No significant difference between the groups testing positive versus negative for the serum anti-PF4/heparin antibody was found in age, sex, dry weight, body mass index (BMI), systolic blood pressure (SBP), hemoglobin, platelet count and thrombocytopenia (defined as PLT <100×109/L), serum creatinine, albumin, bleeding events within the past three months, thromboembolic events within the past three months, dialysis duration in months, number of weekly dialyses, dialysis membrane, dialyzer, anticoagulant, and Kt/v (Table 2). Here, PF4 is linked to Thrombocytopenia.