Neighbourhood variation in incidence of schizophrenia
Open Access
- 1 March 2000
- journal article
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 176 (3), 243-248
- https://doi.org/10.1192/bjp.176.3.243
Abstract
Background: Neighbourhood characteristics may influence the risk of psychosis, independently of their individual-level equivalents.Aims: To examine these issues in a multi-level model of schizophrenia incidence.Method: Cases of schizophrenia, incident between 1986 and 1997, were identified from the Maastricht Mental Health Case Register. A multi-level analysis was conducted to examine the independent effects of individual-level and neighbourhood-level variables in 35 neighbourhoods.Results: Independent of individual-level single and divorced marital status, an effect of the proportion of single persons and proportion of divorced persons in a neighbourhood was apparent (per 1% increase respectively: RR=1.02; 95% CI 1.00–1.03; and RR=1.12, 95% CI 1.04–1.2.1). Single marital status interacted with the neighbourhood proportion of single persons, the effect being stronger in neighbourhoods with fewer single-person households.Conclusions: The neighbourhood environment modifies the individual risk for schizophrenia. Premorbid vulnerability resulting in single marital status may be more likely to progress to overt disease in an environment with a higher perceived level of social isolation.Keywords
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