2019 EULAR/ACR criteria
| All | Intermittent | Persistent | |
| n=42 | n=18 | n=24 | |
| ANA+ | 40 (95%)*† | 18 (100%) | 22 (92%)*† |
| Immunology | 32 (77%) | 16 (89%) | 16 (67%) |
| Anti-dsDNA antibody OR anti-Smith antibody | 28 (67%) | 14 (78%) | 14 (58%) |
| Anti-cardiolipin antibodies OR anti-B2GP1 antibodies or lupus anticoagulant | 8 (19%) | 5 (28%) | 3 (13%) |
| Low C3 and low C4 | 15 (36%) | 8 (44%) | 7 (29%) |
| Low C3 or low C4 | 9 (21%) | 6 (33%) | 3 (13%) |
| Muskuloskeletal | |||
| Arthritis/joint involvement | 34 (81%) | 15 (83%) | 19 (79%) |
| Mucocutaneous | 39 (93%) | 17 (94%) | 22 (92%) |
| Acute cutaneous lupus | 33 (79%) | 16 (89%) | 17 (71%) |
| Oral ulcers | 23 (55%) | 10 (56%) | 13 (54%) |
| Non-scarring alopecia | 22 (52%) | 8 (44%) | 14 (58%) |
| Subacute cutaneous or discoid lupus | 11 (26%) | 6 (33%) | 5 (21%) |
| Renal | 15 (36%) | 10 (56%) | 5 (21%) |
| Renal biopsy class II, III, IV or V | 10 (24%) | 8 (44%) | 2 (8%) |
| Proteinuria >0.5 g/24 hours (no biopsy) | 5 (12%) | 2 (11%) | 3 (13%) |
| Serosal | 8 (19%) | 5 (28%) | 3 (13%) |
| Pleural or pericardial effusion | 5 (12%) | 3 (17%) | 2 (8%) |
| Acute pericarditis | 5 (12%) | 2 (11%) | 3 (13%) |
| Haematological | 24 (57%) | 13 (72%) | 11 (46%) |
| Leucopenia | 21 (50%) | 10 (56%) | 11 (46%) |
| Thrombocytopenia | 4 (10%) | 3 (17%) | 1 (4%) |
| Autoimmune haemolysis | 2 (5%) | 2 (11%) | 0 (0%) |
| Constitutional | |||
| Fever | 4 (10%) | 2 (11%) | 2 (8%) |
| Neurological | 2 (5%) | 1 (6%) | 1 (4%) |
| Delirium | 1 (2%) | 1 (6%) | 0 (0%) |
| Seizure | 1 (2%) | 0 (0%) | 1 (4%) |
| Psychosis | 0 (0%) | 0 (0%) | 0 (0%) |
| EULAR/ACR criteria met | 37 (88%) | 18 (100%) | 19 (79%) |
| 1997 ACR criteria met‡ | 40 (95%) | 18 (100%) | 22 (92%) |
| SLICC criteria met‡ | 40 (95%) | 18 (100%) | 22 (92%) |
*One participant is ANA− but dsDNA+.
†One participant ANA 1:40.
‡n=2 participants met 1997 ACR criteria but not SLICC criteria and n=2 participants met SLICC criteria but not 1997 ACR criteria.
ACR, American College of Rheumatology; EULAR, European Alliance of Associations for Rheumatology; SLICC, Systemic Lupus International Collaborating Clinics.