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Table 2 Bivariate associations between trial attributes and patients’ willingness to have clinic participate

From: Willingness to participate in pragmatic dialysis trials: the importance of physician decisional autonomy and consent approach

Attribute Willing to participatea, numberb (percentage) OR (95% CI) P value
Autonomy
 Low 635 (79) 1.00 0.13
 High 617 (77) 0.81 (0.61, 1.06)
Burden
 Low 641 (80) 1.00 0.06
 High 611 (76) 0.70 (0.48, 1.01)
Consent
 Opt-in 336 (84) 1.00 <0.001
 Opt-out 333 (82) 0.88 (0.49, 1.57)
 Notification-only 323 (81) 0.68 (0.38, 1.23)
 No-notification 260 (66) 0.19 (0.10, 0.34)
  1. aWillingness to participate was defined as the “definitely willing” or “probably willing” categories combined
  2. bDenominators differ for each attribute because of the 1600 total randomized controlled trial scenarios answered (200 patients × 8 scenarios), each level of burden and autonomy was included in 50% of the scenarios (N = 800), whereas the four levels of consent were each included in 25% of the scenarios (N = 400)