References
- Croxton FE. Elementary statistics with applications in medicine and the biological sciences. Dover Publications, Inc. New York, 1959.
- Robin ED, Lewiston NJ. Type 3 and type 4 errors in the statistical evaluation of clinical trials. Chest 1990; 98: 463–5.
- Altman DG, Machin D, Bryant TN, Gardner MJ. Statistics with confidence, 2nd edition. BMJ Books, 2000.
- Croxton FE. Elementary statistics with applications in medicine and the biological sciences. Dover Publications, Inc. New York, 1959; pp.109-47.
- Pocock JS. Clinical trials. A practical approach. John Wiley & Sons, New York, 1983; pp. 123-5.
- de Craen MM, Vickers AJ, Tyssen JGP, Kleynen J. Number-needed-to-treat and placebo controlled trials. Lancet 1998; 351: 310.
- Drazner MH, Rame JE, Stevenson LW, Dries DL. Prognostic importance of elevated jugular venous pressure and a third heart sound in patients with heart failure. N Engl J Med 2001; 345: 574–81.
- Ector H. Letter to the editor. N Engl J Med 2001; 345: 1912–3.
- Armoundas AA, Rosenbaum DS, Ruskin JN, Garan H, Cohen RJ. Prognostic significance of electrical alternans versus signal averaged electrocardiography in predicting the outcome of electrophysiological testing and arrhythmia-free survival. Heart 1998; 80: 251–6.
- Ector H. Letter to the editor. Heart 1999; 82: 534.
- Feinstein AR. Scientific standards in epidemiologic studies of the menace of daily life. Science 1988; 242: 1257–63.
- Hellman S. Hellman DS. Problems of the randomized clinical trial. N Engl J Med 1991; 324: 1585–9.
- Passami E. Clinical trials: are they ethical? N Engl J Med 1991; 324: 1589.
- Kiibler W Treatment of cardiac diseases: evidence based or experience based medicine. Heart 2000; 84: 134–6.
- Feinstein AR. The limitations of randomized trials. Ann Intern Med 1983; 99: 544–50.
- Concato J, Horwitz RI. Beyound randomized versus observational studies. Lancet 2004; 363: 1660–1.
- Vandenbroucke JP. When are observational studies as credible as randomized trials? Lancet 2004; 363: 1728-31.
- Norusis MJ. SPSS Professional Statistics 7.5. SPSS Inc. Chicago, IL 60611, 1997; pp. 37-64.
- Altman DG, Machin D, Bryant TN, Gardner MJ. Statistics with confidence, 2nd edition. BMJ Books, 2000; pp. 93-104.
- Quotation from Michel de Montaigne, Essais, 1580.
- Glantz SA. Primer of Statistics. McGraw-Hill Book Company, New York, 1987.
- Feinstein Alvan R. Multivariable Analysis: An Intro-duction. Yale University Press, New Haven and London, 1996.