Table 1.
Characteristics of participants
| RA patients (n = 20) | Healthy individuals (n = 20) | p | |
|---|---|---|---|
| Age | |||
| mean (SD) | 69.4 (5.1) | 69.6(6.6) | NS |
| Sex | |||
| female - no. (%) | 16 (80.0) | 16 (80.0) | NS |
| Body mass index | |||
| mean (SD) | 21.4 (3.6) | 23.4 (3.4) | NS |
| Comorbidity | |||
| one or over - no. (%) | 7 (35.0) | 8 (40.0) | NS |
| Employment | |||
| employed - no. (%) | 4 (20.0) | 7 (35.0) | NS |
| Family composition | |||
| with children - no. (%) | 9 (45.0) | 7 (35.0) | NS |
| with spouse - no. (%) | 9 (45.0) | 9 (45.0) | |
| single - no. (%) | 2 (10.0) | 4 (20.0) | |
| Disease duration | |||
| < 1y - no. (%) | 5 (25.0) | - | |
| 1y-5y - no. (%) | 2 (10.0) | ||
| ≧ 5y - no. (%) | 13 (65.0) | ||
| Radiographic evaluation | |||
| ≦ Larsen III- no. (%) | 9 (45.0) | - | |
| ≦ Larsen IV- no. (%) | 11 (55.0) | ||
| Operation due to RA | |||
| one or over - no. (%) | 5 (25.0) | - | |
| DAS28-CRP | |||
| mean (SD) | 3.59 (1.22) | - | |
| mild (<2.7) - no. (%) | 6 (30.0) | ||
| moderate (2.7-4.1) - no. (%) | 9 (45.0) | ||
| high (>4.1) - no. (%) | 5 (25.0) |
NS non-significance by Welch two sample t test or Fisher’s exact test