Table 2.
Baseline characteristics.
| Characteristic | Nonparticipant group (n=675) | Intervention group (n=262) | All participants (N=937) | ||||
| Age (year), mean (SD) | 44.0 (12.1) | 44.4 (11.3) | 44.1 (11.9) | ||||
| Baseline pain, mean (SD) | 42.9 (22.5) | 43.2 (21.7) | 43.0 (22.3) | ||||
| Pain region, n (%) | |||||||
|
|
Back | 225 (33.3) | 74 (28.2) | 299 (31.9) | |||
|
|
Hip | 87 (12.9) | 42 (16) | 129 (13.8) | |||
|
|
Knee | 119 (17.6) | 53 (20.2) | 172 (18.4) | |||
|
|
Neck | 140 (20.7) | 49 (18.7) | 189 (20.2) | |||
|
|
Shoulder | 104 (15.4) | 44 (16.8) | 148 (15.8) | |||
| Registration month, n (%) | |||||||
|
|
July | 124 (18.4) | 54 (20.6) | 178 (19) | |||
|
|
August | 170 (25.2) | 60 (22.9) | 230 (24.5) | |||
|
|
September | 236 (35) | 77 (29.4) | 313 (33.4) | |||
|
|
October | 145 (21.5) | 71 (27.1) | 216 (23.1) | |||