Positivity Rates of Tests Used at Immune Thrombocytopenia Diagnosis to Detect Associated Diseases. a Prospective Multicenter Cohort Study of 218 Patients

Introduction:The frequency ofimmune thrombocytopenia (ITP)-associated diseases detected at ITP onset is not well known. The positivity rates of tests performed at ITP onset in order to detect these diseases are discussed or unknown, leading to discrepancies among recommendations. The aim of this study was to compare the positivity rates of tests used at ITP diagnosis to detect ITP-associated diseases in the overall ITP population, in the presence of signs evocative of these diseases and in the absence of these signs.