N (%) | |
---|---|
Sex | |
Female | 2334 (92) |
Male | 194 (8) |
Ethnicity | |
White | 1335 (53) |
African American | 992 (39) |
Other | 201 (8) |
Age at diagnosis, yrs | |
18–29 | 1285 (51) |
30–39 | 613 (24) |
40–49 | 378 (15) |
50–59 | 180 (7) |
60+ | 72 (3) |
Year of diagnosis | |
< 1985 | 294 (12) |
1985–1994 | 640 (25) |
1995–2004 | 964 (38) |
2005+ | 630 (25) |
Follow-up time since diagnosis, yrs | |
0–5 | 638 (25) |
5–10 | 536 (21) |
10–15 | 445 (18) |
15–20 | 349 (14) |
> 20 | 560 (22) |
Years of education | |
< High school | 216 (9) |
High school | 583 (24) |
Some college | 670 (28) |
College graduate | 949 (39) |
Family annual income, in 2019 US$ | |
< 50,000 | 852 (38) |
50,000–99,000 | 686 (30) |
≥ 100,000 | 726 (32) |
SLE manifestations at the time of diagnosis | |
Malar rash | 867 (35) |
Discoid rash | 310 (12) |
Photosensitivity | 931 (37) |
Oral ulcers | 759 (30) |
Musculoskeletal | 1259 (51) |
Neurologic | 113 (4) |
Serositis | 573 (23) |
Hematologic | 911 (36) |
Proteinuria | 468 (19) |
Immunologic | 1098 (43) |
Alopecia | 717 (29) |
Immunologic markers, ever positive | |
Anti-dsDNA | 1563 (62) |
Low C3 | 1380 (55) |
Low C4 | 1201 (48) |
Anti-Sm | 531 (22) |
Anticardiolipin | 1158 (47) |
Lupus anticoagulant | 639 (26) |
Coombs in the absence of hemolytic anemia | 300 (14) |
SLE: systemic lupus erythematosus.