HAQ-DI minimal important difference (MID) estimates for CSRG patients.
| Anchor: Change in Health Over Past Year | HAQ-DI Change, mean (SD) [95% CI] | HAQ-DI Change, 75th percentile** |
|---|---|---|
| Much better (n = 15) | –0.283 (0.527) [–0.575 to 0.009] | 0.000 |
| Somewhat better (n = 47) | –0.037 (0.402) [–0.155 to 0.081] | 0.250 |
| About the same (n = 173) | 0.0001 (0.343) [–0.050 to 0.053] | 0.125 |
| Somewhat worse (n = 93)* | 0.140 (0.387) [0.060 to 0.219] | 0.375 |
| Much worse (n = 8) | 0.156 (0.319) [–0.110 to 0.423] | 0.250 |
| Spearman correlation coefficient | 0.227, p < 0.01 |
↵** 75th percentile of HAQ-DI change score was taken for each subgroup. HAQ-DI: Health Assessment Questionnaire-Disability Index; CSRG: Canadian Scleroderma Research Group.