Background RAPID3 (Routine Assessment of Patient Index Data 3) is an index for rheumatoid arthritis activity evaluation with no formal joint count or analytical parameters. It was developed by T. Pincus and in its English version included in MDHAQ has demonstrated good correlated with composite indices as CDAI or DAS-28 (1). A spanish version of MDHAQ has been made
Objectives To assess whether the Spanish version of RAPID3 included in the spanish version of MDHAQ is useful to monitoring rheumatoid arthritis (RA) patients in our country
Methods A questionnaire using only the sections of the Spanish version of MDHAQ included in the calculation of RAPID3 was built. All patients attending to the monographic rheumatoid arthritis clinic completed the questionnaire before entering the office. Once in the office a joints count and physician assessment was performed. Acute phase reactants were and DAS28-ESR, DAS28-CRP, SDAI and CDAI indices were calculated. Results were analyzed using the Spearman correlation coefficient.
Results 154 patients (78.8% women) mean age (SD) of 59 (14) years and disease duration 11 (10) years were included. All patients were treated with DMARDs. 70% received low-dose corticosteroids. 51% were treated with biologic DMARDs, mostly in combination with methotrexate. 312 questionnaires (2.02 per patient) over6 months were analyzed.
Correlation between RAPID3 and other indices was not influenced by sex, treatment, age, disease duration, use of corticoids or biologic DMARDs.
The Spearman correlation coefficient between RAPID3 and the different indices were:
Conclusions RAPID3 may be useful for monitoring RA patients due to its excellent correlation with joint composite indices that use joint counts and acute phase reactants.
Pincus T. et al. RAPID3 (Routine Assessment of Patient Index Data 3), a Rheumatoid Arthritis Index Without Formal Joint Counts for Routine Care: Proposed Severity Categories Compared to Disease Activity Score and Clinical Disease Activity Index Categories. The Journal of Rheumatology 2008; 35:11; doi:10.3899/jrheum
Disclosure of Interest None declared
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