Table 1.

Frequency of anti-ß2 glycoprotein I and anticardiolipin, by isotype, in 796 patients with systemic lupus erythematosus.

No. Patients (%)
Isotypes of anti-ß2-GPI
  IgG+ only12 (1.5)
  IgM+ only74 (9.3)
  IgA+ only104 (13.1)
  IgG, IgM+5 (0.6)
  IgG, IgA+10 (1.3)
  IgM, , IgA+31 (3.9)
  IgG, IgM, IgA+16 (2.0)
  Any IgG43 (5.4)
  Any IgM126 (15.8)
  Any IgA161 (20.2)
Isotypes of anticardiolipin
  IgG+ only114 (14.3)
  IgM+ only114 (14.3)
  IgA+ only19 (2.4)
  IgG, IgM+68 (8.5)
  IgG, IgA+11 (1.4)
  IgM, , IgA+9 (1.1)
  IgG, IgM, IgA+29 (3.6)
  Any IgG222 (27.9)
  Any IgM220 (27.6)
  Any IgA68 (8.5)