Psychometric properties of the De Morton Mobility Index (DEMMI) in older individuals with cognitive impairment in inpatient geriatric care

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00005591

Enrollment

150

Registered

2015-02-04

Start date

2015-02-09

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Geriatric inpatients with cognitive impairment G00-G99

Interventions

Group 1: To examine the DEMMI's psychometric properties, following procedures will be conducted: Convergent validity: All participants will be assessed with the DEMMI and other measures of mobility (

Eligibility

Sex/Gender

All

Age

60 Years to No maximum

Inclusion criteria

Inclusion criteria: - Acute geriatric inpatient - Admission within the last 7 days - Mini Mental State Examination score =24

Exclusion criteria

Exclusion criteria: - contra-indication for mobilization - Isolated due to infection - Imminent death - Blindness - Deafness - Discharged before assessment - Non-German speaker - In state of coma or severely reduced vigilance - Akute severe organ failure - Akute severe psychiatric condition - Any other medical/physical condition where a mobility examination could worsen the medical state or where it would highly stress the participant.

Design outcomes

Primary

Measure	Time frame
Convegent Validity: Hypothesis testing with respect to correlations between the index test (DEMMI) and other validated measures of mobility (Hierarchical Assessment of Balance and Mobility, Functional Ambulation Categories, Performance Oriented Mobility Assessment, gait speed, Timed Up And Go Test, 2 Minute Walk Test, Short Physical Performance Battery, Barthel Index-Mobility).	—

Secondary

Measure	Time frame
1) Test-retest reliability (level of agreement betwen 2 test results = Intra Class Coefficient [ICC]). 2) Feasibility (time to administer the DEMMI, number of adverse events). 3) Responsiveness-to-change: Hypothesis testing based on correlations between changes in the index test (DEMMI) and the reference tests. Area under the curve (AUC) with respect to a change in mobility levels (yes/no based on the "global rating of change"). 4) Interpretability: floor- and ceiling-effects will be reported descriptively. 5) Unidimensionality: Rasch analysis.	—

Measure

Time frame

1) Test-retest reliability (level of agreement betwen 2 test results = Intra Class Coefficient [ICC]). 2) Feasibility (time to administer the DEMMI, number of adverse events). 3) Responsiveness-to-change: Hypothesis testing based on correlations between changes in the index test (DEMMI) and the reference tests. Area under the curve (AUC) with respect to a change in mobility levels (yes/no based on the "global rating of change"). 4) Interpretability: floor- and ceiling-effects will be reported descriptively. 5) Unidimensionality: Rasch analysis.

—

Countries

Germany

Contacts

Public ContactRalf-Joachim Schulz

St. Marien-Hospital Köln GmbH

alexandra.kriha@cellitinnen.de0221 1629 2303

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 6, 2026