Association of Sodium-Glucose Cotransporter-2 Inhibitors vs Dipeptidyl Peptidase-4 Inhibitors With Pneumonia, COVID-19, and Other Adverse Respiratory Events in Patients With Type 2 Diabetes Mellitus: A Systematic Review and Meta-analysis.

2024-08
Canadian journal of diabetes 48(6)
- Mengna Wang
- Ming Li
- Libin Wang
- Fang Wang
- Xulin Cao
- Shengyou Li
- Zhichang Zheng

PubMed: 38636589
DOI: 10.1016/j.jcjd.2024.04.009

Study Design

Type: Meta-Analysis
Population: patients with type 2 diabetes mellitus
Methods: Systematic search of PubMed, Embase, Cochrane Library for studies comparing SGLT2i vs DPP4i; meta-analysis using Stata 15.0
Funding: Unclear

Objective

Our aim in this study was to systematically assess the association of sodium-glucose cotransporter-2 inhibitors (SGLT2i) vs dipeptidyl peptidase-4 inhibitors (DPP4i) with pneumonia, COVID-19, and adverse respiratory events in patients with type 2 diabetes mellitus (DM).

Methods

PubMed, Embase, and Cochrane Library databases were retrieved to include studies on DM patients receiving SGLT2i (exposure group) or DPP4i (control group). Stata version 15.0 statistical software was used for the meta-analysis.

Results

Ten studies were included, all 10 of which were used for the qualitative review and 7 for the meta-analysis. According to the meta-analysis, patients receiving SGLT2i had a lower incidence of pneumonia (odds ratio [OR] 0.62, 95% confidence interval [CI] 0.51 to 0.74) and pneumonia risk (OR 0.63, 95% CI 0.60 to 0.68, p=0.000) compared with those receiving DPP4i. The same situation was seen for mortality for pneumonia (OR 0.49, 95% CI 0.39 to 0.60) and pneumonia mortality risk (OR 0.47, 95% CI 0.42 to 0.51). There was lower mortality due to COVID-19 (OR 0.31, 95% CI 0.28 to 0.34) and a lower hospitalization rate (OR 0.61, 95% CI 0.56 to 0.68, p=0.000) and incidence of mechanical ventilation (OR 0.69, 95% CI 0.58 to 0.83, p=0.000) due to COVID-19 in patients with type 2 DM receiving SGLT2i. Qualitative analysis results show that SGLT2i were associated with a lower incidence of COVID-19, lower risk of obstructive airway disease events, and lower hospitalization rate of health-care-associated pneumonia than DPP4i.

Conclusion

In patients with type 2 DM, SGLT2i are associated with a lower risk of pneumonia, COVID-19, and mortality than DPP4i.