作者: R. A. Martin , R. M. Fineman , L. B. Jorde , John M. Opitz
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摘要: We report here retrospective data on 991 liveborn and stillborn infants with neural tube defects (NTDs) born to Utah residents from January 1, 1940 December 31, 1979. Data were obtained multiple sources including approximately 1.25 million vital statistics records several hundred physician hospital charts. Causal heterogeneity among NTD patients is presumed because 6% of our cases have other congenital anomalies not part the field defect. A significant association NTDs oral clefts noted. Sex ratios empiric recurrence risks for isolated associated major malformations are also calculated.