Yuki Senju, MD, Masahiko Mukaino, MD, DMSc, Megumi Ozeki, MD, DMSc, Makoto Watanabe, OTR, Yuki Okochi, OTR, Koji Mizutani, RPT, Eiichi Saito, MD, DMSc,
Shigeru Sonoda, MD, PhD
Jpn J Compr Rehabil Sci 11: 9-16, 2020
Objective: This study investigates interrater agreement
between clinician ratings using the Rating reference
guide developed in Japan for the International
Classification of Functioning, Disability and Health
(ICF) Rehabilitation Set and patient self-assessments
for body function categories of the ICF Rehabilitation
Set.
Methods: Eighty-eight inpatients and/or outpatients
who received rehabilitation participated in this study.
For the assessment of the nine body function categories
of the ICF Rehabilitation Set, the patients were asked
to complete the self-assessment questionnaires, and the
clinicians rated the patients using the Rating reference
guide. Interrater agreement between clinicians and
patients was investigated using weighted kappa
statistics and an intraclass correlation coefficient (ICC
(2,1)) to determine interrater agreement of each
category and the total score, respectively.
Results: The weighted kappa statistics ranged from
0.58 to 0.87. Eight out of nine categories presented
with weighted kappa statistics greater than 0.61. The
total score of all categories showed no significant
difference between clinicians and patients and
presented with an ICC (2,1) of 0.85.
Conclusion: No significant difference was observed
between clinician ratings with the Rating reference
guide for body function categories and patient selfassessments,
showing feasibility of the Rating
reference guide as a means of describing the status of
patientsf functioning.
Key words: ICF, ICF Rehabilitation Set, Rating reference guide, body function, interrater agreement