CRP and rheumatoid arthritis: The previously listed RA disease activity measures employ, among other parameters, the number of swollen and tender joints out a total of 28 (DAS28, CDAI, SDAI), the patient and doctor’s global assessment of disease activity (CDAI, SDAI, only the patient in PAS-II), questionnaires for the patient (RAPID3, PAS-II), and CRP level (SDAI, DAS28-CRP) or ESR (DAS28-ESR).