1. Nightingale F. Notes on hospitals. 3rd ed. London: Longman Green; 1863.
2. Buckle F. Vital and economical statistics of the hospitals, infirmaries, etc of England and Wales for the year 1863. London: Churchill; 1865.
3. National Confidential Enquiry into Perioperative Deaths (NCEPOD) Report 1992. London: NCEPOD; 1992.
4. Jarman B, Lang H, Ruggles R, Wallace M, Gault S, Astin P. The contribution of London’s academic medicine to healthcare and the economy – report commissioned by the deans of the medical schools of the University of London. London: University of London; 1997.
5. Commission on Professional Hospital Activities. Risk adjusted hospital mortality norms 1986 workbook. Ann Arbor, MI: CPHA; 1987.
6. DuBois RW, Rogers WH, Moxley JH, Draper D, Brook RH. Hospital inpatient mortality: is it a predictor of quality? N Engl J Med. 1987;317:1674–1680. [PubMed] 7. Fottler DM, Slovensky DJ, Rogers SJ. Public release of hospital specific death rates, guidelines for health care executives. Hosp Health Serv Administration. 1987;32(3):343–356. [PubMed] 8. Blumberg MS. Comments on HCFA hospital death rate statistical outliers. Health Serv Res. 1987;21:715–739. [PMC free article] [PubMed] 9. Thomas JW, Hofer TP. Research evidence on the validity of risk-adjusted mortality rate as a measure of hospital quality of care. Med Care Res Rev. 1998;55:371–404. [PubMed] 10. Chassin MR, Park RE, Lohr KN, Keesey J, Brook RH. Differences among hospitals in Medicare patient mortality. Health Serv Res. 1989;24:1–31. [PMC free article] [PubMed] 11. Bradbury RC, Stearns FE, Steen PM. Interhospital variations in admission severity—adjusted hospital mortality and morbidity. Health Serv Res. 1991;26:407–424. [PMC free article] [PubMed] 12. Al-Haider AS, Wan TTH. Modelling organizational determinants of hospital mortality. Health Serv Res. 1991;26:303–323. [PMC free article] [PubMed] 13. Park RE, Brook RH, Kosecoff J, Keesey J, Rubenstein L, Keeler E. Explaining variations in hospital death rates, randomness, severity of illness, quality of care. JAMA. 1990;264:484–490. [PubMed] 14. Iezzoni LI, Ash AS, Shwartz M, Daley J, Hughes JS, Mackiernan YD. Judging hospitals by severity-adjusted mortality rates: the influence of the severity-adjustment method. Am J Public Health. 1996;86:1379–1387. [PubMed] 15. Iezzoni LI. The risks of risk adjustment. JAMA. 1997;278:1600–1607. [PubMed] 16. Goss MEW, Read JI. Evaluating the quality of hospital care through severity adjusted death rates: some pitfalls. Med Care. 1974;12:202. [PubMed] 17. Thomas JW, Holloway JJ, Guire KE. Validating risk-adjusted mortality as an indicator for quality of care. Inquiry. 1993;30:6–22. [PubMed] 18. Hartz AJ, Gottlieb MS, Kuhn EM, Rimm AA. The relationship between adjusted hospital mortality and the results of peer review. Health Serv Res. 1993;27:765–777. [PMC free article] [PubMed]
19. Lipworth L, Lee JAH, Morris JN. Case fatality in teaching and nonteaching hospitals, 1956-1959. Lancet. 1963;i:71.
20. Palmer HR, Reilly MC. Individual and institutional variables which may serve as indicators of quality of medical care. Med Care. 1979;18:693–717. [PubMed] 21. Luft HS, Hunt SS. Evaluation of individual hospital quality through outcome statistics. JAMA. 1986;255:2780. [PubMed] 22. Hartz AJ, Krakauer H, Kuhn EM, Young M, Jacobsen SJ, Greer G. Hospital characteristics and mortality rates. N Engl J Med. 1989;321:1720–1725. [PubMed]
23. Department of Health. Hospital episode statistics. England: financial years 1991-92, 1992-93, 1993-94 and 1994-95. London: DoH; 1993-1996.
24. Office of Population Censuses and Surveys. 1991 census definitions. Great Britain. London: HMSO; 1992.
25. Dale A, Marsh C, editors. The 1991 census users guide. London: HMSO; 1993.
26. NHS Executive. Hospital and ambulance services: the patient’s charter comparative performance guide 1993-1994. London: Department of Health; 1995.
27. Department of Health. Waiting times for first outpatient appointments in England: quarter ended 30 September 1994. Statistical bulletin 1995/3. London: DoH; 1995.
28. Department of Health. GMS (general medical services) GMP (general medical practitioner) census. London: DoH; 1997.
29. Bruster S, Jarman B, Bosanquet N, Weston D, Erens R, Delbanco TL. The patient’s view—a national survey of hospital patients. BMJ. 1994;309:1542–1546. [PMC free article] [PubMed] 30. Jarman B. Underprivileged areas: validation and distribution of scores. BMJ. 1984;289:1587–1592. [PMC free article] [PubMed]
31. Townsend P, Phillimore P, Beattie A. Bristol: Northern RHA, University of Bristol; 1986. inequalities in health in the Northern region.
32. Carstairs V, Morris R. Deprivation and health in Scotland. Aberdeen: Aberdeen University Press; 1991.
33. Office of Population Censuses and Surveys. Classification of occupations 1980. London: HMSO; 1980.
34. Greenfield S, Aronow HU, Elashoff RM, Watanabe D. Flaws in mortality data: the hazards of ignoring comorbid disease. JAMA. 1988;260:2253–2255. [PubMed] 35. Green J, Wintfeld N, Sharkey P, Passman LJ. The importance of severity of illness in assessing hospital mortality. JAMA. 1990;263:241–246. [PubMed] 36. Dicing with death rates (editorial) Lancet. 1993;341:1183–1184. [PubMed] 38. McKee M, Hunter D. Mortality league tables: do they inform or mislead? Qual Health Care. 1995;4:5–12. [PMC free article] [PubMed] 39. Goldfarb MG, Coffey RM. Case mix differences between teaching and non-teaching hospitals. Inquiry. 1987;24:68–84. [PubMed] 40. Charlson ME, Pompei P, Ales KL, MacKenzie CR. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chron Dis. 1987;40:373–383. [PubMed] 41. Orchard C. Measuring the effects of casemix on outcomes. J Eval Clin Pract. 1996;2:111–121. [PubMed]
42. Royston JP. A simple method for evaluating the Shapiro Francia W test for non-normality. Statistician. 1983;32:297–230.
43. Royston P, Altman DG. Regression using fractional polynomials of continuous covariates: parsimonious parametric modelling (with discussion) Appl Stat. 1994;43:429–467.
44. Vincent C. Framework for analysing risk and safety in clinical medicine. BMJ. 1998;316:1154–1157. [PMC free article] [PubMed]
45. OECD. Health data—a comparative analysis of 29 countries. Paris: OECD; 1998.
46. Kassirer JP. Hospitals, heal yourselves. N Engl J Med. 1999;340:309–310. [PubMed]
47. Goldstein H, Spiegelhalter DJ. League tables and their limitations: statistical issues in comparisons of institutional performance (with discussion) J R Stat Soc A. 1996;159:385–443.
48. Roemer MR, Friedman JW. Doctors in hospitals: medical staff organization and hospital performance. Baltimore: Johns Hopkins University; 1971.
49. Selker HP. Systems for comparing actual and predicted mortality rates: characteristics to promote co-operation in improving hospital care. Ann Intern Med. 1993;118:820–822. [PubMed]
50. NHS Executive. ‘Faster access to modern treatment’: how NICE appraisal will work. London: Department of Health; 1999.