Table 1 Baseline characteristics of all included patients.
Variable | All included patients (N = 658) | Patients with referred pain (N = 487) |
|---|---|---|
Age; Mean (SD) | 54.1 (14.6) | 53.8 (14.2) |
Gender; n (%) | ||
Male | 148 (22.5) | 94 (19.3) |
Female | 510 (77.5) | 393 (80.7) |
Work status; n (%) | ||
Active | 606 (92.1) | 453 (93.0) |
Retired | 52 (7.9) | 34 (7.0) |
Duration of present episode (days); | ||
Mean (SD) | 541.7 (1274.9) | 580.3 (1364.8) |
Chronicity: | ||
Subacute (14–90 days) | 290 (44.6) | 202 (41.8) |
Chronic (> 90 days) | 361 (55.4) | 281 (58.2) |
Baseline neck pain (PI-NRS points); | ||
N | 658 | 485 |
Mean (SD) | 7.2 (2.0) | 7.3 (2.0) |
Baseline pain referred to the arm (PI-NRS points); | ||
N | -- | 487 |
Mean (SD) | 6.6 (2.4) |