References
- Morrison AS. Screening in chronic disease2nd edn. Oxford University Press, New York 1992
- Goldstein G, Hall W, Andrews G. The incidence of schizophrenia in New South Wales, Australia. Acta Psychiatrica Scandinavica 1984; 70: 220–227
- Hafner H, Maurer K, Loffler W, Riecher‐Rossler A. The influence of age and sex on the onset and early course of schizophrenia. British Journal of Psychiatry 1993; 162: 80–86
- McGorry PD, McFarlane C, Patton GC, et al. The prevalence of prodromal features of schizophrenia in adolescence: a preliminary survey. Acta Psychiatrica Scandinavica 1995; 92: 241–249
- Eaton WE, Badawi M, Melton B. Prodromes and precursors: epidemiologic data for primary prevention of disorders with slow onset. American Journal of Psychiatry 1995; 152: 967–972
- Irwig L, Glasziou P, Berry G, Chock C, Mock P, Simpson JM. Efficient study designs to assess the accuracy of screening tests. American Journal of Epidemiology 1994; 140: 759–769
- O'Toole BI. Risk. Preventive intervention and outcome: methodological and statistical issues. Handbook of preventive psychiatry, B Raphael, G Burrows. Elsevier, Amsterdam 1995; 51–70
- O'Toole BI, Driver B, Britt H, Bridges‐Webb C. Using general practitioners to measure community morbidity. International Journal of Epidemiology 1991; 20: 1125–1132
- Driver B, Britt H, O'Toole BI, Harris M, Bridges‐Webb C, Neary S. How representative are patients in general practice morbidity surveys?. Family Practice 1991; 8: 261–268
- Bross ID. Why proof of safety is much more difficult that proof of hazard. Biometrics 1985; 41: 785–793
- Miettinen OS. Proportion of disease caused or prevented by a given exposure, trait or intervention. American Journal of Epidemiology 1974; 99: 325–332
- Fleiss JL. Statistical methods for rates and proportions2nd edn. Wiley, New York 1981
- Baldessarini RJ, Finklestein S, Arana GW. The predictive power of diagnostic tests and the effect of prevalence of illness. Archives of General Psychiatry 1983; 40: 569–573
- Bell RQ. Multiple‐risk cohorts and segmenting risk as possible solutions to the problem of false positives in risk for the major psychoses. Psychiatry 1992; 55: 370–381
- Bridges‐Webb C, Britt H, Miles DA, Neary S, Charles J, Traynor V. Morbidity and treatment in general practice in Australia 1990–91. Medical Journal of Australia 1992; 19(Suppl. 1)S56
- Sackett DL, Haynes LB, Tugwell P. Clinical epidemiology: a basic science for clinical medicine. Little, Brown, Boston 1985
- Gotzsche P, Olsen O. Is screening for breast cancer with mammography justifiable?. Lancet 2000; 355: 129–134