Prognostic indicators of the severity of shoulder pain during the day 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 | −0.19 | −7.67 to 7.30 | |||
| 59 to 67 | 2.29 | −5.29 to 9.87 | |||
| 68 to 85 | 6.88 | −0.81 to 14.6 | |||
| Male sex | 6.06 | 0.83 to 11.3 | 5.77 | 0.74 to 10.8 | |
| Duration of shoulder pain at baseline (per month) | 0.25 | −0.13 to 0.62 | 0.30 | −0.06 to 0.65 | |
| Involvement of dominant side | 4.24 | −1.08 to 9.56 | |||
| Concomitant neck pain | 2.76 | −2.56 to 8.08 | |||
| Gradual onset | 3.32 | −2.74 to 9.39 | |||
| Use of painkillers in previous 48 hours | 3.43 | −2.25 to 9.10 | |||
| Baseline disability (per point) | 0.23 | 0.10 to 0.36 | 0.13 | 0.01 to 0.28 | |
| Baseline pain in day (per point) | 0.19 | 0.08 to 0.29 | 0.15 | 0.03 to 0.26 | |