Expanded and Independent Spanish Validation of the MDS‐Non Motor Rating Scale. Issue 4 (13th March 2023)

• Record Type: Journal Article
• Authors: Cubo, Esther; Luo, Sheng; Martínez‐Martín, Pablo; Stebbins, Glenn T.; Lin, Jeffrey; Choi, Dongrak; García‐Bustillo, Alvaro; Mir, Pablo; Santos‐Garcia, Diego; Serrano‐Dueñas, Marcos; Rodriguez‐Violante, Mayela; Singer, Carlos
• Other Names: Fernández Carmen Borrue investigator.; Alvarez‐Santullano Marina Mata investigator.; Cabo Iria investigator.; Ramírez Inés Legarda investigator.; García María Fuensanta Valero investigator.; Pastor Bárbara Vives investigator.; Planas Anna investigator.; Pons Nuria Caballol investigator.; Ávila Asunción investigator.; Ariztegui Nuria López investigator.; Casado Mª. Isabel Morales investigator.; Peña Mar Sierra investigator.; Peláez María Victoria Sánchez investigator.; Arroyo Sonia Escalante investigator.; Lezama Lidia Binela Lara investigator.; Sauco María Álvarez investigator.; Pajarín Gustavo Fernández investigator.; Frech Fernando Alonso investigator.; Mayordomo Víctor Gómez investigator.; Ferro Álvaro Sánchez investigator.; Fernández David Seoane investigator.; Salas Carmen Gasca investigator.; Elena investigator.; Villalba Natera investigator.; Samaniego‐Toro Dra investigator.; Hernández‐Vara Jorge investigator.; Garretto Nelida investigator.; Arakaki Tomoko investigator.; Moore Henry investigator.; Estrada‐Bellmann Ingrid investigator.; Pedroso Ivonne investigator.; Bernal Oscar investigator.;
• Is Part Of: Movement disorders clinical practice. Volume 10:Issue 4(2023)
• Page Start: 586
• Page End: 595
• Publication Date: 2023-03-13
• Subjects: non‐motor symptoms -- rating scale -- Parkinson's disease; Movement Disorders; Movement disorders -- Periodicals; Movement disorders; Periodicals; Periodicals; 616
• DOI: 10.1002/mdc3.13658
• Languages: English
• ISSNs: 2330-1619

Abstract

Abstract: Background: The Movement Disorder Society‐sponsored Non‐motor Rating Scale (MDS‐NMS) assess the severity and disability caused by non‐motor symptoms (NMS) in Parkinson's disease (PD). Objective: This article encapsulates the formal process for completing this program and the data on the first officially approved non‐English version of the MDS‐NMS (Spanish). Methods: The MDS‐NMS translation program involves four steps: translation and back‐translation; cognitive pre‐testing to ensure that raters and patients understand the scale and are comfortable with its content; field testing of the finalized version; analysis of the factor structure of the tested version against the original English language version for the nine domains that could be analyzed in a confirmatory factor analysis. To be designated an "Official MDS translation, " the confirmatory factor analysis Comparative Fit Index had to be ≥0.90. Results: The Spanish MDS‐NMS was tested in 364 native‐Spanish‐speaking patients with PD from seven countries. For all subjects with fully computable data with all domains of the MDS‐NMS ( n = 349), the Comparative Fit Index was ≥0.90 for the nine eligible domains. Missing data were negligible and moderate floor effect (42.90%) was found for the Non‐Motor Fluctuations subscale. Item homogeneity coefficient was adequate, and the correlation of the MDS‐NMS domains with other measures for related constructs was acceptable ( r s ≥ 0.50). Conclusions: The Spanish version of the MDS‐NMS followed the IPMDS Translation Program protocol, reached the criterion to be designated as an Official Translation, and is now available on the MDS website.