Comparison of intervention and control group at baseline for age, sex, number of days with LBP during the past year, and self rated health
| Intervention group | Control group | |
|---|---|---|
| *Difference between intervention and control (χ2 test) p = 0.764. Results expressed as % (95% CI). | ||
| †Difference between intervention and control (χ2 test) p = 0.119. Results expressed as % (95% CI). | ||
| n | 171 | 145 |
| Age (mean, range) | 44.6, 21–64 | 44.4, 21–64 |
| Sex | All female | All female |
| Days with LBP during past year* | ||
| 0 days | 43 (38 to 53) | 39 (31 to 48) |
| 1–7 days | 30 (23 to 37) | 29 (22 to 37) |
| 8–30 days | 10 (6 to 15) | 11 (7 to 18) |
| >30 days | 10 (6 to 15) | 11 (7 to 18) |
| Daily | 7 (2 to 8) | 10 (4 to 14) |
| Self rated health† | ||
| Excellent | 38 (31 to 46) | 25 (18 to 33) |
| Good | 50 (43 to 58) | 54 (46 to 63) |
| Fair | 12 (7 to 17) | 20 (13 to 27) |
| Bad | 0 | 1 (0 to 4) |
| Very bad | 0 | 0 |