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.gov website belongs to an official
government organization in the United States.
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Suggested guideline for interpretation of change of the PDSS scores
| Interpretation | Percent change |
|---|---|
| Very much improved | −75 to −100% |
| Much improved | −40 to −74% |
| Minimally improved | −10 to −39% |
| No change | +10 to −9% |
| Worse* | +11% or more |
There were too few cases in this category to enable any finer interpretation.
