Table 3.
Regression Analysis Statistics Explaining Variation in Pain-Free Range of Motion, Strength, and Total Objective Component of the CMS by Each Patient-Report Measure
| F-Ratio | R2 | Parameter Estimate* (CI) | |
|---|---|---|---|
| Predictor Variable (ASES) | |||
| ROM | 15.39 | 28% | 0.23 (0.11−0.36) |
| Strength | 12.46 | 23% | 0.15 (0.06−0.24) |
| Total objective CMS | 24.43 | 38% | 0.39 (0.23−0.55) |
| Predictor Variable (UEFI) | |||
| ROM | 16.96 | 30% | 0.24 (0.12−0.36) |
| Strength | 3.61 | 8% | 0.09 (−0.01−0.18) |
| Total objective CMS | 15.34 | 28% | 0.33 (0.16−0.50) |
| Predictor Variable (WORC) | |||
| ROM | 9.08 | 18% | 0.16 (0.05−0.27) |
| Strength | 8.61 | 17% | 0.11 (0.03−0.18) |
| Total objective CMS | 14.68 | 26% | 0.28 (0.13−0.42) |
| Predictor Variable (RCQOL) | |||
| ROM | 2.99 | 7% | 0.09 (−0.01−0.21) |
| Strength | 3.01 | 6% | 0.06 (−0.01−0.14) |
| Total objective CMS | 4.64 | 10% | 0.17 (0.01−0.32) |
CMS = Constant-Murley score; ASES = American Shoulder & Elbow Score; WORC = Western Ontario Rotator Cuff Index; UEFI = Upper Extremity Functional Index; RC-QOL = Rotator Cuff Quality of Life Score; ROM = range of motion
*Parameter estimates are the estimates of predictor variables.