The Parkinson's Disease Questionnaire (PDQ-39): development and validation of a Parkinson's disease summary index score

Jenkinson, Crispin; Fitzpatrick, Ray; Peto, Viv; Greenhall, Richard; Hyman, Nigel

doi:10.1093/ageing/26.5.353

Public

The Parkinson's Disease Questionnaire (PDQ-39): development and validation of a Parkinson's disease summary index score

Published in Age and Ageing • Jan 1, 1997

Authors:

Crispin Jenkinson

Ray Fitzpatrick

Viv Peto

Abstract

OBJECTIVES: to briefly outline the development and validation of the Parkinson's Disease Questionnaire (PDQ-39) and then to provide evidence for the use of the measure as either a profile of health status scores or a single index figure. DESIGN: the PDQ-39 was administered in two surveys: a postal s...

Subject

Medicine

Construct validity

Rating scale

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