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Risk Factors in Small Infants

Ricky Wilson, MD; William P. Kanto, Jr, MD; Brian J. McCarthy, MD; Roger A. Feldman, MD

Am J Dis Child. 1982;136(9):814-816.

Abstract
• We compared the features of 45 infants with early-onset necrotizing enterocolitis (NEC) (in the first ten days of life) and 41 infants with late-onset NEC (after the tenth day of life); all weighed 1,500 g or less at birth. Infants with late-onset NEC were smaller at birth and had younger gestational ages than infants with early-onset illness. No significant differences between the two groups, however, were found in sex or race distribution, mean one- and five-minute Apgar scores, or in the relative frequency of occurrence of 30 maternal and neonatal risk factors. Intravenous alimentation was administered significantly more frequently to infants with late-onset NEC. Birth weight—specific weekly attack rates for NEC declined dramatically when infants reached the equivalent of 35 to 36 weeks' gestational age. We hypothesize that the timing of noxious events in relation to gut maturity may explain these observations.

(Am J Dis Child 1982;136:814-816)

Author Affiliations
From the Enteric Diseases Branch (Dr Wilson), Bacterial Diseases Division (Dr Feldman), Center for Infectious Diseases, and the Family Planning Evaluation Division, Center for Health Promotion and Education (Dr McCarthy), Centers for Disease Control, and the Department of Pediatrics, Emory University School of Medicine (Dr Kanto), Atlanta. Dr Wilson is now with Texas Tech University, Regional Academic Health Sciences Center, Amarillo.

Footnotes
Reprint requests to Department of Pediatrics, Texas Tech University, Regional Academic Health Sciences Center, 1400 Wallace Blvd, Amarillo, TX 79106 (Dr Wilson).

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