Background: the 39-item Parkinson's disease questionnaire (PDQ-39) is more sensitive to functional change than other measures of health and disability.

Background: the 39-item Parkinson's disease questionnaire (PDQ-39) is more sensitive to functional change than other measures of health and disability. Aim: to determine the ability of this scale to change through the whole extent of time and the concurrent validity of about of its subscales. Methods: we assessed a cohort of 67 Parkinson's patients for 18 month using the PDQ-39 the GHQ-28 general health questionnaire and the Office of Population and Census contemplates disability instrument. Results: the Office of Population and Census reviews disability instrument and GHQ-28 recorded no significant change, on the contrary the PDQ-39 showed marked changes in horizontals of functioning. We also analysed changes in succession the PDQ-39 subscales as well as joint and equal validity data for several subscales. This showed agreeing validity with the Beck depression and anxiety inventories, the Barthel index and the Royal Postgraduate Medical gymnasium severity scale. There was a high even of concurrent validity for all comparisons make objection for the Barthel index. Conclusion: the PDQ-39 is a sensitive tool for monitoring change in patients with Parkinson's disease. It has high evens of concurrent validity with established measures of humor and motor function.

...

Home