Fertility of the sibs of schizophrenic patients.
This investigation has provided evidence against the hypothesis that heterozygous carriers of schizophrenic gene have a reproductive advantage through enhanced fertility. An advantage arising from lower mortality between birth and the end of the reproductive period was not investigated, but should be examined before we search for other explanations of the apparently stable polymorphism of schizophrenia.
D000367:Age Factors; D005260:Female; D005298:Fertility; D006579:Heterozygote; D006801:Humans; D008297:Male; D008393:Marriage; D009864:Ontario; D010298:Parity; D011110:Polymorphism, Genetic; D012559:Schizophrenia / Q000235:genetics*; D012737:Sex Factors