Additional file 2: Table S1. Baseline characteristics of participants with only two and at least three baPWV tests. Table S2. Baseline characteristics of participants with at least two baPWV tests. Table S3. Association of TyG index with baPWV in participants with at least two baPWV tests. Table S4. Association of TyG index with arterial stiffness in participants with at least two baPWV tests.