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Table 4 Associations between features and recruitment success

From: What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies

Feature Valid N Trials with feature that recruited successfully* n (%) Trials that didn't have feature that recruited successfully* n (%) Odds Ratio 95%CI p-value
Local recruitment coordinators 100 15/69 (22) 14/31 (45) 0.34 0.14, 0.84 0.017
Simple design 122 35/116 (30) 3/6 (50) 0.43 0.06, 3.41 0.374
Support from a trials unit 122 27/94 (29) 11/28 (39) 0.62 0.26, 1.50 0.289
Multidisciplinary input 113 34/104 (33) 3/9 (33) 0.97 0.19, 6.36 0.615
Pilot phase 109 18/66 (27) 11/43 (26) 1.09 0.46, 2.61 0.845
Good level of funding 89 7/24 (29) 17/65 (26) 1.16 0.41, 3.29 0.776
Drug trial 122 19/53 (36) 19/69 (28) 1.47 0.68, 3.18 0.326
Interventions only available inside the trial 112 7/18 (39) 26/94 (28) 1.66 0.58, 4.76 0.338
Consumer input 107 4/9 (44) 26/91 (29) 2.00 0.36, 10.05 0.446
Funded by the MRC 122 28/74 (38) 10/48 (21) 2.31 1.00, 5.36 0.048
Cancer trial 122 12/24 (50) 26/98 (27) 2.77 1.11, 6.93 0.026
Dedicated trial manager 107 32/91 (35) 2/16 (13) 3.80 0.79, 36.14 0.087
  1. * ≥ 100% of original target