A review of the sapporo and revised Sapporo criteria for the classification of antiphospholipid syndrome. Where do the revised sapporo criteria add value?

OBJECTIVE: The preliminary classification criteria for antiphospholipid syndrome (APS), or the Sapporo criteria, are widely used for the inclusion of patients with APS into clinical studies. Revised Sapporo criteria have been proposed as an improved criteria set. Whether these criteria sets fulfill the current standards of measurement science are unknown. The purpose of this study was (1) to evaluate the developmental methodology and …