Table 1 Clinical characteristics of 831 Taiwanese SLE patients

SLE case

831/831 (100.00%)

71/831 (8.54%)

760/831 (91.46%)

Age (years), mean ± standard deviation

30.77 ± 11.73

31.72 ± 12.36

30.68 ± 11.68

Oral ulcer

218/831 (26.23%)

14/71 (19.72%)

204/760 (26.84%)

Arthritis

522/831 (62.82%)

39/71 (54.93%)

483/760 (63.55%)

Malar rash

459/831 (55.23%)

39/71 (54.93%)

420/760 (55.26%)

Discoid rash

160/831 (19.25%)

18/71 (25.35%)

142/760 (18.68%)

Photosensitivity

187/831 (22.5%)

14/71 (19.72%)

173/760 (22.76%)

Pleural effusion

158/831 (19.01%)

12/71 (16.9%)

146/760 (19.21%)

Pericardial effusion

100/831 (12.03%)

13/71 (18.31%)

87/760 (11.45%)

Ascites

43/831 (5.17%)

3/71 (4.23%)

40/760 (5.26%)

Total counts for nephritis status

831 (100%)

71 (100%)

760 (100%)

 Nephritis negative

370/831 (44.52%)

25/71 (35.21%)

345/760 (45.39%)

 Nephritis positive

461/831 (55.48%)

46/71 (64.79%)

415/760 (54.61%)

Neuropsychiatric manifestations

133/831 (16%)

10/71 (14.08%)

123/760 (16.18%)

Leukopenia (WBC count < 3500/μl)

466/831 (56.08%)

41/71 (57.75%)

425/760 (55.92%)

Anemia (hemoglobin < 9 g/dl)

252/831 (30.32%)

11/71 (15.49%)

241/760 (31.71%)

Thrombocytopenia (platelet count < 10⁵/μl)

215/831 (25.87%)

23/71 (32.39%)

192/760 (25.26%)

Anti-dsDNA

618/813 (76.01%)

54/70 (77.14%)

564/743 (75.91%)

Complement depressed

632/818 (77.26%)

54/69 (78.26%)

578/749 (77.17%)

Anti-RNP

292/677 (43.13%)

24/62 (38.71%)

268/615 (43.58%)

Anti-Sm

256/678 (37.76%)

28/63 (44.44%)

228/615 (37.07%)

Anti-SSA

362/560 (64.64%)

30/48 (62.5%)

332/512 (64.84%)

Anti-SSB

149/560 (26.61%)

8/48 (16.67%)

141/512 (27.54%)

Anticardiolipin IgG

184/655 (28.09%)

12/50 (24%)

172/605 (28.43%)

Anticardiolipin IgM

55/600 (9.17%)

4/48 (8.33%)

51/552 (9.24%)