Table 3.
Prevalence of preferences and characteristics of patients in trials. Values are numbers (percentages) unless stated otherwise
| Authors | Sample size | Female | Mean (SD) age (years) | Indifferent | With preference | With preference for “experimental” treatment | With preference for control: usual care or alternative treatment | Missing preference data |
|---|---|---|---|---|---|---|---|---|
| Adamson et al, 2005w3 | 122* | 52 (42) | 35.7 (35.7) | 16 (13) | 102 (84) | 90 (88) | 12 (12) | 4 (3.3) |
| Carr et al, 2005w4† | 237 | 133 (56) | 42.2 (10.9) | 152 (64) | 70 (30) | 10 (14) | 60 (86)‡ | 15 (6) |
| Hay et al, 2003w5; Thomas et al, 2004w6† | 207 | 110 (53) | 57.4 (13.4) | 81 (39.1) | 125 (60.4) | 83 (66) | 42 (34)‡ | 1 (0.5) |
| Johnson et al, 2007w7† | 234 | 140 (60) | 47.9 (11.2) | 100 (42.7) | 134 (57.3) | 114 (85) | 20 (15) | 0 (0) |
| Kitchener et al, 2006w8 | 291 | 291 (100) | 50.3 (10.5) | 141 (48.5) | 144 (49.5) | 134 (93) | 10 (7) | 6 (2.1) |
| Klaber Moffett et al, 1999w1† | 187 | 106 (57) | 41.9 (8.9) | 69 (36.9) | 118 (63.1) | 118 (100) | (0) | 0 (0) |
| Klaber Moffett et al, 2005w2† | 268 | 168 (63) | 48.3 (14.6) | 142 (53) | 126 (47) | 43 (34) | 83 (66)‡ | 0 (0) |
| Klaber Moffett et al, 2006w9† | 315 | 188 (60) | 45.0 (15.1) | 261 (82.9) | 51 (16.2) | 37 (73) | 14 (27) | 3 (1.0) |
| McLean et al, publication pendingw10† | 151 | 90 (60) | 54.0 (14.3) | 66 (43.7) | 82 (54.3)§ | 34 (45) | 41 (55)‡ | 3 (2.0) |
| Salisbury et al, 2005w11 | 556 | 327 (59) | 48.0 (19.1) | 63 (11.3) | 474 (85.3) | 328 (69) | 146 (31) | 19 (3.4) |
| Salter et al, 2006w12† | 24 | 18 (75) | 47.7 (16.5) | 9 (37.5) | 15 (62.5) | 15 (100) | (0) | 0 (0) |
*Two missing people in dataset.
†Trials included in patient level data meta-analysis.
‡Physiotherapy was control treatment in these trials.
§Seven participants removed from dataset for meta-analysis as they had preference for treatment not available in trial.