Antiphospholipid syndrome damage index (DIAPS): distinct long-term kinetic in primary antiphospholipid syndrome and antiphospholipid syndrome related to systemic lupus erythematosus.

We identified a distinct pattern of damage in PAPS and APS related to SLE. Damage in PAPS is an early event, while APS+SLE is associated with higher long-term damage, with a striking increment of damage along the follow-up. A diagnosis delay is correlated with higher damage scores. Damage surveillance therefore requires different approaches for these two conditions.