Table 3.
Comparison with other study samples from general population and secondary care
| Variable | General population [8] | Chiropractic primary care population [This study] | Secondary care [7] (Two study samples) |
|---|---|---|---|
| Proportion of at least 4 consecutive weeks free from bothersome pain during the study period, % (95 % CIa) | 83 (78–88) | 59 (51–67) | 20 (11–29), 18 (13–23) |
| Proportion women, % | 54 | 49 | 68, 54 |
| Age mean | 50 | 44 | 46, 38 |
| Pain intensity 0–10, mean | - | 4.3 | 5.3, 4.9 |
| Study period | 12 months | 6 months | 12 months |
| Text message interval | Fortnightly | Weekly | Weekly |
a CI confidence interval