Department of Social Pharmacy, University of Ljubljana, Faculty of Pharmacy, Askerceva cesta 7, 1000, Ljubljana, Slovenia.
Acta Diabetol. 2022 Feb;59(2):233-241. doi: 10.1007/s00592-021-01805-8. Epub 2021 Oct 5.
AIMS: To compare the influence of sodium-glucose co-transporter 2 inhibitors (SGLT2i) and dipeptidyl peptidase-4 inhibitors (DPP-4i) on the risk of lower extremity amputations in patients with type 2 diabetes in Slovenia. METHODS: This retrospective cohort study included patients aged 40 years or more who were administered a newly introduced SGLT2i or DPP-4i between June 2014 and June 2018. Patients treated with insulin at baseline and patients with a history of amputation were excluded. Patients were matched in a 1:1 ratio using propensity score matching. Survival analysis was performed; hazard ratio (HR) and ratios of cumulative hazards at 1, 2, 3, and 4 years were estimated. On-treatment and intention-to-treat approaches were used. RESULTS: The study cohort (mean age: 64 years) consisted of 2,939 new users of SGLT2i (empagliflozin, 59%; dapagliflozin, 41%) matched to 2,939 new users of DPP-4i. In the on-treatment analysis (median follow-up of 2 years), the incidence of amputations was higher in SGLT2i than in DPP-4i users (4.2 vs. 2.7 per 1,000 patient years), resulting in a HR of 1.58 (95% CI 0.85-2.92; p = 0.145). An intention-to-treat analysis yielded to similar HR of 1.86 (95% CI: 1.10-3.14; p = 0.020). There was no difference in amputation rates in the first two years, but SGLT2i users had a 2.81-fold higher (95% CI: 1.63-4.84; p = 0.007) cumulative hazard of amputation at 4 years than did DPP-4i users. CONCLUSIONS: Compared with DPP-4i use, SGLT2i use did not result in a statistically significant higher overall risk of lower extremity amputations. However, the results suggest that SGLT2i may increase the risk of amputation with long-term use.
目的:比较钠-葡萄糖协同转运蛋白 2 抑制剂(SGLT2i)和二肽基肽酶-4 抑制剂(DPP-4i)对斯洛文尼亚 2 型糖尿病患者下肢截肢风险的影响。
方法:本回顾性队列研究纳入了 2014 年 6 月至 2018 年 6 月期间新接受 SGLT2i 或 DPP-4i 治疗的年龄 40 岁或以上的患者。排除了基线使用胰岛素治疗和有截肢史的患者。使用倾向评分匹配以 1:1 的比例对患者进行匹配。进行生存分析;估计 1、2、3 和 4 年的危险比(HR)和累积危险比。采用治疗和意向治疗方法。
结果:研究队列(平均年龄:64 岁)由 2939 例新使用 SGLT2i(恩格列净,59%;达格列净,41%)的患者组成,与 2939 例新使用 DPP-4i 的患者相匹配。在治疗分析中(中位随访 2 年),SGLT2i 使用者的截肢发生率高于 DPP-4i 使用者(每 1000 患者年 4.2 例 vs. 2.7 例),HR 为 1.58(95%CI 0.85-2.92;p=0.145)。意向治疗分析得出相似的 HR 为 1.86(95%CI:1.10-3.14;p=0.020)。在前两年截肢率没有差异,但 SGLT2i 使用者在 4 年时截肢的累积危险增加了 2.81 倍(95%CI:1.63-4.84;p=0.007),高于 DPP-4i 使用者。
结论:与 DPP-4i 相比,SGLT2i 的使用并未导致下肢截肢的总体风险显著增加。然而,结果表明 SGLT2i 的长期使用可能会增加截肢风险。
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