Determining minimally important differences for the PDQ-39 Parkinson's disease questionnaire.
OBJECTIVE: To determine minimally important differences for dimensions of the PDQ-39, a 39-item Parkinson's disease questionnaire. A minimally important difference is defined as the smallest change between two scores that is subjectively meaningful to patients. Data on minimally important diffe...
| Main Authors: | , , |
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| Format: | Journal article |
| Sprog: | English |
| Udgivet: |
2001
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