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- Tobias Braun, Christian Grüneberg, Anna Coppers, Linda Tofaute, and Christian Thiel.
- Department of Applied Health Sciences, Hochschule für Gesundheit, 44789 Bochum, Germany. tobias.braun@hs-gesundheit.de.
- J Rehabil Med. 2018 Feb 28; 50 (3): 292-301.
ObjectiveTo compare the measurement properties of the de Morton Mobility Index (DEMMI) and the Hierarchical Assessment of Balance and Mobility (HABAM) in an older acute medical inpatient population.DesignCross-sectional.SubjectsOlder acute medical inpatients.MethodsThe DEMMI, HABAM and further assessments were performed after hospital admission. Construct validity was assessed by testing 13 hypotheses on convergent and known-groups validity. Test-retest reliability and minimal detectable change were estimated based on a re-assessment of unchanged patients. Floor and ceiling effects were used to indicate adequacy of scale width.ResultsFor both the DEMMI and HABAM, 11 (85%) hypotheses regarding construct validity were confirmed (n = 158). Both scales showed strong correlations with other multi-component mobility scales (Spearman's rho 0.75-0.92). Neither floor nor ceiling effects were evident. The intraclass correlation coefficient was 0.98 (95% confidence interval (95% CI) 0.96-0.99) for the DEMMI and 0.99 (95% CI 0.99-0.99) for the HABAM, respectively (n = 30). The minimal detectable change with 90% confidence was 6 points on the 100-point DEMMI scale and 1 point on the 26-point HABAM scale.ConclusionThe DEMMI and the HABAM appear to be suitable for measuring mobility in older acute medical patients.
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