Patient characteristics. Number given with each characteristic indicates the number of patients who answered that question. Values are percentages unless otherwise indicated.
| Characteristic | |
|---|---|
| No. patients | 322 |
| Sex | 286 |
| Women | 257 |
| Men | 19 |
| Data missing | 10 |
| Age, yrs | 283 |
| mean (SD) | 45.0 (13.4) |
| Disease duration, yrs | 273 |
| mean (SD) | 10.5 (8.6) |
| Marital status, n | 254 |
| Married/living with partner | 61 |
| Single | 30 |
| Widowed | 4 |
| Separated/divorced | 6 |
| Ethnic distribution, n | 279 |
| White (British, Irish) | 74 |
| Black (Caribbean, African) | 12 |
| Asian (Indian, Pakistani, Bangladeshi) | 10 |
| Chinese | 3 |
| Mixed/others | 1 |
| Clinical characteristics (ACR criteria), n | 284 |
| Malar rash | 42 |
| Photosensitivity rash | 45 |
| Discoid rash | 18 |
| Mouth ulcers | 43 |
| Arthritis/arthralgia | 90 |
| Serositis | 37 |
| Renal disease | 21 |
| Central nervous system disease | 13 |
| Hematological disease | 69 |
| Positive antinuclear antibodies | 92 |
| Presence of anti-dsDNA, Sm, or phospholipid antibodies | 72 |
| BILAG Index, n | 282 |
| A score in any system | 7 |
| Score no more than B in any system | 50 |
| Score no more than C in any system | 36 |
| Score of D and/or E in all systems | 7 |
| SLICC ACR-DI score, n | 274 |
| mean (SD) | 0.75 (1.25) |
| 0 (no accumulated damage) | 60 |
| 1 | 20 |
| 2 | 10 |
| 3 or more | 10 |
ACR: American College of Rheumatology; BILAG: British Isles Lupus Assessment Group; SLICC: Systemic Lupus International Collaborating Clinics; ACR-DI: ACR Damage Index.