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Mean Change in PROMIS Physical Function According to Clinical Anchor Response.
| Clinical anchor response | Δ physical function | 95% confidence interval |
|---|---|---|
| No change (n = 48) | −1.3 | −2.3 to −0.3 |
| Mild improvement (n = 70) | 3.9a | 3.3 to 4.7 |
| Much improvement (n = 34) | 7.1 | 5.4 to 8.7 |
Note. PROMIS = Patient-Reported Outcomes Measurement Information System.
Minimal clinically important difference estimate.
