Statistics from Altmetric.com
General population in Southeast London, Nottingham, and Bristol, UK; September 1997 to August 1999.
1 029 802 people aged 16–64 years living in the three study areas.
People presenting to mental health services for the first time with delusions, hallucinations, thought disorder, or negative symptoms of schizophrenia were referred for assessment interview. Patient information systems for London and Nottingham were additionally searched for relevant psychotic diagnostic codes. Interviewees were assessed with the PSE SCAN v.2.0. Case notes of people unable to be interviewed were assessed with the Item Group Checklist of the SCAN interview. Sociodemographic factors …
For correspondence: Dr Paul Fearon, Box 63, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK;
Sources of funding: UK Medical Research Council, Stanley Medical Research Institute.
Competing interests: None declared.
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