Fig. 2From: Early warnings and repayment plans: novel trial management methods for monitoring and managing data return rates in a multi-centre phase III randomised controlled trial with paper Case Report FormsChanges in data return rates over the course of TRISST. a Overall data return rate (DRR) as reported at each Trial Management Group meeting. b Proportion of all centres with <80% overall DRR (number of centres given above each column); note that the reduction in proportion in the first years of the trial was mainly due to increasing numbers of centres participating in the trial. c Overall trial recruitment and per-month number of Case Report Forms expected, for context. Shaded area shows the time when the new methods, described in this article, were used. TRISST Trial of Imaging and Schedule in Seminoma TestisBack to article page