Figure 5: Dose-response relationship between RDW/Hb (per 1-unit increase) and adverse cardiovascular event risk.
From: An overall and dose-response meta-analysis of red blood cell distribution width and CVD outcomes

(A) Relationship between RDW and all-cause mortality. (B) Relationship between RDW and MACEs. Dotted lines represent the 95% CI for the fitted trend. LCI: lower limit of confidence interval; UCI upper limit of confidence interval; 95% CI: 95% confidence interval; RDW: red blood cell distribution width; Hb: hemoglobin.