The hypothesis that mothers of winter-spring-born schizophrenics have an unusual pattern of conception which results in an excess of winter-spring births was tested by studying the distribution of birth-dates of 401 siblings of 120 winter-spring-born schizophrenics and 157 siblings of 59 winter-spring-born controls. All analyses were gender-specific. The results suggest there is no association between the probability of a winter-spring date of birth and being a sibling of a winter-spring-born schizophrenic or control.
|Original language||English (US)|
|Number of pages||5|
|Journal||British Journal of Psychiatry|
|State||Published - Jan 1 1992|
ASJC Scopus subject areas
- Psychiatry and Mental health