The efficacy and safety of <i>Ginkgo biloba</i> L. leaves extract combined with ACEI/ARB on diabetic kidney disease: a systematic review and meta-analysis of 41 randomized controlled trials.

However, the effect on FBG did not reach statistical significance when the sample size was less than 80, but it became statistically significant when the sample size exceeded 80. 3.8 Publication bias For UAER, Scr, FBG, TC, TG, SBP, and DBP, both the funnel plots ( Figure 13A–G ) and Egger’s test ( p = 0.20, 0.93, 0.69, 0.86, 0.25, 0.17 and 0.27, respectively) suggested no obvious publication bias ( Supplementary Material S8 ).

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