Table 3a.
Achievement of low disease activity state by race and ethnicity
| 2005-2007 | 2010-2012 | |||||||
|---|---|---|---|---|---|---|---|---|
| % | 95% CI | Pairwise P value | Overall P value | % | 95% CI | Pairwise P value | Overall P value | |
| Unadjusted Rates | ||||||||
| All patients | 53.3 | (52.4-54.3) | <0.001 | 63.7 | (63-64.4) | <0.001 | ||
| White | 54.7 | (53.7-55.8) | 64.5 | (63.8-65.3) | ||||
| Black | 43.3 | (39.2-47.3) | <0.001 | 58.4 | (55.7-61) | <0.001 | ||
| Hispanic | 41.2 | (37.5-45) | <0.001 | 56.1 | (53-59.3) | <0.001 | ||
| Asian | 62.8 | (55.8-69.9) | 0.029 | 65.5 | (60.2-70.8) | 0.729 | ||
| Adjusted Rates | ||||||||
| Model 1 | <0.001 | <0.001 | ||||||
| White | 53.4 | (48.8-58) | 63.2 | (60-66.3) | ||||
| Black | 44.6 | (38.6-50.5) | <0.001 | 58.0 | (53.9-62.1) | <0.001 | ||
| Hispanic | 50.6 | (44.7-56.4) | 0.158 | 57.2 | (52.8-61.7) | <0.001 | ||
| Asian | 64.1 | (56.2-72) | 0.003 | 62.8 | (56.7-68.8) | 0.882 | ||
| Model 2 | <0.001 | 0.026 | ||||||
| White | 53.4 | (48.7-58.1) | 28.4 | (25.8-30.9) | ||||
| Black | 46.6 | (40.5-52.8) | 0.002 | 23.7 | (20.4-26.9) | 0.039 | ||
| Hispanic | 52.4 | (46.5-58.3) | 0.636 | 24.4 | (20.8-28) | 0.015 | ||
| Asian | 63.4 | (55.5-71.4) | 0.005 | 27.0 | (21.7-32.3) | 0.998 | ||
| Model 3 | <0.001 | 0.001 | ||||||
| White | 54.2 | (49.6-58.8) | 62.2 | (59.1-65.3) | ||||
| Black | 46.1 | (40.1-52.1) | <0.001 | 57.7 | (53.7-61.7) | 0.001 | ||
| Hispanic | 52.6 | (46.8-58.4) | 0.410 | 58.2 | (53.9-62.5) | 0.013 | ||
| Asian | 64.2 | (56.5-72) | 0.004 | 61.2 | (55.3-67.1) | 0.690 | ||
| Model 4 | <0.001 | <0.001 | ||||||
| White | 53.2 | (48.5-58) | 62.6 | (59.3-65.8) | ||||
| Black | 45.1 | (39.1-51.1) | <0.001 | 57.6 | (53.5-61.7) | <0.001 | ||
| Hispanic | 50.4 | (44.6-56.3) | 0.154 | 57.3 | (52.9-61.7) | 0.001 | ||
| Asian | 63.8 | (56-71.6) | 0.002 | 61.6 | (55.6-67.6) | 0.710 | ||
| Model 5 | <0.001 | 0.068 | ||||||
| White | 53.6 | (49-58.2) | 61.7 | (58.5-64.8) | ||||
| Black | 46.9 | (41-52.9) | 0.001 | 58.6 | (54.6-62.6) | 0.022 | ||
| Hispanic | 52.6 | (46.8-58.3) | 0.606 | 59.2 | (54.8-63.5) | 0.110 | ||
| Asian | 63.0 | (55.3-70.8) | 0.006 | 60.9 | (55-66.8) | 0.762 | ||
Note: Disease activity defined by the Clinical Disease Activity Index (CDAI);
Values are the mean with 95% confidence intervals.
Adjusted models included a series of five mixed model linear regression models including: practice setting (Model 1), patient demographic/ socioeconomic factors (Model 2); markers of rheumatoid arthritis severity (Model 3), current rheumatoid arthritis treatment (Model 4) and all significant factors (p<0.05) from Models 1 through 4 (Model 5)