Table 1.
The characteristic of the pSS patients and healthy adults.
| pSS (n = 55) | Healthy adults (n = 114) | |
|---|---|---|
| Age, years, mean ± SD | 49.19 ± 12.38 | 44.9 ± 13.96 |
| Female/male | 55/0 | 64/50 |
| ESSDAI, mean ± SD | 3.94 ± 1.13 | NA |
| Diseases duration years (range) | 3 (2–7) | NA |
| ESR (mm/h) | 33 ± 18 | NA |
| Anti-SSA positivity, n (%) | 46/50 (92%) | NA |
| Anti-SSB positivity, n (%) | 24/50 (48%) | NA |
| α-Fod, range | 14.63 (10.06–25.86) | NA |
| RF titre, IU/mL, range | 159 (55.4–392.0) | NA |
| IgA titre, g/L, mean ± SD | 4.14 ± 1.83 | NA |
| IgG titre, g/L, mean ± SD | 24.44 ± 5.60 | NA |
| IgM titre, g/L, mean ± SD | 1.46 ± 1.20 | NA |
| C3, g/L, mean ± SD | 1.007 ± 0.214 | NA |
| C4, g/L, mean ± SD | 0.193 ± 0.062 | NA |
NA: no data available; pSS: primary Sjögren’s syndrome; ESSDAI: EULAR Sjögren’s Syndrome Disease Activity Index; ESR: erythrocyte sedimentation rate; α-Fod: alpha-fodrin; RF: rheumatoid factor; Ig: immunoglobulin.
The information was collected and showed as mean ± SD or median (25th–75th percentiles).