Table 1

Presence of IgG, IgM, and IgA cofactor dependent and independent antibodies to cardiolipin in patients with viral infections

  • Cofactor dependence was considered positive when there was a ⩾10% increase in the absorbance reading in the presence of adult bovine serum above those for the same serum samples in the presence of ovalbumin. Cofactor independence was considered positive if there was a reduction in absorbance ⩽10%.

  • HAV = hepatitis A virus; HBV = hepatitis B virus; HCV = hepatitis C virus.