Table 4.
Ceiling effect, inconsistencies and informativity of the EQ-5D-3L and EQ-5D-5L in AD
| Dimensions | Ceiling effects | Inconsistencies | Informativity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EQ-5D-3L | EQ-5D-5L | Ceiling effect reduction | McNemar’s test p-value | EQ-5D-3L | EQ-5D-5L | ||||||||
| n | Ceiling (n, %) |
n | Ceiling (n, %) |
Absolute (%) | Relative (%) | Inconsistent response pairs (n, %)a | Average size of inconsistencies | H′ | J′ | H′ | J′ | ||
| Mobility | 218 | 192 (88.1%) | 218 | 182 (83.5%) | 4.59 | 5.21 | 0.016 | 3 (1.4%) | 1.00 | 0.53 | 0.33 | 0.81 | 0.35 |
| Self-care | 218 | 190 (87.2%) | 218 | 165 (75.7%) | 11.47 | 13.16 | < 0.001 | 9 (4.1%) | 1.11 | 0.55 | 0.35 | 1.07 | 0.46 |
| Usual activities | 218 | 116 (53.2%) | 218 | 96 (44.0%) | 9.17 | 17.24 | 0.002 | 15 (6.9%) | 1.07 | 1.15 | 0.73 | 1.83 | 0.79 |
| Pain/discomfort | 218 | 86 (39.4%) | 218 | 75 (34.4%) | 5.05 | 12.79 | 0.054 | 17 (7.8%) | 1.12 | 1.17 | 0.74 | 1.98 | 0.85 |
| Anxiety/depression | 218 | 99 (45.4%) | 218 | 104 (47.7%) | − 2.29 | − 5.05 | 0.404 | 20 (9.2%) | 1.15 | 1.27 | 0.80 | 1.70 | 0.73 |
| Overall (11111) or average | – | 60 (27.5%) | – | 49 (22.5%) | 5.05 | 18.33 | 0.029 | 64 (5.9%) | 1.09 | 0.93 | 0.59 | 1.48 | 0.64 |
H′ Shannon’s index, J′ Shannon’s evenness index
aThe total number of pairs is 218 for all dimensions