Month of birth and schizophrenia in Korea. Sex, family history, and handedness.

This study investigates whether there is any difference in the month of birth between people with schizophrenia and controls in Korea. When 1606 patients with schizophrenia were compared with 4582 age- and sex-matched controls, there was no statistically significant difference in the month of birth, the season of birth of schizophrenic patients was not related to sex, family history or handedness.