted odds of needing special education than those delivered FT (adjusted odds ratio, 1.34; 95% confidence interval, 1.29-1.40; and adjusted odds ratio, 1.53; 95% confidence interval, 1.30-1.69). They also had lower adjusted math and English scores than those delivered FT (math: 7% and 10% of SD, respectively; English: 4% and 6% of SD). A linear association between gestational age and test scores was seen through 39 weeks' gestation.

CONCLUSION:

There is a significant risk of developmental differences in PT and LP infants compared with FT infants.

Copyright © 2012 Mosby, Inc. All rights reserved.

PMID:
22381605
[PubMed - indexed for MEDLINE]
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