[How reliable is the Functional Independence Measure (FMI)?]

Area of Science:

• Rehabilitation Medicine
• Clinical Assessment Tools
• Patient Autonomy Measurement

Background:

• The Functional Independence Measure (FIM) is a widely recognized tool for evaluating patient independence in Activities of Daily Living (ADL).
• Assessing the reliability of the FIM is crucial for its accurate application in clinical settings.
• Previous literature suggests the FIM is a reliable instrument, but further validation in diverse settings is beneficial.

Purpose of the Study:

• To evaluate the interrater reliability and internal consistency of the Functional Independence Measure (FIM).
• To analyze FIM data collected from patients in a rehabilitation ward.
• To determine if nurse familiarity with patients impacts FIM reliability.

Main Methods:

• Data were collected from 154 patients on a Berlin rehabilitation ward.
• Each patient was assessed by two nurses.
• Interrater reliability was compared between two phases: one where only one nurse knew the patient, and a second where both nurses knew the patient.

Main Results:

• Interrater reliability was significantly higher in the second phase when both nurses were familiar with the patient.
• High correlations were found between the items of the FIM scale.
• The internal consistency of the FIM demonstrated values consistent with existing literature.

Conclusions:

• The Functional Independence Measure (FIM) demonstrates high reliability for assessing patient autonomy in Activities of Daily Living.
• Nurse familiarity with patients enhances the interrater reliability of the FIM.
• The study validates the FIM as a dependable instrument in rehabilitation settings.