ITGA2B and autoimmune thrombocytopenic purpura: Moreover, according to the cut-off values determined by ROC analysis, the positive ratio when using anti-GPIb/IX and anti-GPIIb/IIIa combination were 62.19% (125/201) in ITP patients and 18.25% (23/126) in non-ITPs, which were higher than 25–39% in ITP patients and 4–9% in non-ITPs detected by MAIPA assay when using anti-GPIb/IX and anti-GPIIb/IIIa combination [9, 32].