Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are the newest class of oral diabetes medications. There are concerns of an increased risk of genitourinary infections based on trial data, however this risk at a population level is understudied. We conducted a population-based study using linked administrative databases in Ontario of women and men with diabetes over the age of 66 who were incident users of SGLT2i from Jan-Dec 2016. We quantified the association between SGLT2i and each of genital mycotic infection and urinary tract infection within 30 days of drug initiation using a retrospective cohort design. The comparator group were new users of a DPP-4i. We identified 21,444 incident SGLT2i users and 22,463 DPP-4i users. Among SGLT2i users, 41% were women and the mean age at index was 71.8 ± 5 years. After adjusting for propensity score, age, sex, and recent UTI, there was a 2.47 fold increased risk of a genital mycotic infection with SGLT2i (adjusted hazard ratio (HR), 2.47; 95% CI 2.08-2.92, p < 0.001) within 30 days. For UTI, the adjusted HR was 0.89 (95% CI 0.78-1.00, p=0.05) overall. Incident SGLT2i use among older women and men is associated with an increased risk of genital mycotic infections within 30 days; there is no associated increased risk of UTI. These findings from a real-world setting provide evidence of the potential harms of SGLT2i.


I.C. Lega: None. S. Bronskill: None. M.A. Campitelli: None. J. Guan: None. N.M. Stall: None. K. Lam: None. L.M. McCarthy: None. A. Gruneir: None. P.A. Rochon: None.


Canadian Institutes of Health Research (PJT153060)

Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. More information is available at