Correlations among physical functioning scales and descriptive statistics at baseline
| PF-20 | SF-36 | HAQ | Mean | SD | Minimum | Maximum | |
|---|---|---|---|---|---|---|---|
| PF-20 | 1.00 | 0.84 | −0.89 | 40.18 | 9.03 | 12.60 | 62.30 |
| SF-36 | 0.84 | 1.00 | −0.79 | 37.29 | 12.21 | 14.94 | 57.03 |
| HAQ | −0.89 | −0.79 | 1.00 | 0.88 | 0.71 | 0.00 | 3.00 |
HAQ, Health Assessment Questionnaire.