Psychiatric Illness and Season of Birth
ROBERT A. WOODRUFF JR. M.D.1,
SAMUEL B. GUZE M.D.1, , and
PAULA J. CLAYTON M.D.2
1 Professor of Psychiatry, Washington University School of Medicine, 4940 Audubon Ave., St. Louis, Mo. 63110
2 Associate Professor of Psychiatry, Washington University School of Medicine, 4940 Audubon Ave., St. Louis, Mo. 63110
The authors collected data from a research clinic to test the hypothesis that patients with schizophrenia and manic-depressive illness are born early in the year more frequently than would be expected by chance. No evidence of seasonal variation of birth for patients with any specific diagnosis was found.
