| African-American | Caucasian | Hispanic | Other | Total | P | |
|---|---|---|---|---|---|---|
| N | 154 | 183 | 111 | 54 | 502 | |
| RAPID Category | 140 | 171 | 102 | 48 | 461 | 0.067 |
| DAS28 Category | 67 | 43 | 8 | 9 | 127 | 0.326 |
| CDAI Category | 97 | 44 | 12 | 16 | 169 | 0.871 |
| DMARD [N (%)] | 127 (82.5%) | 117 (63.9%) | 77 (69.4%) | 40 (74.1%) | 361 (71.9%) | 0.002* |
| Biologic [N (%)] | 30 (19.5%) | 74 (40.4%) | 46 (41.4%) | 19 (35.2%) | 169 (33.7%) | <0.001** |
| Combination Therapy | <0.001† | |||||
| Neither DMARD or Biologic | 22 (14%) | 42 (23%) | 22 (20%) | 9 (17%) | 95 (19%) | |
| DMARD only | 102 (66%) | 67 (36%) | 43 (39%) | 26 (48%) | 238 (47%) | |
| Biologic only | 5 (3%) | 24 (13%) | 12 (11%) | 5 (9%) | 46 (9%) | |
| Both DMARD and Biologic | 25 (16%) | 51 (28%) | 34 (31%) | 14 (26%) | 124 (25%) | |
*Bonferroni corrected (P<0.008) comparisons: AA vs Caucasian (P<0.001) and AA vs Hispanic (P=0.012). **Bonferroni corrected (P<0.008) comparisons: AA vs Caucasian (P<0.001) and AA vs Hispanic (P<0.001). †Bonferroni corrected (P<0.008) comparisons: AA vs Caucasian (P<0.001) and AA vs Hispanic (P<0.001.)