Table 4 Instruments' properties and the scores of the study population: priority and HRQOL
Instrument properties | Observed scores | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Instruments | Procedure | Possible range | Floor effect (%) | Ceiling effect (%) | N | Mean (SD) | Minimum | Median | Maximum |
Prioritisation | |||||||||
Prioritisation instrument | Arthroplasty | 100-0 | 0.9 | 0.4 | 785 | 49.4 (22.0) | 0 | 49.0 | 100 |
Cataract | 0.0 | 4.6 | 1,547 | 35.3 (23.0) | 0 | 35.0 | 99 | ||
Doctor's opinion on surgical priority (VAS) | Arthroplasty | 10-0 | 0.2 | 0.7 | 881 | 5.9 (1.9) | 0 | 5.9 | 10 |
Cataract | 0.3 | 3.3 | 1,378 | 4.5 (2.3) | 0 | 4.5 | 10 | ||
HRQOL | |||||||||
HUI31 | Arthroplasty | 0–1 | 0.0 | 0.5 | 196 | 0.57 (0.20) | 0.12 | 0.58 | 1 |
Cataract | 0.0 | 2.8 | 569 | 0.69 (0.22) | 0.08 | 0.70 | 1 | ||
EQ-5D1 | Arthroplasty | -0,08–1 | 0.6 | 0.6 | 347 | 0.37 (0.19) | -0.08 | 0.27 | 1 |
Cataract | 0.0 | 23.0 | 934 | 0.69 (0.24) | 0.01 | 0.70 | 1 | ||
WOMAC | Arthroplasty | 96-0 | 0.2 | 0.3 | 938 | 53.9 (17.6) | 0 | 55.0 | 96 |
Pain2 | 20-0 | 0.5 | 1.4 | 939 | 10.3 (4.0) | 0 | 10.0 | 20 | |
Stiffness2 | 8-0 | 43.8 | 1.9 | 938 | 2.3 (2.4) | 0 | 2.0 | 8 | |
Function2 | 68-0 | 0.2 | 0.8 | 939 | 41.3 (13.0) | 0 | 42.0 | 68 | |
VF-14 | Cataract | 0–100 | 0.3 | 5.0 | 1,669 | 59.9 (25.5) | 0 | 60.4 | 100 |