title: Keratoconus: maternal age and social class.
abstract: A group of patients (150) suffering from keratoconus were asked their mother's age at their birth. A statistically significant excess of older mothers as compared with the general population was found. The social class of the patients was found to have a distribution different from the general population, and it is suggested that this is related to the patient's maternal age.
mesh_terms: D000328:Adult; D004739:England; D005260:Female; D006801:Humans; D007640:Keratoconus / Q000209:etiology*; D008423:Maternal Age; D008875:Middle Aged; D018566:Pregnancy, High-Risk; D012923:Social Class