Prognostic indicators of the severity of shoulder disability at long term follow up (n = 264): univariate and multivariate linear regression analyses
| Prognostic indicator* | Univariate analysis | Multivariate analysis | |||
|---|---|---|---|---|---|
| Mean difference | 95% CI | Mean difference | 95% CI | ||
| *Adjusted for country and randomised treatment. | |||||
| CI, confidence interval. | |||||
| Age group (years) | |||||
| 20 to 50 | |||||
| 51 to 58 | 6.78 | −2.94 to 16.5 | |||
| 59 to 67 | 3.36 | −6.38 to 13.1 | |||
| 68 to 85 | 11.06 | 1.07 to 21.0 | |||
| Male sex | 3.90 | −2.89 to 10.7 | |||
| Duration of shoulder pain at baseline (per month) | 0.52 | 0.05 to 1.00 | 0.52 | 0.08 to 0.95 | |
| Involvement of dominant side | 3.04 | −3.85 to 9.92 | |||
| Concomitant neck pain | 10.70 | 3.94 to 17.5 | 6.57 | 0.21 to 12.9 | |
| Gradual onset | 6.66 | −1.19 to 14.5 | 7.77 | 0.53 to 15.0 | |
| Use of painkillers in previous 48 hours | 3.55 | −3.74 to 10.9 | |||
| Baseline disability (per point) | 0.52 | 0.36 to 0.67 | 0.52 | 0.36 to 0.68 | |
| Baseline pain in day (per point) | 0.18 | 0.04 to 0.32 | |||