Group A Patients having completed the study | p (groups A1 vs A2 vs A3) | Group B Drop-out patients | p (group A vs group B) | ||||
---|---|---|---|---|---|---|---|
A | A1 | A2 | A3 | ||||
All patients | No pain at t0 | Acute & subacute pain at t0 | Chronic pain at t0 | ||||
n | 542 | 138 | 112 | 292 | 3340 | ||
Mean age (SD) | 50.6 (15.0) | 48.0 (17.6) | 47.8 (15.5) | 52.8 (13.2) | A1 vs A2: N.S. A1 vs A3: 0.002 A2 vs A3: 0.003 | 52.3 (18.6) | 0.04 |
n Females (%) | 337 (62%) | 73 (53%) | 80 (72%) | 184 (63%) | All group: 0.007 A2 vs A3: N.S. | 1961 (59%) | N.S. |
Mean body mass index (SD) | 26.3 (5.6) | 25.1 (5.3) | 26.2 (6.2) | 26.9 (5.4) | A1 vs A2: N.S. A1 vs A3: 0.002 A2 vs A3: N.S. | 26.4 (5.4) | N.S. |
n paid job (%) | 321 (60%) | 81 (59%) | 76 (69%) | 164 (57%) | All groups: 0.0008 A2 vs A3: 0.0109 | 1462 (44%) | <0.0001 |
n retired (%) | 137 (25%) | 40 (29%) | 16 (14%) | 81 (28%) | 1136 (34%) | ||
n no pain (%) | 138 (25%) | 931 (28%) | N.S. | ||||
n (sub) acute pain (%) | 112 (21%) | 735 (22%) | |||||
n chronic pain (%) | 292 (54%) | 1637 (49%) | |||||
Median number of pain sites | 1 | 0 | 1 | 2 | All groups: <0.0001 A2 vs A3: <0.0001 | 1 | N.S. |
n spinal pain (%) | 281 (52%) | 0 | 67 (60%) | 214 (74%) | All groups: <0.0001 A2 vs A3: 0.0096 | 1575 (47%) | 0.04 |
n limb pain (%) | 261 (48%) | 0 | 57 (51%) | 204 (70%) | All groups: <0.0001 A2 vs A3: 0.0004 | 1479 (44%) | N.S. |
n other pain sites (%) | 98 (18%) | 0 | 30 (27%) | 68 (23%) | All groups: <0.0001 A2 vs A3: N.S. | 641 (19%) | N.S. |
n spinal and limb pain (%) | 371 (69%) | 0 | 96 (86%) | 275 (95%) | All groups: <0.0001 A2 vs A3: 0.0070 | 2152 (64%) | N.S. |
n “non MSK” pain only (%) | 24 (4%) | 0 | 11 (10%) | 13 (4%) | All groups: <0.0001 A2 vs A3: 0.0503 | 208 (6%) | N.S. |