In both the Kaplan-Meier and Cox proportional hazards models, patients treated with SGLT2 inhibitor showed a lower risk of HF hospitalization or mortality than those treated with DPP4 inhibitor (HR 0.61 [95% CI 0.44–0.85], P = 0.004, Table 2 and Fig 2). Here, DPP4 is linked to hydrops fetalis.