風險和勝算 風險(RISK) 勝算(ODDS) 風險和勝算的比值 風險比(相對風險) [risk ratio (relative risk)] 勝算比(odds ratio) *研究者也能用世代研究取代,並直接計算風險比 *病例對照研究總是以勝算比的方式報告研究結果 臨床試驗和需要治療的數目 (clinical trials and numbers needed to treat) *需要治療的數目...
Confoundedness of the odds ratio in randomized clinical trialsconfoundedness of the odds ratio in randomized clinical trialsdoi:10.1016/0197-2456(86)90082-6Jan G.P. TijssenElsevier Inc.Controlled Clinical Trials
Last time, we give a SAS example ofRisk Differenceto test if two groups are experiencing the same proportion of a certain event. In order to understand the topic better, we will go over Risk Ratio. Definition: Risk Ratioor Relative Risk (RR) is the probability that an event occurs in a...
Last time, we give a SAS example of Risk Difference to test if two groups are experiencing the same proportion of a certain event. In order to understand the topic better, we will go over Risk Ratio. Definition: Risk Ratio or Relative Risk (RR) is the probability that an event occurs ...
The odds ratio (OR) has been recommended to measure the relative treatment effect in therapeutic equivalence or meta-analysis. When controlling the confounding effect due to strata formed by centers (or trials) on patients'' response in a multicenter study (or a meta-analysis), we commonly empl...
What's the Relative Risk?: A Method of Correcting the Odds Ratio in Cohort Studies of Common Outcomes Logistic regression is used frequently in cohort studies and clinical trials. When the incidence of an outcome of interest is common in the study populatio... J Zhang,KF Yu - 《Jama》 被...
On sample size calculation based on odds ratio in clinical trials. Sample size calculation formulas for testing equality, noninferiority, superiority, and equivalence based on odds ratio were derived under both parallel an... H Wang,Chow, Shein-Chung,G Li - 《Journal of Biopharmaceutical ...
Odds ratio vs risk ratio in randomized controlled trials However, the use of OR can markedly exaggerate the effect size in RCTs if misinterpreted as RR and, hence, has the potential to mislead clinicians... H Balasubramanian,A Ananthan,S Rao,... - 《Postgraduate Medicine》 被引量: 7发表...
Adaptive data-dependent allocation designs are used in phase III clinical trials having two or more competing treatments with sequential entrance of patients, in order to allocate a larger number of patients to the better treatment. The odds ratio is a popular concept for biomedical practitioners; ...
Limitations of the Odds Ratio in Gauging the Performance of a Diagnostic, Prognostic, or Screening Marker A simple method for converting an odds ratio to effect size for use in meta-analysis. A note on graphical presentation of estimated odds ratios from several clinical trials. ...