Fig. 2

Comparison of the baPWV levels among the TyG index quartiles (a) and the associations of the TyG index with baPWV (b). a Differences in baPWV values across quartiles were tested using Kruskal–Wallis test and post hoc test. *P < 0.05 versus the first quartile; #P < 0.05 versus the second quartile; &P < 0.05 versus the third quartile. b Data were fitted with a linear regression model using restricted cubic splines with 3 knots at 10, 50, and 90th percentiles of TyG index. The model was adjusted for age, sex, smoking, drinking, regular exercise, SBP, BMI, hs-CRP, and diabetes. The solid line represented the estimations, and the shaded area represented 95% confidence interval