Medical Genetics Schizophrenia is equally represented in women and men the onset of the lIness generally occurs at a later age in women than in men(between ages 23 and 35 in women versus 18 to 25 for men) Not only do women generally present with schizophrenia at later ages but the phenomenon of late onset schizophrenia (40+ years) is almost entirely a female oneMedical Genetics Schizophrenia is equally represented in women and men. The onset of the illness generally occurs at a later age in women than in men (between ages 23 and 35 in women versus 18 to 25 for men). Not only do women generally present with schizophrenia at later ages, but the phenomenon of late onset schizophrenia (40+ years) is almost entirely a female one