2010 Fiscal Year Final Research Report

Investigation of Health utility measure using by item response theory

Research Project

Project/Area Number	21790509
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Medical sociology
Research Institution	Niigata University of Health and Welfare
Principal Investigator	IZUMI Ryota Niigata University of Health and Welfare, 医療技術学部・作業療法学科, 助教 (80436980)
Project Period (FY)	2009 – 2010
Keywords	医療経済学
Research Abstract	Subjects were 442 patients (The mean ages were 74.8±12.4 years, including 236 women) comprising 296 patients with cerebrovascular disease and 146 patients with hip fracture. Global utility score was -0.01, vision was 0.81, hearing was 0.82, speech was 0.68, ambulation was 0.21, dexterity was 0.67, emotion was 0.63, cognition was 0.44 and pain was 0.67. Ambulation and cognition were lower score. By IRT, difficulty were moderate and discrimination were excellent (vision ; 0.56, hearing ; 0.84, speech ; 1.57, ambulation ; 1.29, dexterity ; 0.86, emotion ; 1.02, cognition ; 1.83 ; pain ; 0.71) in HUI3. In conclusion, HUI have high discrimination in speech, ambulation, emotion and cognition. HUI3 indicate an available measure in rehabilitation.