Weintraub, Daniel;
Chaudhuri, Kallol Ray;
Schrag, Anette;
Martinez-Martin, Pablo;
Rizos, Alexandra;
Mamikonyan, Eugenia;
Gallagher, Julia;
... Rodriguez-Blazquez, Carmen; + view all
(2025)
Validation of the International Parkinson and Movement Disorder Society Non-Motor Symptoms Questionnaire (MDS-NMS-Q).
Movement Disorders
10.1002/mds.30202.
(In press).
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Abstract
Background: The Movement Disorder Society Non-Motor Rating Scale (MDS-NMS) assesses severity and frequency of non-motor symptoms (NMS) in Parkinson's disease (PD) and is rater-administered. The MDS-NMS Questionnaire (MDS-NMS-Q), developed as a briefer (i.e., assessing symptom severity only), self-completed version of the MDS-NMS, is also a 13-domain, 52-symptom instrument with a separate non-motor fluctuations (NMFs) section. // Objective: The goal was to validate the MDS-NMS-Q versus the MDS-NMS. // Methods: A cross-sectional, multi-site, international study was conducted with idiopathic PD patients. After completing the self-administered MDS-NMS-Q unsupervised, patients were assessed with the rater-administered MDS-NMS. // Results: The cohort consisted of 199 PD patients (mean age [±standard deviation (SD)] = 67.19 [±9.95] years; mean age at PD diagnosis [±SD] = 59.27 [±9.54] years); median Hoehn and Yahr stage = 2. Data quality was satisfactory for all 13 MDS-NMS-Q domains. There were no floor or ceiling effects for the total score; individual domains had no appreciable ceiling effects, but variable floor effects (5.0%–71.4%). Internal consistency for most domains was satisfactory, except for the impulse control domain (Cronbach's α ≥0.75 for 10/13 domains). Correlation and concordance between MDS-NMS-Q and MDS-NMS total scores were high (Spearman rank correlation coefficient = 0.86; Kendall's coefficient of concordance = 0.93). // Conclusions: The MDS-NMS-Q has a strong association and concordance with the MDS-NMS at the total score and domain level. This indicates that the MDS-NMS-Q, allowing self-completion and focusing only on symptom severity, is an acceptable alternative to rater administration assessing both severity and frequency.
| Type: | Article |
|---|---|
| Title: | Validation of the International Parkinson and Movement Disorder Society Non-Motor Symptoms Questionnaire (MDS-NMS-Q) |
| Location: | United States |
| DOI: | 10.1002/mds.30202 |
| Publisher version: | https://doi.org/10.1002/mds.30202 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Clinical and Movement Neurosciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10209463 |
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