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Although necrotizing enterocolitis (NEC) is primarily a disease of prematurity, full-term infants account for approximately 10% of cases. Previous studies have reported conflicting results regarding NEC in full-term (FT) versus preterm (PT) infants. A review of all infants diagnosed with NEC at our institution over the past 3 decades was performed to identify factors associated with this disease in full-term neonates.

The charts of all infants with definitive NEC from January 1, 1972 through January 1, 2001 were reviewed. Two hundred seventy-seven patients made up the study group: 251 PT and 26 FT infants. Data regarding demographics, clinical presentation, management, outcome, and other variables were collected. FT and PT infants were compared.

Mean gestational age and birth weight in the FT group were 39.3 weeks and 3,132 g versus 30.2 weeks and 1,396 g for PT infants …