Demographic and clinical characteristics of 44 patients with different types of SID
| SLE | NSLE | WG | BD | APLAS | |
| No of patients | 15 | 9 | 9 | 5 | 6 |
| Male/female | 1/14 | 2/7 | 3/6 | 4/1 | 1/5 |
| Mean age (SD) | 36.2 (9.6) | 49.9 ( 9.3) | 39.3 (9.1) | 39.8 (14.1) | 40.5 (11.5) |
| Median disease duration (range) | 8.3 (1–18) | 9.2 (5–15) | 6.0 (1–18) | 7.2 (3–16) | 9.2 (1–30) |
| Clinical CNS involvement | 0 (0%) | 9 (100%) | 4 (44%) | 2 (40%) | 6 (100%) |
For abbreviations, see text.