Use of Disease Activity Score (DAS28) and Routine Assessment of Patient Index Data 3 (RAPID3) for Assessment of Rheumatoid Arthritis Disease Activity, in the Indian Setting.

Introduction: Patient outcomes in rheumatoid arthritis (RA) have significantly improved with the advent of disease modifying anti rheumatic drugs and the newer biological agents. Various scoring systems available for monitoring disease activity in RA have not yet been put into full use in patient management in India. We aim to study the disease activity score 28 (DAS28) and Routine assessment of patient index 3 (RAPID3), their correlation and patient outcomes in RA.

Materials And Methods: The study was conducted between March 2011-May 2011. A total of 81 patients were included. Patient's history was noted. Clinical examination for tender and swollen joint counts was performed. DAS28 was calculated. MDHAQ was administered to each patient in a language they understood and responses noted. Correlation between DAS28 and RAPID3 was studied using Pearson's correlation coefficient.

Results: RAPID3 and DAS28 showed Pearson's correlation coefficient of 0.8699 (p<0.001). Of the 53 patients who met with DAS28 severity criteria of >5.1, 82.7% showed similar results with RAPID3 suggesting severe disease activity. (X2 = 33.512 and p<0.001). A greater proportion of those whose DMARD initiation was 2 years after disease onset, had higher disease activity as compared to those with earlier initiation.