Abstract
AimsTo investigate the effectiveness of sodium‐glucose co‐transporter‐2 (SGLT2) inhibitors on the risk of progression to end‐stage renal disease (ESRD) and all‐cause mortality in a broad range of patients with type 2 diabetes (T2D) using a Korean nationwide cohort.Materials and MethodsUsing data from the Korean National Health Insurance Service database from January 2014 to December 2017, a total of 701 674 patients were identified with T2D. We divided these patients into new users of SGLT2 inhibitors and new users of other glucose‐lowering drugs (oGLDs). Using propensity scores, patients in the two groups were matched 1:1. We assessed the risk of ESRD and all‐cause death.ResultsThere were 45 016 patients in each group, and baseline characteristics were well balanced between the groups. The patients' mean age was 58.1 ± 10.6 years and mean estimated glomerular filtration rate (eGFR) was 89.2 ± 27.4 mL/min/1.73m2, and 8% of patients had proteinuria. We identified 167 incident ESRD cases and 1070 all‐cause deaths during follow‐up. Use of SGLT2 inhibitors versus oGLDs was associated with a lower risk of ESRD (hazard ratio [HR] 0.47, 95% confidence interval [CI] 0.34 to 0.65) and all‐cause death (HR 0.82, 95% CI 0.73 to 0.93). In a subgroup analysis by eGFR, initiation of SGLT2 inhibitor treatment, compared with oGLD treatment, was associated with lower risk of progression to ESRD among patients with eGFR 60 to 90 mL/min/1.73m2 and those with eGFR < 60 mL/min/1.73m2, and a lower risk of all‐cause death was associated with SGLT2 inhibitors versus oGLDs in patients with eGFR ≥90 and 60 to 90 mL/min/1.73m2.ConclusionIn this large nationwide study of Korean patients with T2D, initiation of SGLT2 inhibitors versus oGLDs was associated with lower risk of ESRD and all‐cause death.
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