Morbidity and mortality in antiphospholipid syndrome based on cluster analysis: a 10-year longitudinal cohort study

Objective Using cluster analysis, to identify the subgroup of patients with APS with the poorest prognosis and clarify the characteristics of that subgroup. Methods This is a longitudinal retrospective cohort study of APS patients. Using clinical data and the profile of aPL, cluster analysis was performed to classify the patients into subgroups. Events were defined as thrombosis, severe bleeding, and mortality. Results A total of 168 patients...