Evidence map›Paper›PMID 40702027›Full record

ArticleScientific reports2025

Validation of the de Morton Mobility Index for measuring mobility related activities in Hungarian institutionalized older adults.

Zsigmond Gyombolai, Alexandra Zimonyi-Bakó, Anna Zsófia Kubik, Brigitta Arndt, Izabella Jónásné Sztruhár, Richárdné Mayer, András Simon, Gyöngyvér Molnár, Éva Kovács

Abstract readValidation Study
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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

9 authors.

Zsigmond GyombolaiDoctoral School of Health Sciences, Semmelweis University, Budapest, Hungary.
Alexandra Zimonyi-BakóInstitute of Languages for Specific Purposes, Semmelweis University, Budapest, Hungary.
Anna Zsófia KubikDoctoral School of Health Sciences, Semmelweis University, Budapest, Hungary.
Brigitta ArndtDoctoral School of Health Sciences, Semmelweis University, Budapest, Hungary.
Izabella Jónásné SztruhárFaculty of Health Sciences, Department of Physiotherapy, Semmelweis University, Budapest, Hungary.
Richárdné MayerGizella Old Age Home, Biatorbágy, Hungary.
András SimonFaculty of Health Sciences, Department of Physiotherapy, Semmelweis University, Budapest, Hungary.
Gyöngyvér MolnárMTA-SZTE Digital Learning Technologies Research Group, Institute of Education, University of Szeged, Szeged, Hungary.
Éva KovácsFaculty of Health Sciences, Department of Morphology and Physiology, Semmelweis University, Budapest, Hungary. kovacs.eva@semmelweis.hu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In old age, decline in mobility has a significant impact on performing activities of daily living, participating in society, and on quality of life. Mobility changes should be measured and monitored using measures with appropriate psychometric properties. The psychometrically sound de Morton Mobility Index (DEMMI) assesses a broad range of mobility related activities. The aim of this study was to develop a valid and reliable, cross-culturally adapted Hungarian version of the DEMMI scale (HU-DEMMI) among institutionalized older people. Development of the HU-DEMMI was conducted using a cross-sectional study design with an overall of 170 participants. Validity was tested via construct (established by hypothesis testing) and structural validity (explored with structural equation modeling (SEM)). Reliability was assessed using three measurement properties: internal consistency (determined by Cronbach's alpha), test-retest reliability (by intraclass correlation coefficients (ICC)), and measurement error (standard error of measurement (SEM), minimally detectable change (MDC), limits of agreement (LoA)). Linguistic and cultural adaptation was realized successfully. As for construct validity, the HU-DEMMI showed a strong correlation with mobility related measures and a weak correlation with non-mobility measure. Significant differences in the DEMMI score were found across groups being at various levels of assistive device use. Internal consistency by Cronbach's alpha was 0.906; the dimensionality testing revealed no violation of unidimensionality. However, a three-dimensional structure uncovered a better fit. The inter- and intra-rater ICC of DEMMI scores were 0.981 and 0.989, respectively. The SEM for inter-rater reliability test was 2.924 and the MDC

Indexed as

Activities of Daily LivingGeriatric AssessmentInstitutionalizationMobility LimitationAgedAged, 80 and overCross-Sectional StudiesFemaleHumansHungaryMalePsychometricsQuality of LifeReproducibility of ResultsCross-cultural adaptationDEMMIDimensionalityMobilityPsychometric propertiesReliabilityValidity

Identifiers

PMID40702027
PMCPMC12287279

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