Table 7.
Logistic regression analyses to identify PTOA as a predictor of clinical outcomes
| Kellgren–Lawrence | Coefficient | Standard error | Wald | P | OR | 95% CI |
|---|---|---|---|---|---|---|
| Full model | ||||||
| ROM | −0.16 | 0.10 | 2.86 | 0.0910 | 0.85 | 0.70 to 1.03 |
| VAS | −0.33 | 0.33 | 1.03 | 0.3108 | 0.72 | 0.38 to 1.37 |
| AKSS | −0.09 | 0.05 | 3.40 | 0.0651 | 0.91 | 0.82 to 1.01 |
| KOOS ADL | 0.15 | 0.07 | 4.74 | 0.0295 | 1.16 | 1.02 to 1.33 |
| KOOS Pain | −0.05 | 0.06 | 0.73 | 0.3920 | 0.95 | 0.85 to 1.07 |
| KOOS QoL | 0.00 | 0.03 | 0.00 | 0.9851 | 1.01 | 0.95 to 1.06 |
| KOOS Sport Rec | −0.01 | 0.02 | 0.57 | 0.4505 | 0.99 | 0.95 to 1.02 |
| SF 36 MCS | −0.01 | 0.04 | 0.02 | 0.8916 | 0.99 | 0.91 to 1.08 |
| SF 36 PCS | −0.07 | 0.06 | 1.32 | 0.2503 | 0.94 | 0.83 to 1.05 |
| Constant | 22.89 | 10.52 | 4.74 | 0.0295 | ||
| Reduce model | ||||||
| AKSS | −0.06 | 0.02 | 7.88 | 0.0050 | 0.94 | 0.90 to 0.98 |
| Constant | 5.13 | 1.86 | 7.63 | 0.0058 | ||
AKSS, American Knee Society score; KOOS, knee injury and osteoarthritis outcome score; ROM, range of motion in degrees; SD, standard deviation; SF‐36, 36‐Item Short Form Survey; VAS, visual analog score.