Baseline and four week characteristics of the study sample (n=907) for factors recommended by the working groups
| Baseline | Four week | Change between baseline and four week | Significance level of change* (p value) | |
|---|---|---|---|---|
| *Significance level of change over time from a paired t test. | ||||
| †For continuous measures, mean (SD) is shown. | ||||
| ‡Body region specific functional status measures and the pain grade were rescaled to a range of 0–100, with 0 representing worst possible outcome on scale and 100 representing best possible outcome on scale. | ||||
| §ASES, American Shoulder and Elbow Surgeons. | ||||
| ¶WOMAC is derived from WO for University of Western Ontario and MAC for McMaster University. | ||||
| Health related quality of life | ||||
| SF-36 Acute | ||||
| General health | 74.6 (17.8)† | 72.3 (18.6) | −2.5 (17.5) | ⩽0.0001 |
| Mental health | 60.3 (21.1) | 63.3 (22.2) | 3.0 (19.5) | ⩽0.0001 |
| Vitality | 38.2 (21.2) | 46.3 (21.5) | 8.0 (20.8) | ⩽0.0001 |
| Role emotional | 75.7 (35.9) | 74.3 (37.0) | −1.2 (41.4) | ⩾0.4 |
| Social functioning | 39.0 (26.3) | 47.5 (27.7) | 8.5 (26.4) | ⩽0.0001 |
| Body region specific functional status‡ | ||||
| Roland Morris (back) | 18.9 (15.8) | 27.1 (23.7) | 8.3 (18.7) | ⩽0.0001 |
| Modified ASES§ (upper limb) | 41.4 (24.5) | 48.7 (25.0) | 7.5 (19.0) | ⩽0.0001 |
| WOMAC¶ (lower limb) | 37.2 (19.7) | 52.1 (23.9) | 15.0 (19.8) | ⩽0.0001 |
| Pain grade‡ | 25.7 (12.8) | 38.1 (23.9) | 12.3 (21.2) | ⩽0.0001 |
| Recovery expectations | ||||
| Soon | 146 (16%) | 208 (23%) | ||
| Slowly | 504 (56%) | 521 (57%) | ||
| Never | 34 (4%) | 28 (3%) | ||
| Get worse | 7 (1%) | 8 (1%) | ||
| Will recur | 37 (4%) | 2 (0.2%) | ||
| Other | 179 (20%) | 140 (15%) | ||
| Extent of recovery compared to expectations | ||||
| Much better | 51 (6%) | 121 (13%) | ||
| Somewhat better | 254 (28%) | 300 (33%) | ||
| As expected | 87 (10%) | 85 (9%) | ||
| Somewhat worse | 332 (37%) | 267 (29%) | ||
| Much worse | 165 (18%) | 119 (13%) | ||
| Other | 18 (2%) | 15 (2%) | ||