Characteristics of patients admitted to the ICU
| Total number of patients | 61 |
| Age, median (range) (years) | 33 (16–69) |
| Male:female | 13:48 |
| Caucasian:Asian:Afro-Caribbean | 30:15:16 |
| Duration of SLE at admission, median (range) (years) | 6.4 (0.2–26.9) |
| SLE:SLE+APS:primary APS | 24:36:1 |