Rehospitalization in Infants Born < 29 Weeks' Gestation during the First 2 Years of Life: Risk Assessment.

Objective: This study aims to determine risk factors for rehospitalization in extremely premature infants.

Study Design: A retrospective cohort study of 157 infants born < 29 weeks' gestational age assessing risk factors for rehospitalization through 2 years of life.

Results: Multivariable logistic regression showed that an increasing number of respiratory infections (odds ratio [OR]: 1.