Table 8 Knee – patients’ perception of improvement (%) (using the paired data-specific MCID [Eq. 4])
Instrument | Measure | Total | Much Better | A little better | About the same | A little worse | Worse | |
|---|---|---|---|---|---|---|---|---|
OKS | (N = 191,379) | (N = 138,407) | (N = 31,650) | (N = 8985) | (N = 7029) | (N = 4610) | ||
Observed | 73% | 68% | 21% | 6% | 3% | 1% | ||
AUC | 0.7 | 0.8 | 0.7 | 0.7 | 0.7 | 0.7 | ||
Predicted | Pre-op. | 58% | 74% | - | - | - | - | |
Pre-op., age, gender, comorbidity | 58% | 75% | - | - | - | - | ||
EQ-5D-3L | (N = 180,546) | (N = 130,838) | (N = 29,888) | (N = 8434) | (N = 6569) | (N = 4243) | ||
Observed | 42% | 45% | 39% | 32% | 26% | 14% | ||
AUC | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 | 0.7 | ||
Predicted | Pre-op. | 44% | 46% | 46% | 35% | 8% | 5% | |
Pre-op., age, gender, comorbidity | 44% | 44% | 45% | 36% | 14% | 5% | ||