ICU sedation, delirium & recovery
Predictive validity and interrater reliability of the German intensive care unit mobility scale (IMS)
Authors' conclusion
The German IMS demonstrates robust predictive validity and exceptional interrater reliability in a multiprofessional ICU setting.
Study context
- Population
- Patients in a 21-bed anaesthesiology-led intensive care unit (ICU) (German translation of the IMS)
- Participants
- 100 patients
- Outcome
- Predictive validity (ICU and hospital length of stay (LOS), 90-day mortality, functional outcomes at discharge) and interrater reliability of the German IMS
Methodological detailssingle-centre, validation study, IMS assessed by nurses, physical therapists, residents and attending physicians, three times daily
- Single-centre
- Validation study
- IMS assessed by nurses, physical therapists, residents and attending physicians, three times daily
Main finding
As reported in the abstract
Higher mean IMS during ICU stayEstimate (95% CI)P value
Shorter hospital LOS; independent predictor
IRR 0.90(0.82–0.95)
P = 0.004Lower 90-day mortality; independent predictor
OR 0.47(0.30–0.74)
P = 0.002- Interrater reliability excellent across all professional categories
- >0.95
Observational data: associations, not effects.
Further findings
- Higher discharge IMS correlated with improved functional outcomes (grip strength, Medical Research Council Sum Score (MRC-SS)), lower risk of ICU-acquired weakness and reduced 90-day mortality
Original publication
Predictive validity and interrater reliability of the German intensive care unit mobility scale (IMS). J Crit Care. Published 6 June 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →