Table 1.
The clinical and demographic characteristics of all subjects.
| SLE | RA | UCTD | Control | |
|---|---|---|---|---|
| Age, mean ± SD | 28.89 ± 8.88 | 56.65 ± 5.36 | 44.78 ± 9.52 | 32.25 ± 9.43 |
| Female, n (%) | 18 (94.74) | 20 (100) | 7 (77.78) | 16 (100) |
| BMI, mean ± SD | 20.39 ± 2.37 | 22.78 ± 4.53 | 22.24 ± 3.48 | 20.86 ± 2.41 |
| Disease activity, mean ± SD | 13.05 ± 5.20 | 4.08 ± 0.97 | – | – |
| Lupus nephritis, n (%) | 6 (31.58) | – | – | – |
| ESR, mm/h, mean ± SD | 51.88 ± 25.77 | 38.80 ± 23.75 | 40.43 ± 19.68 | – |
| CRP, g/L, mean ± SD | 4.55 ± 4.69 | 21.56 ± 30.43 | 10.68 ± 22.40 | – |
| C3, g/L, mean ± SD | 0.49 ± 0.32 | 1.21 ± 0.28 | 0.77 ± 0.22 | – |
| C4, g/L, mean ± SD | 0.07 ± 0.07 | 0.27 ± 0.06 | 0.26 ± 0.32 | – |
| IgM, g/L, mean ± SD | 1.29 ± 0.44 | 1.37 ± 0.59 | 1.54 ± 0.50 | – |
| IgG, g/L, mean ± SD | 21.67 ± 11.94 | 11.36 ± 3.06 | 20.44 ± 7.55 | – |
| IgA, g/L, mean ± SD | 3.49 ± 3.61 | 2.21 ± 1.08 | 3.06 ± 1.23 | – |
| RF positive, n (%) | – | 17 (85.00) | 3 (33.33) | – |
| Anti-CCP positive, n (%) | – | 18 (90.00) | 3 (33.33) | – |
| Anti-Ro/SSA positive, n (%) | 13 (68.42) | – | 6 (66.67) | – |
| Anti-dsDNA, IU/ml, mean ± SD | 433.82 ± 328.01 | – | – | – |
| Anti-Sm positive, n (%) | 11 (57.89) | – | – | – |
| Anti-La/SSB positive, n (%) | 4 (21.05) | – | – | – |
| Anti-RNP positive, n (%) | 10 (52.63) | – | – | – |
| Anti-Ribosome P positive, n (%) | 9 (47.37) | – | – | – |