Any infant born at less than 37 weeks gestation is by definition "premature." Most infants born at 35 to 37 weeks gestation are relatively healthy, and they often have only brief hospital stays in newborn nurseries. The problems associated with premature infants occur with greater frequency in those of lower gestational age at birth, typically less than 35 weeks gestation.

People related to the topic: Prematurity

Katherine E. Hartmann, M.D., Ph.D.
Associate Dean for Clinical and Translational Scientist Development
Deputy Director, Institute for Medicine and Public Health
Professor of Obstetrics and Gynecology and Medicine

Hendrik Weitkamp, M.D.
Assistant Professor of Pediatrics, Division of Neonatology

Back to the topic index