Table 2 Description of EQ-5D-5L domains and VAS as well as OKS in the Estimation sample
From: Mapping of disease-specific Oxford Knee Score onto EQ-5D-5L utility index in knee osteoarthritis
Question/Score | Whole estimation sample | TKR | ||||||
|---|---|---|---|---|---|---|---|---|
No | Yes | |||||||
Not indicated | Indicated | |||||||
(n = 456) | (n = 285) | (n = 110) | (n = 61) | |||||
Mobility | ||||||||
L1 | 121 | 26.5% | 102 | 35.8% | 2 | 1.8% | 17 | 27.9% |
L2 | 111 | 24.3% | 93 | 32.6% | 3 | 2.7% | 15 | 24.6% |
L3 | 103 | 22.6% | 80 | 28.1% | 15 | 13.6% | 8 | 13.1% |
L4 | 94 | 20.6% | 10 | 3.5% | 66 | 60% | 18 | 29.5% |
L5 | 27 | 5.9% | – | 0% | 24 | 21.8% | 3 | 4.9% |
Self-care | ||||||||
L1 | 271 | 59.4% | 219 | 76.8% | 16 | 14.5% | 36 | 59% |
L2 | 61 | 13.4% | 44 | 15.4% | 10 | 9.1% | 7 | 11.5% |
L3 | 62 | 13.6% | 21 | 7.4% | 34 | 30.9% | 7 | 11.5% |
L4 | 38 | 8.3% | – | 0% | 31 | 28.2% | 7 | 11.5% |
L5 | 24 | 5.3% | 1 | 0.4% | 19 | 17.3% | 4 | 6.6% |
Usual activities | ||||||||
L1 | 112 | 24.6% | 97 | 34% | 1 | 0.9% | 14 | 23% |
L2 | 116 | 25.4% | 97 | 34% | 4 | 3.6% | 15 | 24.6% |
L3 | 113 | 24.8% | 80 | 28.1% | 20 | 18.2% | 13 | 21.3% |
L4 | 68 | 14.9% | 10 | 3.5% | 47 | 42.7% | 11 | 18% |
L5 | 47 | 10.3% | 1 | 0.4% | 38 | 34.5% | 8 | 13.1% |
Pain/discomfort | ||||||||
L1 | 38 | 8.3% | 30 | 10.5% | 1 | 0.9% | 7 | 11.5% |
L2 | 140 | 30.7% | 120 | 42.1% | 2 | 1.8% | 18 | 29.5% |
L3 | 140 | 30.7% | 111 | 38.9% | 15 | 13.6% | 14 | 23% |
L4 | 77 | 16.9% | 20 | 7.0% | 45 | 40.9% | 12 | 19.7% |
L5 | 61 | 13.4% | 4 | 1.4% | 47 | 42.7% | 10 | 16.4% |
Anxiety/depression | ||||||||
L1 | 118 | 25.9% | 86 | 30.2% | 10 | 9.1% | 22 | 36.1% |
L2 | 114 | 25% | 89 | 31.2% | 11 | 10% | 14 | 23% |
L3 | 138 | 30.3% | 87 | 30.5% | 40 | 36.4% | 11 | 18% |
L4 | 48 | 10.5% | 16 | 5.6% | 23 | 20.9% | 9 | 14.8% |
L5 | 38 | 8.3% | 7 | 2.5% | 26 | 23.6% | 5 | 8.2% |
EQ-5D VAS€ | 61.2 ± 24.7 | 69.8 ± 17.3 | 38.5 ± 25.8 | 59.6 ± 27.5 | ||||
Egypt utility | 0.38 ± 0.53 | 0.65 ± 0.26 | − 0.30 ± 0.40 | 0.35 ± 0.56 | ||||
Total OKS | 27.3 ± 13.2 | 34.3 ± 7.46 | 10.1 ± 5.75 | 25.3 ± 14.5 | ||||
Usual level of pain | 1.11 ± 1.11 | 1.44 ± 1.04 | 0.20 ± 0.57 | 1.18 ± 1.26 | ||||
Trouble with washing and drying | 3.06 ± 1.28 | 3.66 ± 0.72 | 1.56 ± 1.10 | 2.95 ± 1.40 | ||||
Trouble with transport | 2.39 ± 1.33 | 3.01 ± 0.96 | 0.91 ± 0.80 | 2.20 ± 1.47 | ||||
Walking time before severe pain | 2.70 ± 1.23 | 3.29 ± 0.79 | 1.36 ± 1.00 | 2.34 ± 1.29 | ||||
Pain on standing up from sitting | 2.16 ± 1.19 | 2.61 ± 0.98 | 1.00 ± 0.77 | 2.13 ± 1.26 | ||||
Limping | 2.38 ± 1.47 | 3.06 ± 0.98 | 0.76 ± 0.98 | 2.10 ± 1.71 | ||||
Difficulty kneeling | 2.11 ± 1.42 | 2.59 ± 1.23 | 0.94 ± 1.1 | 1.95 ± 1.53 | ||||
Pain at night | 2.16 ± 1.45 | 2.80 ± 1.15 | 0.60 ± 0.74 | 2.03 ± 1.51 | ||||
Pain interferes with work | 2.12 ± 1.36 | 2.75 ± 0.98 | 0.53 ± 0.63 | 2.03 ± 1.47 | ||||
Sense of knee instability | 2.44 ± 1.43 | 3.14 ± 0.89 | 0.77 ± 0.93 | 2.20 ± 1.63 | ||||
Can do household shopping alone | 2.66 ± 1.53 | 3.48 ± 0.88 | 0.76 ± 0.95 | 2.26 ± 1.60 | ||||
Trouble walking downstairs | 1.98 ± 1.25 | 2.49 ± 1.00 | 0.66 ± 0.63 | 1.95 ± 1.41 | ||||