The Parkinson's Disease Questionnaire (PDQ-39): evidence for a method of imputing missing data

Background: the Parkinson's Disease Questionnaire (PDQ-39) is the most widely used Parkinson's specific measure of health status. It is increasingly used in treatment trials, sometimes as a primary end-point, where any missing data can potentially cause difficulties in analyses. Objectives...

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Príomhchruthaitheoirí: Jenkinson, C, Heffernan, C, Doll, H, Fitzpatrick, R
Rannpháirtithe: British Geriatrics Society
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: Oxford University Press 2006
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