Table 2 Baseline demographic and clinical characteristics of SLE patients.

From: Risk factors for thrombotic events in Korean patients with systemic lupus erythematosus

 

All (N = 259)

Thrombotic events (n = 27)

No event (n = 232)

P-value

Age at onset of SLE, years

34.0 ± 13.7

35.1 ± 14.2

33.9 ± 13.6

0.646

Females (%)

239 (92.3)

24 (88.9)

215 (92.7)

0.486

Disease duration, months

2.87 ± 5.44

3.68 ± 4.79

2.77 ± 5.51

0.412

Ever smoker (former or current) (%)

15 (5.8)

3 (11.1)

12 (5.2)

0.196

Diabetes mellitus (%)

6 (2.3)

0 (2.7)

6 (2.6)

0.513

Hypertension (%)

98 (37.8)

17 (63.0)

81 (34.9)

0.004

SLEDAI-2K score

10.7 ± 6.18

12.1 ± 6.53

10.5 ± 6.13

0.219

Met the ACR-97 criteria (%)

Malar rash

131 (60.6)

10 (37.0)

121 (52.2)

0.137

Discoid rash

26 (10.0)

1 (3.7)

25 (10.8)

0.214

Photosensitivity

81 (31.3)

7 (25.9)

74 (31.9)

0.527

Oral ulcer

47 (18.1)

2 (7.4)

45 (19.4)

0.096

Arthritis

114 (44.0)

10 (37.0)

104 (44.8)

0.440

Pleuritis

31 (12.0)

2 (7.4)

29 (12.5)

0.344

Pericarditis

23 (8.9)

4 (14.8)

19 (8.2)

0.206

CNS involvement

21 (8.1)

5 (18.5)

16 (6.9)

0.036

Renal involvement

Proteinuria

96 (37.1)

15 (55.6)

81 (34.9)

0.036

Hematuria

70 (32.0)

13 (48.1)

70 (30.2)

0.058

Pyuria

67 (25.9)

9 (33.3)

58 (25.0)

0.349

Hematological involvement

Lymphopenia

201 (77.6)

20 (74.1)

181 (78.0)

0.642

Anemia

78 (30.1)

9 (33.3)

69 (29.7)

0.700

Thrombocytopenia

66 (25.5)

8 (29.6)

58 (25.0)

0.601

Concomitant disease (%)

Interstitial lung disease

10 (3.9)

2 (7.4)

8 (3.4)

0.280

Raynaud’s phenomenon

60 (23.2)

4 (14.8)

56 (24.1)

0.202

Anti-phospholipid syndrome

13 (5.0)

6 (22.2)

7 (3.0)

0.001

Associated Sjögren’s syndrome

27 (10.4)

4 (14.8)

23 (9.9)

0.305

Thyroid disease

20 (7.7)

1 (3.7)

19 (8.2)

0.357

  1. Except where otherwise indicated, data are presented as the mean ± standard deviation.
  2. Abbreviations: CNS, central nervous system; SLE, systemic lupus erythematosus; SLEDAI, systemic lupus erythematosus disease activity index.