Table 1.
The prevalence of the American College of Rheumatology (ACR) classification criteria for systemic lupus erythematosus (SLE) in 162 patients fulfilling at least 4 criteria at the time when the study was conducted (data available for 162 patients), at the time of establishing the diagnosis, and at disease onset (data available for 125/162 and 78/162 patients, respectively)
| No (%) of patients fulfilling each criterion at: |
||||
|---|---|---|---|---|
| ACR classification criteria for SLE | SLE onset | SLE diagnosis | time when the study was conducted | |
| 1 |
Malar rash |
21 (26.9) |
48 (38.4) |
100 (61.7) |
| 2 |
Discoid rash |
4 (5.1) |
7 (5.6) |
24 (14.8) |
| 3 |
Photosensitivity |
18 (23.1) |
43 (34.4) |
84 (51.9) |
| 4 |
Oral ulcers |
11 (14.1) |
18 (14.4) |
27 (16.7) |
| 5 |
Arthritis |
41 (52.6) |
69 (55.2) |
115 (71.0) |
| 6 |
Serositis |
10 (12.8) |
19 (15.2) |
28 (17.3) |
| a |
Pleuritis |
6 (7.7) |
13 (10.4) |
17 (10.5) |
| b |
Pericarditis |
2 (2.6) |
9 (7.2) |
11 (6.8) |
| c |
Sub-criterion not determined |
2 (2.6) |
3 (2.4) |
5 (3.1) |
| 7 |
Renal disorder |
6 (7.7) |
19 (15.2) |
42 (25.9) |
| 8 |
Neurologic disorder |
2 (2.6) |
3 (2.4) |
9 (5.6) |
| a |
Seizures |
2 (2.6) |
3 (2.4) |
6 (3.7) |
| b |
Psychosis |
0 (0.0) |
0 (0.0) |
3 (1.9) |
| 9 |
Hematologic disorder |
29 (37.2) |
67 (53.6) |
114 (70.4) |
| a |
Hemolytic anemia |
3 (3.8) |
11 (8.8) |
14 (8.6) |
| b |
Leukopenia |
18 (23.1) |
43 (34.4) |
75 (46.3) |
| c |
Lymphopenia |
5 (6.4) |
26 (20.8) |
53 (32.7) |
| d |
Thrombocytopenia |
13 (16.7) |
19 (15.2) |
26 (16.0) |
| e |
Sub-criterion not determined |
0 (0.0) |
1 (0.8) |
5 (3.1) |
| 10 |
Immunologic disorder |
12 (15.4) |
74 (59.2) |
145 (89.5) |
| a |
Anti-DNA |
10 (12.8) |
68 (54.4) |
136 (84.0) |
| b |
Anti-Sm |
NA* |
NA* |
NA* |
| c |
Antiphospholipid antibodies |
3 (3.8) |
32 (25.6) |
45 (27.8) |
| d |
Sub-criterion not determined |
1 (1.3) |
3 (2.4) |
8 (4.9) |
| 11 | Antinuclear antibody | 18 (23.1) | 110 (88.0) | 155 (95.7) |
*NA – data not available.