Arrows Plot: Under construction. See published example.(1).
Update: This plot not include the newer diabetic medications reviewed by Huang et al (PMID 29722116).
This plot suggests there is no relationship between mortality and lowering the HbA1c in type 2 diabetics.
References
Badgett R, Dong F, Aung K. Arrow plots show results of meta-analyses of surrogate and clinical outcomes. BMJ. 2011;343:d6126. doi: 10.1136/bmj.d6126. PubMed PMID: 21952453.