Comment on: "a simple and valid tool distinguished efficacy from effectiveness studies"

Journal of Clinical Epidemiology

Volumn 60, Issue 7, 2007, Pages 753-755

  Spigt, Mark G ^a   Kotz, Daniel ^a  

^a MAASTRICHT UNIVERSITY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

CLINICAL PROTOCOL; CLINICAL TRIAL; LETTER; MEDICAL RESEARCH; METHODOLOGY; PRIORITY JOURNAL; TREATMENT OUTCOME; VALIDITY;

HUMANS; RANDOMIZED CONTROLLED TRIALS; RESEARCH DESIGN; SAMPLE SIZE; TIME FACTORS; TREATMENT OUTCOME;

EID: 34250204196     PISSN: 08954356     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jclinepi.2006.12.008     Document Type: Letter

References (5)

1. Sackett D.L., and Gent M. Controversy in counting and attributing events in clinical trials. N Engl J Med 301 (1979) 1410-1412
2. Schwartz D., and Lellouch J. Explanatory and pragmatic attitudes in therapeutical trials. J Chronic Dis 20 (1967) 637-648
3. Gartlehner G., Hansen R.A., Nissman D., Lohr K.N., and Carey T.S. A simple and valid tool distinguished efficacy from effectiveness studies. J Clin Epidemiol 59 (2006) 1040-1048
4. Verhagen A.P., de Vet H.C.W., de Bie R.A., Kessels A.G., Boers M., Bouter L.M., et al. The Delphi list: a criteria list for quality assessment of randomized clinical trials for conducting systematic reviews developed by Delphi consensus. J Clin Epidemiol 51 (1998) 1235-1241
5. Sackett DL. The principles behind the tactics of performing therapeutic trials. In: Haynes RB, Sackett DL, Guyatt GH, Tugwell P, eds. Clinical epidemiology. How to do clinical practice research. 3rd edition. Philadelphia: Lippincott Williams & Wilkins; 2006. 186-187.