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Table 1 Clinical and laboratory features of patients with APS and SLE, and healthy controls

From: Anti-factor Xa antibodies in patients with antiphospholipid syndrome and their effects upon coagulation assays

Diagnosis

APS (n = 59)

SLE/APL+ (n = 60)

SLE/APL- (n = 46)

HC (n = 40)

Age, mean, years ± SD

46 ± 12

37 ± 11

36 ± 13

31 ± 8

Sex, male/female, n

10/49

1/59

6/40

19/21

VT only, n (%)

31 (52)

5 (8)

10 (21)

0

PM only, n (%)

13 (22)

6 (10)*

10 (25)*

0

VT + PM, n (%)

12 (20)

1 (2)*

3 (7.5)*

0

CAPS, n (%)

3 (5)

0

0

0

Other ARD, n (%)

SLE 25 (42)

0

0

0

aCL, mean GPL units

59.7

15.2

13

9

Anti-β2GPI, mean AU

35,5

22

4

3

LA, n (%)

46 (78)

31 (51.7)

0

0

Anti-Thr+, n (%)

21 (35.6)

36 (60)

23 (50)

2 (5)

Anti-FVIIa+, n (%)

5 (8.5)

7 (11.7)

9 (19.6)

2 (5)

Anti-FXa+, n (%)

20 (33.9)

29 (48.3)

23 (50)

0

Anti-PS/Xa+, n (%)

8 (13.6)

20 (33.3)

15 (32.6)

1 (2.5)

  1. *Non-APS miscarriages. Anti-β2GPI, anti- β2-glycoprotein I; aCL, anticardiolipin antibody; APS, antiphospholipid syndrome; aPL, antiphospholipid antibody; ARD, autoimmune rheumatic disease; AU, arbitrary units; CAPS, catastrophic antiphospholipid syndrome; FD, fetal death; FVIIa, factor VIIa; FXa, factor Xa; GPL, IgG phospholipid; HC, healthy control; LA, lupus anticoagulant; Myo, myositis; RA, rheumatoid arthritis; PM, pregnancy morbidity; PS, phosphatidylserine; SLE, systemic lupus erythematosus; SS, Sjögren’s syndrome; SSc, systemic sclerosis; Thr, thrombin; VT, vascular thrombosis.