Effects of DPP4 Inhibitors as Neuroprotective Drug on Cognitive Impairment in Patients with Type 2 Diabetes Mellitus: A Meta-Analysis and Systematic Review

Figure 5

Meta-analysis of the impact of DPP4 inhibitors on glycosylated hemoglobin. Forest map showing the difference in glycosylated hemoglobin variations with diabetes treated or not treated with DPP4i in 9 trials (n = 875). Black squares indicate mean differences, horizontal lines through black squares indicate 95% CI, and green diamonds indicate pooled effect sizes shown using a fixed-effect Hedges model.