Table 4. Predictors of medication adherence and persistence in PsA patients treated with anti-TNF drugs at Belo Horizonte Specialty Pharmacy (multivariable analysis).
| Medication adherence | Medication persistence | ||||
|---|---|---|---|---|---|
| Variables | RR [95%CI] | p-value | Variables | RR [95%CI] | p-value |
| BASDAI | 0.94 [95%CI 0.91:0.97] | <0.001 | BASDAI | 0.94 [95%CI 0.90:0.97] | 0.001 |
| Ethnicity | 0.005 | NSAID [no use] | 1.30 [95%CI 1.06:1.60] | 0.011 | |
| White | 1 | Comorbidities [yes] | 1.34 [95%CI 1.08:1.66] | 0.009 | |
| Non-white | 1.28 [95%CI 1.08:1.51] | Corticoids [no use] | 1.37 [95%CI 1.09:1.71] | 0.006 | |
| bDMARD | 0.002 | bDMARD | <0.001 | ||
| Subcutaneous | 1 | Subcutaneous | 1 | ||
| Intravenous | 1.36 [95%CI 1.12:1.66] | Intravenous | 1.58 [95%CI 1.30:1.91] | ||
BASDAI: Bath Ankylosing Spondylitis Activity Index; bDMARD: biological disease-modifying antirheumatic drug; RR: risk ratio; CI: confidence interval