Parkinson's Disease Questionnaire-8 (PDQ-8) Flow

Parkinson's Disease Questionnair-8 flow


The PDQ-8 is a short-form version, derived from the Parkinson Disease Questionaire-39 [1,2]. It is a self-administered questionnaire, used to measure quality of life in persons with Parkinson’s disease.

The Parkinson's Disease Questionnair-8 flow contains the Parkinson's Disease Questionnaire-8 (PDQ-8) questionnaire and associated calculation. After form submission, the Parkinson's Disease Questionnair-8 calculation is executed automatically. It's easy to extend this flow with conditional logic based on the interpretation of the Parkinson's Disease Questionnair-8 calculation.

Parkinson's Disease Questionnaire-8 (PDQ-8) questionnaire


A short form of the PDQ-39, the PDQ-8 has been developed using questions taken from the larger instrument to provide a single index score that is almost identical to those gained from the PDQ-39.

The PDQ-8 contains eight of the original 39 items of the PDQ-39; one item selected from each of the 8 scales. The scales are:

Had difficulty getting around in public?

Activities of daily living
Had difficulty dressing yourself?

Emotional well-being
Felt depressed?


Felt embarrassed in public due to having Parkinson's disease?

Social support
Had problems with your close personal relationships?

Had problems with your concentration, for example when reading or watching TV?

Felt unable to communicate with people properly?

Each question is scored from 0-4 points and the scores are summed. The summed score is then divided by total possible score and given as a percentage score out of 100.


[1] Jenkinson C, Fitzpatrick R, Peto V, Greenhall R, Hyman N. The Parkinson's Disease Questionnaire (PDQ-39): development and validation of a Parkinson's disease summary index score. Age Ageing. 1997 Sep;26(5):353-7. doi: 10.1093/ageing/26.5.353. PMID: 9351479.\
[2] Katsarou Z, Bostantjopoulou S, Peto V, Kafantari A, Apostolidou E, Peitsidou E. Assessing quality of life in Parkinson's disease: can a short-form questionnaire be useful? Mov Disord. 2004 Mar;19(3):308-12. doi: 10.1002/mds.10678. PMID: 15022185.

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