American Psychiatric Association (1994) Diagnostic and Statistical Manual of Mental Disorders (4th edn). Washington, DC: APA.
Bernadt, M.W. & Murray, R. M. (1986) Psychiatric disorder, drinking and alcoholism: what are the links?
British Journal of Psychiatry, 148, 393–400.
Blanchard, J. J., Brown, S. A., Horan, W., et al (2000) Substance use disorders in schizophrenia: review, integration and a proposed model. Clinical Psychology Review, 20, 207–234.
Brown, S. (1998) Substance misuse in a chronic psychosis population. Psychiatric Bulletin, 22, 595–598.
Brown, S., Barraclough, B. & Inskip, H. (2000) Causes of the excess mortality of schizophrenia. British Journal of Psychiatry, 177, 212–217.
Carstairs, V. & Morris, R. (1991) Deprivation and Health in Scotland. Aberdeen: Aberdeen University Press.
Drake, R. E., Osher, F. C. & Wallach, M. A. (1989) Alcohol use and abuse in schizophrenia. Journal of Nervous and Mental Disease, 177, 408–414.
Duke, P. J., Pantelis, C. & Barnes, T. R. E. (1994) South Westminster schizophrenia survey. Alcohol use and its relationship to symptoms, tardive dyskinesia and illness onset. British Journal of Psychiatry, 164, 630–636.
Hughes, J. R., Hatsukami, D. K., Mitchell, J. E., et al (1986) Prevalence of smoking among psychiatric outpatients. American Journal of Psychiatry, 143, 993–997.
Kelly, C. & McCreadie, R.G. (1999) Smoking habits, current symptoms and premorbid characteristics of schizophrenic patients in Nithsdale, Scotland. American Journal of Psychiatry, 156, 1751–1757.
McCreadie, R.G. (1982) The Nithsdale schizophrenia survey: I. Psychiatric and social handicaps. British Journal of Psychiatry, 140, 582–586.
McGuffin, P., Farmer, A. & Harvey, I. (1991) A polydiagnostic application of operational criteria in studies of psychotic illness. Archives of General Psychiatry, 48, 764–770.
Menezes, P. R., Johnson, S., Thornicroft, G., et al (1996) Drug and alcohol problems among individuals with severe mental illness in south London. British Journal of Psychiatry, 168, 612–619.
Regier, D. A., Farmer, M. E., Rae, D. S., et al (1990) Comorbidity of mental disorders with alcohol and other drug abuse: results from the epidemiological catchment area (ECA) study. JAMA, 264, 2511–2518.
Scottish Office (1997) A Framework for Mental Health Services in Scotland. Edinburgh: The Scottish Office.
Siegfried, N. (1998) A review of comorbidity: major mental illness and problematic substance use. Australia and New Zealand Journal of Psychiatry, 24, 707–717.
Torrey, E. F. & Bowler, A. (1990) Geographical distribution of insanity in America: evidence for an urban factor. Schizophrenia Bulletin, 16, 591–604.
Waldron, G., Chalmers, J., Bone, A., et al (1995) Health and Lifestyles in Dumfries & Galloway in 1995. Dumfries: Dumfries & Galloway Health Board.
World Health Organization (1992) The ICD–10 Classification of Mental and Behavioural Disorders. Geneva: WHO.
World Health Organization (1994) Schedules for Clinical Assessment in Neuropsychiatry. . Geneva: WHO.