Fig. 4

A Cumulative thrombosis-free survival curves of four clusters. B Cumulative AT-free survival curves of four clusters. C Cumulative DVT-free survival curves of four clusters. D Cumulative non-criteria manifestation-free survival curves of four clusters. AT, arterial thrombosis; DVT, deep venous thrombosis. Cluster 1: secondary APS; cluster 2: male patients with multiple cardiovascular risk factors; cluster 3: obstetric morbidity; cluster 4: isolated LA positivity