Table 2 Characteristics of the included randomised questions
Characteristics of included RQs (Nā=ā48) | Values |
|---|---|
Year of publication (based on 40 publications), median (range) | 2005 (1976 to 2010) |
Trial type and primary outcome type | Ā |
āSuperiority, timetoevent | 31 |
āEquivalence/noninferiority, timetoevent | 11 |
āSuperiority, dichotomous | 6 |
Power | Ā |
āMedian (range) | 80% (73% to 99%) |
āNumber of trials <80% | 6 |
Ī± | Ā |
āMedian (range) | 5% (5% to 20%) |
āNumber of trials >5% | 3 |
Ī (superiority), median (range) | 15% (6% to 25%) |
Noninferiority margin, median (range) | 10% (7% to 17%) |
Total design sample size, median (range) | 240 (92 to 1,800) |
Total recruited sample, median (range) | 221 (36 to 2,618) |