To compare disease activity and the improvement of disease activity evaluated between by Disease Activity Score 28 using erythrocyte sedimentation rate (DAS28-ESR) and by DAS28 using C-reactive protein (DAS28-CRP) in Japanese patients with rheumatoid arthritis (RA).
Disease Activity Score 28 (DAS28) using C-reactive protein underestimates disease activity and overestimates EULAR response criteria compared with DAS28 using erythrocyte sedimentation rate in a large observational cohort of rheumatoid arthritis patients in Japan.
Department of Rheumatology, Sagamihara National Hospital, National Hospital Organization 18-1, Sakuradai Sagamihara-city, Kanagawa, 228-8522, Japan. t-matsui@sagamihara-hosp.gr.jp
