Table 1.
Clinical and epidemiological characteristics of the sampled patients.
| Variables | Patients (n = 45) |
|---|---|
| Epidemiological variables | |
| Age, years | 50.1 ± 11.5 |
| Female/male sex, n (%) | 23 (51.1)/22 (48.9) |
| White race, n (%) | 2 (4.4) |
| Non-white race, n (%) | 43 (95.6) |
| Household income of 1–3 minimum wages/month* (%) | 24 (53.3) |
| Formal schooling, years | 9.5 ± 3.8 |
| Clinical variables | |
| Symmetric polyarticular, n (%) | 31 (68.9) |
| Nail involvement, n (%) | 31 (68.9) |
| Enthesitis, n (%) | 23 (51.1) |
| Dactylitis, n (%) | 18 (40.0) |
| Oligoasymmetric, n (%) | 10 (22.2) |
| Spondylitis, n (%) | 10 (22.2) |
| Mutilating, n (%) | 3 (6.7) |
| Uveitis, n (%) | 2 (4.4) |
| Disease activity indices | |
| DAS28-CRP | 3.4 ± 1.6 |
| DAS28-ESR | 2.91 ± 2.0 |
| BASDAI | 3.22 ± 2.1 |
| HAQ | 1.06 ± 0.7 |
| PASI | 2.0 ± 2.9 |
| MASES | 1.9 ± 3.2 |
Source: the authors (2019).
Results expressed as mean values ± standard deviation, absolute numbers and percentages.
DAS28-CRP: disease activity score 28-joint count with C reactive protein; DAS28-ESR: disease activity score 28-joint count with erythrocyte sedimentation rate; BASDAI: Bath ankylosing spondylitis activity index; HAQ: health assessment questionnaire; PASI: psoriatic arthritis skin index; MASES: Maastricht ankylosing spondylitis enthesitis score.
*At the time of writing, the monthly Brazilian minimum wage corresponded to USD ~ 270.