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The minimal important difference of the ICU mobility scale.

Calculating the minimal important difference of the ICU mobility scale in adult ICU patients.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12617000536369
Enrollment
184
Registered
2017-04-12
Start date
2017-07-06
Completion date
2017-11-08
Last updated
2019-07-15

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

Conditions

None listed

Brief summary

A prospective multi-center study of adult patients admitted to intensive care (ICU) or high dependency unit's across Victoria. Ethical approval will be sort through The Alfred Hospital, Monash University and the individual ethics boards for each participating site. This study aims to use anchor and distribution based methods to establish the minimal important difference (MID) of the ICU mobility scale (IMS) in a critically ill population. Anchor based: Where patients are treated by the same clinician physiotherapist within 24 hours of admission and discharge to ICU they will be asked two questions on the final assessment. “Has the patient’s mobility changed since admission to ICU?” and “If yes, how much have they changed?’ The rate of change will be scored as: 1- almost the same, hardly better at all, 2- a little better, 3- somewhat better, 4- moderately better, 5- a good deal better, 6- a great deal better and 7- a very great deal better. Similar assessments will be made for deterioration, substituting “worse” for “better”11. The IMS will also be independently collected at both time points by a clinical researcher. Distribution based: The patients’ IMS scores from ICU admission and discharge will be used to estimate the MID using two distribution based methods, the standard error of the mean and the effect size.

Interventions

Patients will be observed through an intensive care or high dependency care unit stay, from admission to discharge. There will be no change to standard care and the patients will not be required to complete any additional tests for the study.

Sponsors

Alfred Hospital
Lead SponsorHospital

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Inclusion criteria: Patients will be screened by a clinical researcher at each site. Patients will be eligible for inclusion if they are: 1) over 18 years of age, 2) admitted to ICU/HDU for over 24 hours and expected to stay for another 24 hours, 3) alive on discharge from ICU, 4) assessed by the same physiotherapist within 24 hours of admission and discharge from ICU and there is at least 48 hours between the two assessments.

Exclusion criteria

Exclusion criteria: Patients will be excluded if the ICU admission or the goals of treatment are for comfort measures only.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026