To the Editor.—
In his letter, "Causes of Neonatal Mortality," Bader1 displays data (Table 2) that contain a remarkable finding, in addition to his findings that relate to the role of lethal congenital anomalies in infant mortality but on which his letter does not remark. Specifically, his additional finding is the relationship between birth weight and postneonatal sudden infant death syndrome (SIDS).Of the 690 postneonatal deaths of infants with birth weights of 2,500 g or greater, 59.1% were caused by SIDS. The corresponding SIDS percentages of postneonatal deaths of infants with birth weights of 1,500 to 2,499 g and less than 1,500 g were 48.3% and 27.8%, respectively. (The "<500 g" datum of column 1, line 2 of Table 2 is surely a typographic error.)Bader's data appear to be in conflict with pronouncements by many SIDS researchers, viz, that infants of higher birth weights are at less
Raring RH. Causes of Neonatal Mortality. JAMA. 1984;252(14):1853. doi:10.1001/jama.1984.03350140013008
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