The seasonality of schizophrenic births in Alberta.
The usual inverse relationship between temperature of month and number of births in that month for persons later given a schizophrenic diagnosis was not found in Alberta, Canada. Since the absence of such an inverse relationship has also been noted in northern Sweden, it is suggested that the atypical pattern in both localities could be a function of the extremely harsh winters.
D000293:Adolescent; D000328:Adult; D000416:Alberta; D003080:Cold Temperature / Q000009:adverse effects; D006801:Humans; D008875:Middle Aged; D012559:Schizophrenia / Q000209:etiology*; D012621:Seasons; D013696:Temperature