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	Bath Ankylosing Spondylitis Functional Index (BASFI)	強直性脊椎炎疾患活動性指標（BASDAI）	関節活動性スコア28関節（DAS28）	Routine Assessment of Patient Index Data 3 (RAPID3)
分野	リウマチ学	リウマチ学	リウマチ学	リウマチ学
系統	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1994	1994	1995	2008
提唱者	Calin et al.	Garrett et al.	Prevoo et al.	Pincus et al.
種類	Patient-reported outcome (PRO)	Patient-reported outcome (PRO)	Clinician-rated	Patient-reported outcome (PRO)
原典	Calin A, Garrett S, Whitelock H, Kennedy LG, O'Hea J, Mallorie P, Jenkinson T. A new approach to defining functional ability in ankylosing spondylitis: the development of the Bath Ankylosing Spondylitis Functional Index. The Journal of Rheumatology. 1994;21(12):2281-2285.	Garrett S, Jenkinson T, Kennedy LG, Whitelock H, Gaisford P, Calin A. A new approach to defining disease status in ankylosing spondylitis: the Bath Ankylosing Spondylitis Disease Activity Index. The Journal of Rheumatology. 1994;21(12):2286-2291.	Prevoo ML, Hart's AM, Van Houwelingen HC, et al. Modified disease activity scores that include twenty-eight-joint counts. Development and validation in a prospective longitudinal study of patients with rheumatoid arthritis. Arthritis & Rheumatism. 1995;38(1):44-48.	Pincus T, Bergman MJ, Sokka T, Roth SH, Swearingen C, Yazici Y. Activity of rheumatoid arthritis is similar in patients seen in a primary care physician-based practice and in an academic rheumatology-based practice. Arthritis Care Research. 2008;59(9):1229-1236.
別名	BASFI, BAS-FI	BASDAI, BAS-DAI	DAS28, DAS28-CRP, DAS28-ESR	RAPID3, RAPID-3
関連	4	4	3	3
概要	The BASFI is a patient-reported outcome measure of functional disability in ankylosing spondylitis (AS), assessing physical limitations in 10 common daily activities. Introduced by Calin et al. in 1994, BASFI measures the impact of AS on quality of life and functional capacity, complementing BASDAI (disease activity). While BASDAI reflects inflammatory burden, BASFI reflects the consequences of inflammation and spinal damage on a patient's ability to perform daily tasks. BASFI is used alongside BASDAI in AS management to capture both disease activity and its functional impact.	The BASDAI is a patient-reported outcome measure of disease activity in ankylosing spondylitis (AS), a chronic inflammatory arthropathy affecting the spine and axial skeleton. Introduced by Garrett et al. in 1994, BASDAI uses six simple patient self-report items focused on the cardinal symptoms of AS: fatigue, spinal pain, peripheral joint involvement, and morning stiffness. As a PRO measure, BASDAI is practical for routine monitoring, responsive to treatment, and strongly associated with clinical outcomes and spinal damage progression, making it a cornerstone outcome in AS management and clinical trials.	The DAS28 is a composite measure of rheumatoid arthritis (RA) disease activity, combining joint counts, inflammatory markers, and patient-reported global health. Developed in 1995 by Prevoo and colleagues, it has become the gold standard for monitoring RA activity in clinical trials and practice. It integrates objective clinical signs with laboratory and subjective assessment, providing a single numerical index of disease burden.	RAPID3 is a patient-reported outcome (PRO) measure of rheumatoid arthritis disease activity based on three simple self-report items: patient-counted swollen and tender joints and overall health assessment. Introduced by Pincus et al. in 2008, RAPID3 was designed for primary care and busy practices where joint examination is impractical or time-limited. Remarkably, RAPID3 correlates strongly with clinician-examined composite measures (DAS28, CDAI, SDAI) and predicts long-term radiographic progression equally well, making it a practical alternative for resource-limited settings and self-directed monitoring.