Table 3.
Proportion of Completers and Discontinuers who Responded to PRO Measures in the Lower Limb Population *
| Tx1 | Tx2 | Tx3 | Tx4 | Tx5 | Tx6 | Tx7 | Tx8 | Total | |
|---|---|---|---|---|---|---|---|---|---|
| DAS, N † | 529 | 465 | 394 | 336 | 257 | 184 | 128 | 39 | 2332 |
| Completers, N (%) | 320 (60.5) | 316 (68.0) | 298 (75.6) | 272 (81.0) | 224 (87.2) | 171 (92.9) | 122 (95.3) | 37 (94.9) | 1760 (75.5) |
| Discontinuers, N (%) | 209 (39.5) | 149 (32.0) | 96 (24.4) | 64 (19.0) | 33 (12.8) | 13 ( 7.1) | 6 ( 4.7) | 2 ( 5.1) | 572 (24.5) |
| NPRS, N | 140 | 155 | 169 | 161 | 146 | 101 | 76 | 25 | 1488 |
| Completers, N (%) | 87 (62.1) | 109 (70.3) | 127 (75.1) | 129 (80.1) | 130 (89.0) | 94 (93.1) | 73 (96.1) | 25 (100.0) | 1086 (73.0) |
| Discontinuers, N (%) | 53 (37.9) | 46 (29.7) | 42 (24.9) | 32 (19.9) | 16 (11.0) | 7 ( 6.9) | 3 ( 3.9) | 0 ( 0.0) | 402 (27.0) |
| Patient Satisfaction, N ‡ | 146 | 159 | 170 | 161 | 147 | 100 | 76 | 25 | 984 |
| Completers, N (%) | 89 (61.0) | 111 (69.8) | 127 (74.7) | 129 (80.1) | 131 (89.1) | 93 (93.0) | 73 (96.1) | 25 (100.0) | 778 (79.1) |
| Discontinuers, N (%) | 57 (39.0) | 48 (30.2) | 43 (25.3) | 32 (19.9) | 16 (10.9) | 7 ( 7.0) | 3 ( 3.9) | 0 ( 0.0) | 206 (20.9) |
DAS = Disability Assessment Scale; N = number of patients; NPRS = Numeric Pain Rating Scale; Tx = treatment session.
To be labeled a study “completer,” patients had to meet all of the following criteria: (1) did not discontinue within the 96‐week study period, (2) were not lost to follow‐up, and (3) completed the Final Assessment form. Any patient that did not meet all the criteria for a study completer, was labeled a study “discontinuer.”
The proportion of completers and discontinuers shown for DAS are representative of each subscale (dressing, hygiene, pain, posture, and mobility), as the sample size was the same for all subscales at each treatment session.
The proportion of completers and discontinuers shown for the patient satisfaction questionnaire includes those that responded with “not applicable”. At each treatment session, the sample size was not the same for all nine items in the satisfaction questionnaire. To be conservative, the data shown in the table represent the lowest response rate observed at each treatment session.