Persistence of underweight status among late preterm infants.

ABSTRACT:

Objective

To determine the association of late preterm gestation (34-36 weeks' gestation) with underweight status in infancy.

Design

Retrospective cohort study.

Setting

Thirty-one primary care sites within a hospital-owned network, from January 1, 2007, through June 30, 2009.

Participants

Seven thousand eight hundred sixty-six infants with gestational ages ranging from 34 to 42 weeks, followed up through the first 18 months of life. Analytic sample consisted of 7624 infants examined at 6 months of age; 7132, at 1 year; and 6957, at 18 months.

Main exposure

Late preterm (34-36 weeks), early term (37-38 weeks), or full-term (39-42 weeks) gestation.

Main outcome measures

Weight-for-age z score of 2 or less at 6, 12, and 18 months.

Results

Comp

SUBMITTER: Goyal NK 

PROVIDER: S-EPMC11520236 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature