Mean antichromatin and anti-dsDNA levels in SACQ patients who subsequently flared versus those who remained SACQ (1 sample per patient). Values are mean ± SD unless otherwise specified.
| Characteristics | Antichromatin | Anti-dsDNA | ||||
|---|---|---|---|---|---|---|
| Flare, n = 9 | SACQ, n = 14 | p | Flare, n = 9 | SACQ, n = 14 | p | |
| IgA | 0.077 ± 0.117 | 0.071 ± 0.085 | 0.93 | 0.032 ± 0.030 | 0.073 ± 0.087 | 0.34 |
| IgM | 0.664 ± 0.909 | 0.430 ± 0.480 | 0.83 | 0.434 ± 0.220 | 0.338 ± 0.287 | 0.12 |
| IgG | 0.423 ± 0.314 | 0.691 ± 0.682 | 0.60 | 0.297 ± 0.139 | 0.474 ± 0.788 | 0.48 |
| IgG1 | 0.133 ± 0.112 | 0.153 ± 0.112 | 0.60 | 0.078 ± 0.065 | 0.141 ± 0.106 | 0.17 |
| IgG2 | 0.031 ± 0.026 | 0.069 ± 0.089 | 0.56 | 0.026 ± 0.033 | 0.022 ± 0.023 | 0.78 |
| IgG3 | 0.095 ± 0.080 | 0.075 ± 0.070 | 0.60 | 0.049 ± 0.054 | 0.058 ± 0.060 | 0.85 |
| IgG4 | 0.132 ± 0.253 | 0.046 ± 0.110 | 0.50 | 0.046 ± 0.058 | 0.035 ± 0.054 | 0.66 |
| IgG/IgM | 1.26 ± 1.66 | 1.79 ± 2.87 | 0.60 | 1.46 ± 0.97 | 3.76 ± 7.73 | 1.00 |
SACQ: serologically active clinically quiescent; Ig: immunoglobulin.