EPIDEMIOLOGIC ASPECTS OF MENDELIAN SYNDROMES IN A SPANISH POPULATION-SAMPLE .1. AUTOSOMAL DOMINANT MALFORMATION SYNDROMES

Using a sample of 710,815 liveborn infants throughout Spain, monitored from April, 1976, to December, 1988, by the Spanish Collaborative Study of Congenital Malformations (ECEMC), we estimated the prevalence of each recognized autosomal dominant malformation syndrome for a total prevalence figure of 12.1 per 100,000 live births, including all detected autosomal dominant malformation syndromes. We estimated that the mutation rate for those syndromes was 48.5 per 1,000,000 gametes. The geographical distribution of these syndromes was homogeneous in the Spanish Regions.