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Table 3 The use of systematic reviews in trial design

From: The use of systematic reviews in the planning, design and conduct of randomised trials: a retrospective cohort of NIHR HTA funded trials

Area of use

Number of applications (%)

 

(n=37)

Justification of treatment comparisons

6 (16.2)

Choice of frequency/dose

2 (5.4)

Selection or definition of outcome

7 (18.9)

Recruitment and consent

2 (5.4)

Estimating the difference to detect or margin of equivalence

6 (16.2)

Estimating the control group event rate

3 (8.1)

Inform standard deviation

1 (2.7)

Duration of follow up

8 (21.6)

Withdrawal rate

1 (2.7)

Adverse events

9 (24.3)