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Sialorrhea Clinical Scale for Parkinson's Disease (SCS-PD)
Please visit this website for more information about the instrument: Sialorrhea Clinical Scale for Parkinson's Disease
 Supplemental: Parkinson's Disease (PD)
Short Description of Instrument
The Sialorrhea Clinical Scale for Parkinson's Disease (SCS-PD) is a patient-reported questionnaire, initially written and reported in Spanish, that assesses drooling severity and frequency as well as social and functional impairment from drooling. It was developed in 2007, specifically for patients with Parkinson's disease, to address the lack of validated tools for sialorrhea in PD and with the hope of having a scale that would detect dysphagia before aspiration pneumonia occurred.
Scoring and Psychometric Properties
Scoring: The SCS-PD consists of 7 items that are scored from 0-3 for a maximum score of 21.
Psychometric Properties: The SCS-PD has undergone formal validation, but in the validation study several clinimetric properties were not assessed. Rating scale correlation with saliva production was investigated, both in Parkinson's disease patients and in healthy control subjects.
Strengths: The SCS-PD is relatively short and easy to administer. It was specifically designed for patients with Parkinson's disease.
Weaknesses: The SCS-PD validation study was performed on a small sample size and some important clinimetric properties were not addressed. Test-retest reliability analysis was not carried out.
Key Reference:
Perez Lloret S, Piran Arce G, Rossi M, Caivano Nemet ML, Salsamendi P, Merello M. Validation of a new scale for the evaluation of sialorrhea in patients with Parkinson's disease. Movement Disorders. 2007 Jan; 22(1):107-11.
Additional References:
Evatt ML, Chaudhuri KR, Chou KL, Cubo E, Hinson V, Kompoliti K, Yang C, Poewe W, Rascol O, Sampaio C, Stebbins GT, Goetz CG. Dysautonomia rating scales in Parkinson's disease: sialorrhea, dysphagia, and constipation--critique and recommendations by movement disorders task force on rating scales for Parkinson's disease. Mov Disord. 2009 Apr 15; 24(5):635-46.
Nascimento D, Carmona J, Mestre T, Ferreira JJ, Guimaraes I.  Drooling rating scales in Parkinson's disease:  A systematic review. Parkinsonism Relat Disord. 2021 Oct;91:173-180.  
Document last updated August 2022