Known-group validity of patient global assessment of disease activity.
| Known Groups (no. patients) | PGA, mean (± SD) | Effect Size Cohen’s d | |
|---|---|---|---|
| Severe disease | |||
| HAQ > 1.0 | Yes (35) | 6.23 (± 1.72)** | 0.82 |
| No (88) | 3.90 (± 2.22) | ||
| DAS28 > 5.1 | Yes (31) | 5.90 (± 2.09)** | 1.17 |
| No (94) | 4.12 (± 2.23) | ||
| Walking with aids | Yes (12) | 6.17 (± 1.34)* | 0.93 |
| No (113) | 4.39 (± 2.34) | ||
| Social welfare dependence | Yes (27) | 5.74 (± 1.87)** | 0.72 |
| No (96) | 4.21 (± 2.35) | ||
| Remission criteria | |||
| DAS28 < 2.6 | Yes (29) | 3.17 (± 2.25)** | −0.82 |
| No (96) | 4.98 (± 2.18) | ||
| MDA | Yes (16) | 2.06 (± 2.02)** | −1.39 |
| No (104) | 4.95 (± 2.14) |