Table 1 Demographic and medical characteristics of Participants
Controls N = 40 | RA patients N = 40 | P-value* | |
|---|---|---|---|
Age (years), Mean ± SD | 53.3 ± 8.2 | 53.7 ± 7.8 | 0.824 |
Gender, N(%) | |||
Female | 34 (85) | 34 (85) | – |
Male | 6 (15) | 6 (15) | |
Marital status, N(%) | |||
Not married | 1 (2.5) | 2 (5) | 1.000 |
Married | 39 (97.5) | 38 (95) | |
Education, N(%) | |||
Middle school or lower | 32 (80) | 27 (67.5) | 0.151 |
Secondary school | 3 (7.5) | 8 (20) | |
Diploma | 3 (7.5) | 1 (2.5) | |
Bachelor's degree | 1 (2.5) | 4 (10) | |
Master's degree | 0 | 0 | |
Doctorate or higher | 1 (2.5) | 0 | |
Job, N(%) | |||
Housewife/unemployed | 30 (75) | 30 (75) | 0.514 |
Full-time employee | 4 (10) | 1 (2.5) | |
Self-employed | 4 (10) | 5 (12.5) | |
Retired | 2 (5) | 4 (10) | |
RA medications, N(%) | |||
Prednisolone | 39 (97.5) | – | |
Methotrexate | 31 (77.5) | ||
Hydroxychloroquine | 22 (55) | ||
Leflunomide | 9 (22.5) | ||
Sulfasalazine | 3 (7.5) | ||
Adalimumab | 3 (7.5) | ||
Methylprednisolone acetate | 2 (5) | ||
Etanercept | 2 (5) | ||
Prednisolone dose (mg/day), Mean ± SD | 5.7 ± 2.2 | – | |
Positive Anti-citrullinated protein antibody, N(%) | 13 (65) | – | |
Smoking, N(%) | 4 (10) | 6 (15) | 0.749 |
Disease duration (years), Mean ± SD | 5.7 ± 6.3 | – | |
Positive rheumatoid factor, N(%) | 4 (10) | – | |
Remission (DAS28 < 2.6) | 15 (37.5) | – | |
Disease activity, N(%) | |||
Low (2.6 ≤ DAS28 < 3.2) | 7 (17.5) | ||
Moderate (3.2 ≤ DAS28 ≤ 5.1) | 12 (30) | ||
High(5.1 < DAS28) | 6 (15) | ||