Fig. 1

Willingness to participate in a randomized controlled trial comparing fistulas to catheters, by geographic location and patient population. This figure shows the proportion of survey respondents who were willing to participate in a randomized controlled trial comparing catheters to fistulas in incident hemodialysis patients, by geographic location, and according to the patient population included. In Canada, 86 % of respondents were willing to participate in a trial (32 % in all patients; 54 % only in patients at high risk of primary failure). In Europe and Australia/New Zealand, the willingness to participate in a trial that included all incident hemodialysis patients was lower (28 % Europe; 25 % Australia/New Zealand) as was the willingness to participate in a trial that included patients at high risk of primary failure of their fistulas (38 % in Europe; 39 % in Australia/New Zealand). NZ New Zealand