Table 1.
Participant Baseline Characteristics
| Characteristic | No. (%) of participants* |
Mean (SD) |
|---|---|---|
| Age, y | — | 43.8 (9.3) |
| Sex | ||
| Male | 29 (39) | — |
| Female | 45 (61) | — |
| Work status | ||
| Employed | 19 (26) | — |
| Unemployed | 37 (50) | — |
| Missing data | 18 (24) | — |
| Marital status | ||
| Single | 6 (8) | — |
| Married/common law | 38 (52) | — |
| Divorce/separated/widowed | 12 (16) | — |
| Missing data | 18 (24) | — |
| Education, y | 54 (73) | 12.8 (3.5) |
| Missing data | 20 (27) | — |
| Pain duration, mo | 53 (72) | 41.2 (28.0) |
| Missing data | 21 (28) | — |
| Time since last employment, mo | 50 (68) | 24.5 (17.0) |
| Missing data | 24 (32) | — |
*
Unless otherwise specified.