Estimates of minimal important change in the functional independence measure among older patients with hip fracture.

Hiroyuki Uchida,Tomoaki Shirakawa,Kazuki Ishii,Yudai Kato,Yuki Yamajo,Takumi Igusa,Masataka Sakimoto,Chihaya Machida,Tomohiro Shimada,Kenji Tsuchiya,Senichiro Kikuchi,Kazuki Hirao

Published 2025 in Geriatric Nursing

ABSTRACT

The Functional Independence Measure (FIM) is a widely used scale for assessing activities of daily living (ADLs) among older individuals with hip fractures. However, to confirm the usefulness of the FIM in clinical practice and research for older individuals with hip fractures, the minimal important change (MIC) in the FIM should be clarified. Therefore, this study investigated the MIC in the FIM for this population. In this cohort study, data were collected from older adults with hip fractures who were admitted to convalescent rehabilitation wards in Japan between January 2020 and December 2022. The discharge destination was used as the anchor, and the MIC of the FIM was calculated using the anchor-based adjusted predictive modeling method (MICadj). This study included 199 patients. The estimated MICadj was 23.45 and 25.03 points for the motor and total FIM, respectively. These findings may help interpret the effects of interventions on improving ADLs among older adults with hip fractures.

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