Mild-moderate group Severe group χ2 P
Anti-GPIIb/IIIa Positive 6 (10.2%) 53 (89.8%) 0.530 0.467
Negative 5 (18.5%) 22 (81.5%)
Anti-GPIb/IX Positive 7 (12.5%) 49 (87.5%) <0.001 1.000
Negative 4 (13.3%) 26 (86.7%)