title: Influence of social class on the risk of recurrence of anencephalus and spina bifida.
abstract: This study suggests that social class has an effect on the incidence of anencephalus and spina bifida, the malformations being more frequent in the lower socio-economic groups. A family study of 226 patients with a CNS malformation suggests that social class also may be important in determining the recurrence risk of such malformations: there are higher risks in social classes III, IV and V than in social classes I and II.
mesh_terms: D000757:Anencephaly / Q000453:epidemiology* / Q000235:genetics; D005260:Female; D005817:Genetic Counseling; D006801:Humans; D007231:Infant, Newborn; D012008:Recurrence; D012306:Risk; D012923:Social Class; D012959:Socioeconomic Factors; D016136:Spina Bifida Occulta / Q000453:epidemiology* / Q000235:genetics; D006113:United Kingdom