Demographic characteristics of patients with (cases) and without (controls) an active work-related compensation claim
| Variable | Group; no. (%) of participants* | p value† | |
|---|---|---|---|
| Case n = 50 | Control n = 50 | ||
| Age, mean ± SD, yr | 40 ± 11 | 58 ± 16 | < 0.001 |
| Sex | 0.2 | ||
| Female | 18 (36) | 24 (48) | |
| Male | 32 (64) | 26 (52) | |
| Symptom duration, mean ± SD, mo | 7 ± 7 | 31 ± 41 | < 0.001 |
| Mechanism of injury | < 0.001 | ||
| Insidious | 5 (10) | 45 (90) | |
| Traumatic | 45 (90) | 5 (10) | |
| Type of disorder | |||
| Degenerative disc disease | 2 (4) | 16 (32) | < 0.001 |
| Disc herniation | 12 (24) | 16 (32) | 0.06 |
| Mechanical low back pain | 4 (8) | 12 (24) | 0.05 |
| Other | 32 (64) | 6 (12) | — |
| Pain pattern | |||
| Back dominant | 47 (94) | 27 (54) | |
| Leg dominant | 3 (6) | 23 (46) | < 0.001 |
| Surgical candidate | 2 (4) | 20 (40) | < 0.001 |