• Richard Deulofeut, Golde Dudell, and Augusto Sola.
• Emory University School of Medicine, Division of Neonatal-Perinatal Medicine, Atlanta, Georgia, USA. deulofeut@post.harvard.edu
• Acta Paediatr. 2007 Jul 1; 96 (7): 990-4.

ObjectiveTo examine gender-specific differences in response to the O(2) saturation (SpO(2)) targets aimed at avoiding hyperoxia in very low birth weight infants (VLBW).MethodsAnalysis of a prospectively collected database of all infants ResultsOf the 497 infants that met enrolment criteria, 297 (60%) were born during period I and 140 (47%) of them were male. During period II, 200 infants were born and 101 (50%) were male. Analysis by gender showed that the rate of retinopathy of prematurity, bronchopulmonary dysplasia and length of stay is significantly better for female infants than males on period II compared to period I. Neither gender experienced increased short-term neurological morbidity in response to lower SpO(2) targets.ConclusionsThere is a significant gender-specific difference favouring females in the beneficial effects produced by avoiding high SpO(2) and hyperoxia, with no difference in the distribution of any potential short-term detrimental effects.

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