Newman S C, Bland R C
Department of Psychiatry, University of Alberta, Edmonton.
Can J Psychiatry. 1988 Nov;33(8):705-6. doi: 10.1177/070674378803300806.
Numerous studies have demonstrated that a greater than expected number of schizophrenics are born during the winter months. The present investigation examined this phenomenon in Alberta. The study population consisted of 1,101 schizophrenic patients admitted to either of the two provincial mental hospitals during 1976-1983 and who were born in Canada. After controlling for year of birth, no seasonality effect was found.
大量研究表明，在冬季出生的精神分裂症患者数量超出预期。本调查在艾伯塔省对这一现象进行了研究。研究对象包括1976年至1983年期间入住该省两家精神病院且出生在加拿大的1101名精神分裂症患者。在对出生年份进行控制后，未发现季节性效应。
