Statistics notes: Absence of evidence is not evidence of absence

BMJ

Volumn 311, Issue 7003, 1995, Pages 485-

  Altman, Douglas G ^a   Bland, J Martin ^b  

^a IMPERIAL CANCER RESEARCH FUND   (United Kingdom)

^b ST GEORGE'S UNIVERSITY OF LONDON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

OCTREOTIDE; STREPTOKINASE;

CALCULATION; CLINICAL TRIAL; HEART INFARCTION; HUMAN; MORTALITY; PRIORITY JOURNAL; SAMPLING; SCLEROTHERAPY; SHORT SURVEY; STATISTICAL ANALYSIS; TREATMENT OUTCOME; VARICOSIS;

CLINICAL RESEARCH; CLINICAL TRIALS; DATA ANALYSIS; MEASUREMENT; METHODOLOGICAL STUDIES; RESEARCH METHODOLOGY; STATISTICAL REGRESSION; VALIDITY;

CONTROLLED CLINICAL TRIALS; DATA INTERPRETATION, STATISTICAL; RANDOMIZED CONTROLLED TRIALS; SAMPLE SIZE; STATISTICS;

EID: 84971580244     PISSN: 09598138     EISSN: 14685833     Source Type: Journal    
DOI: 10.1136/bmj.311.7003.485     Document Type: Article

References (4)

1. Freiman JA Chalmers TC Smith H Kuebler RR. The importance of beta, the type II error, and sample size in the design and interpretation of the randomized controlled trial: survey of two sets of “negative” trials. In: BailarJCMostellerFeds. Medical uses of statistics. 2nd ed. Boston, MA: NEJM Books, 1992: 357–73.
2. Chalmers I. Proposal to outlaw the term “negative trial.” BMJ 1985; 290: 1002.
3. Sung JJY Chung SCS Lai C-W Chan FKL Leung JWC Yung M-L Kassianides C, et al. Octreotide infusion or emergency sclerotherapy for variceal haemorrhage. Lancet 1993; 342: 637–41.
4. Yusuf S Collins R Peto R Furberg C Stampfer MJ Goldhaber SZ, et al. Intravenous and intracoronary fibrinolytic therapy in acute myocardial infarction: overview of results on mortality, reinfarction and side-effects from 33 randomized controlled trials. Eur Heart J 1985; 6: 556–85.