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Published on: June 16, 2016
Comparison and Agreement of Criteria for Classifying Improvement in Walking Ability During Inpatient Rehabilitation
Urška Puh1,2, Tea Čuk1, Bojan Čeru1
1University Rehabilitation Institute, 1000 Ljubljana, Slovenia.
Abstract:
Background/Objectives: To evaluate classification of improvement and agreement of walking-ability improvement criteria derived from outcome measures of walking capacity and performance among inpatients with spinal cord injury (SCI). Methods: Retrospective analysis of admission and discharge data from adults with SCI in the single-centre database from years 2020 to 2023: Six-minute Walk Test (6MWT), Ten-metre Walk Test (10MWT), Walking Index for Spinal Cord Injury; selected items of Spinal Cord Independence Measure (SCIM-III), and Functional Independence Measure; Spinal Cord Injury Functional Ambulation Inventory (SCI-FAI) Walking Mobility subscale. Twenty-three criteria for assessing walking-ability improvement including distribution-based change threshold (DBCT) and provisional milestones for in-home or in-the-community walking (derived from stroke population) and/or related independence were evaluated. Proportion of patients who progressed according to each criterion and agreement between criteria were calculated. Results: Data from 281 individuals were analysed (median 2 months since SCI). Improvement in SCIM-III Mobility Categories was achieved in 47%. Estimated DBCT of 6MWT (69 m) was exceeded in 46%, and DBCT of 10MWT at comfortable speed (CS) in 42% of participants. Forty-two percent of participants improved in provisional Walking Ability Categories (WACs) based on 6MWT or 10MWT_CS, 39% on SCIM-III-Stairs criterion, and 36% on the SCI-FAI criterion. Conclusions: The estimated DBCT and the WACs for 6MWT and 10MWT_CS are promising criteria to assess improvement in walking capacity after rehabilitation in patients with SCI; however, they require prospective validation against patient-centred and real-world mobility anchors. SCIM-III Mobility Categories and Stairs are recommended for assessing improvement in walking-related independence, and the SCI-FAI criterion for walking performance in everyday life.
