Fig. 1From: The INVEST project: investigating the use of evidence synthesis in the design and analysis of clinical trialsViews of respondents on whether evidence synthesis methods should be used to inform trial design. The type of evidence synthesis method is summarised across five aspects of trial design: whether a trial is needed (n = 104), choice of population (n = 103), choice of interventions (n = 103), choice of outcomes and follow-up time (n = 101), sample size (n = 103)Back to article page