5 years ago

Intraclass differences in the risk of hospitalization for heart failure among patients with type 2 diabetes initiating a dipeptidyl peptidase-4 inhibitor or a sulphonylurea: Results from the OsMed Health-DB registry

Stefania Saragoni, Pierluigi Russo, Saula Vigili de Kreutzenberg, Mario Melazzini, , Luca Degli Esposti, Angelo Avogaro, Gian Paolo Fadini
Aims To re-analyse data from a previous retrospective study on 127 555 patients, in which we showed that dipeptidyl peptidase-4 (DPP-4) inhibitor therapy was associated with a lower risk of hospitalization for HF (HHF) than sulphonylurea (SU) therapy, in order to evaluate intraclass differences among DPP-4 inhibitors and SUs. Methods We included patients with type 2 diabetes (T2D) initiating DPP-4 inhibitor or SU therapy, alone or in combination with metformin. Patients undergoing intraclass switch, those with a previous HHF, those receiving insulin treatment, and those with <6 months observation were excluded. We calculated the incidence of first and total HHF events/1000 person-years. Cox proportional hazard and Poisson multiple regression models, as well as propensity-score matching, were used to account for baseline confounders. Results The analysis included 17 615 DPP-4 inhibitor users (60.1% sitagliptin; 27.0% vildagliptin; 12.9% saxagliptin) and 86 734 SU users (37.5% glibenclamide; 34.6% glimepiride; 27.9% gliclazide). No intraclass difference in the incidence rate of first and total HHF events was noted among the 3 DPP-4 inhibitors or among the 3 SUs. Multivariable adjustments for baseline confounders or propensity-score matching did not change the results. In addition, no intraclass difference in HHF risk was observed in patients at high compared with low cardiovascular risk. Conclusions In a cohort of patients with T2D taken from approximately one-third of the Italian population, no intraclass difference was noted for DPP-4 inhibitor and SU therapy with regard to HHF risk.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/dom.12979

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