Fig. 4

Restricted cubic spline of the linear trends between TyG, TyG-WC, and TyG-WHtR indices with all-cause and cause-specific mortality of MetS population. (A) all-cause mortality risk with different levels of the TyG index; (B) cardiovascular mortality risk with different levels of the TyG index; (C) diabetes mortality risk with different levels of the TyG index; (D) all-cause mortality risk with different levels of TyG-WC index; (E) cardiovascular mortality risk with the different level of TyG-WC index; (F) diabetes mortality risk with the different level of TyG-WC index; (G) all-cause mortality with the different level of TyG-WHtR index; (H) cardiovascular mortality risk with the different level of TyG-WHtR index; (I) diabetes mortality risk with the different level of TyG-WHtR index. The dotted lines represent 95% confidence intervals. Spline analyses were adjusted for age, gender, race, marital status, educational level, family income-poverty ratio, smoking status, alcohol use, cancer, CKD, CVD, BMI (only for TyG index), energy intake, serum levels of TC, HDL-C, LDL-C, BUN, UA, eGFR, ALT, AST, ALB, and TBil. TyG: triglyceride-glucose; WC: waist circumference; WHtR: waist-to-height ratio; TC: total cholesterol; CKD: chronic kidney disease; CVD: cardiovascular disease; eGFR: estimated glomerular filtration rate; BUN: blood urea nitrogen; HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol; UA: uric acid; ALT: glutamic-pyruvic transaminase; AST: aspartate transaminase; ALB: albumin; TBil: total bilirubin; BMI: body mass index