Makoto Tokunaga, MD, PhD, Ryoji Nakanishi, MD, PhD, Susumu Watanabe, MD, PhD, Ichiro Maeshiro, PT, Akane Hyakudome, OT, Kei Sakamoto, OT, Tomoaki Okubo, PT, Shinichi Nojiri, PT, Hiroaki Yamanaga, MD, PhD
Jpn J Compr Rehabil Sci 5: 7-11, 2014
Objective: To correct Functional Independence Measure
(FIM) effectiveness for low FIM scores to obtain an
index independent of FIM score on admission.
Methods: A total of 1,101 stroke patients in Kaifukuki
rehabilitation wards were studied. They were divided
into 13 groups according to the motor FIM score on
admission, in 6-point increments. The parameter “A”
was derived so that motor FIM effectiveness,
calculated as motor FIM gain/(A - motor FIM score
on admission), was around 0.65.
Results: Motor FIM effectiveness was an index
independent of motor FIM score on admission when A
was 42, 64, 79, 83, 87, 89, or 91 points (when motor
FIM on admission was 13-18 points, 19-24 points,
25-30 points, 31-36 points, 37-42 points, 43-48
points, or 49-90 points).
Conclusions: Corrected FIM effectiveness, which is
independent of FIM on admission, may be useful for
comparisons between hospitals admitting patients
with varying degrees of severity.
Key words: FIM effectiveness, patient severity, FIM on admission, correction