Distribution of utility scores assigned to different health scenarios by study groups
| Scenario | Study group | Percentage (No) assigning utility score | Median (interquartile range) utility score | Significance of difference (Kruskal-Wallis) χ2 (df) | |||||
|---|---|---|---|---|---|---|---|---|---|
| ⩽0.1 | 0.1–0.5 | 0.5–0.9 | ⩾0.9 | ||||||
| Current health | Patients | 18 (2) | 18 (2) | 18 (2) | 46 (5) | 0.70 (0.48–0.98) | 11.8 (2); p=0.003 | ||
| Controls | 5 (1) | 18 (4) | 36 (8) | 41 (9) | 0.85 (0.53–0.98) | ||||
| Staff | 0 | 0 | 5 (1) | 95 (19) | 0.98 (0.98–0.98) | ||||
| Mild stroke | Patients | 18 (2) | 9 (1) | 18 (2) | 55 (6) | 0.93 (0.50–0.98) | 1.1 (2); p=0.56 | ||
| Controls | 5 (1) | 23 (5) | 32 (7) | 41 (9) | 0.78 (0.48–0.98) | ||||
| Staff | 0 | 5 (1) | 50 (10) | 45 (9) | 0.88 (0.75–0.98) | ||||
| Moderate stroke | Patients | 27 (3) | 18 (2) | 9 (1) | 46 (5) | 0.73 (0.03–0.98) | 5.5 (2); p=0.25 | ||
| Controls | 41 (9) | 27 (6) | 14 (3) | 18 (4) | 0.30 (0.01–0.63) | ||||
| Staff | 10 (2) | 15 (3) | 60 (12) | 15 (3) | 0.68 (0.41–0.78) | ||||
| Severe stroke | Patients | 46 (5) | 18 (2) | 18 (2) | 18 (2) | 0.40 (0.48–0.98) | 2.8 (2); p=0.25 | ||
| Controls | 68 (15) | 14 (3) | 5 (1) | 14 (3) | <0 (<0–0.48) | ||||
| Staff | 45 (9) | 30 (6) | 25 (5) | 0 | 0.14 (<0–0.45) | ||||