Table 5.
Correlations between improvement of VAS and patient characteristics.
| Responder (Mean ± SD) | Non-Responder (Mean ± SD) | p-value | Correlation with VAS Improvement (r) | Number of subjects | |
|---|---|---|---|---|---|
| Age (years) | 65.8 ± 11.4 | 68.1 ± 12.2 | 0.004 | −0.76 (p = 0.02) | 887 |
| Height (cm) | 160.6 ± 8.1 | 160.2 ± 9.4 | 0.54 | 0.05 (p = 0.41) | 852 |
| Body weight (kg) | 63.1 ± 12.7 | 63.1 ± 12.7 | 0.25 | −0.07 (p = 0.06) | 852 |
| BMI (kg/m2) | 24.0 ± 3.7 | 24.5 ± 3.8 | 0.059 | −0.11 (p < 0.05) | 852 |
| FTA(°) | 179.3 ± 5.41 | 180.0 ± 6.0 | 0.20 | −0.06 (p = 0.19) | 479 |
| %MA | 33.0 ± 27.3 | 27.9 ± 29.9 | 0.08 | 0.13 (p < 0.05) | 389 |
| VAS (0) (mm) | 65.4 ± 17.9 | 58.8 ± 17.7 | < 0.001 | 0.32 (p < 0.01) | 889 |
| PRP platelet ( × 109/mL) | 239.1 ± 53.4 | 240.8 ± 53.9 | 0.37 | 0.04 (p = 0.39) | 467 |
BMI, body mass index; FTA, femorotibial angle; MA, mechanical axis; VAS (0), baseline VAS; PRP, platelet-rich plasma.