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Table 1 Baseline characteristics of participants according to quartiles of TyG index

From: Association between triglyceride-glucose index and risk of arterial stiffness: a cohort study

Characteristics Quartiles of TyG index P for trend
Q1(6.81–8.10) Q2(8.10–8.52) Q3(8.52–9.02) Q4(9.02–13.17)
Age, yearsa 43.6 ± 11.0 47.0 ± 12.1 49.3 ± 12.9 48.1 ± 12.4  < 0.001
Male, n (%)b 484 (32.2) 750 (49.7) 907 (60.2) 1040 (69.0)  < 0.001
Active physical activity, n (%)b 231 (15.3) 237 (15.7) 291 (19.3) 262 (17.4) 0.025
Current smoker, n (%)b 245 (16.3) 378 (25.0) 448 (29.7) 541 (35.9)  < 0.001
Current alcohol use, n (%)b 206 (13.7) 290 (19.2) 344 (22.8) 448 (29.7)  < 0.001
BMI, kg/m2 a 23.1 ± 3.1 24.3 ± 3.1 25.2 ± 3.4 26.3 ± 3.4  < 0.001
Waist circumference, cm c 78 (72–85) 83 (76–89) 86 (80–92) 90 (83–96)  < 0.001
FBG, mmol/Lc 4.9 (4.5–5.2) 5.1 (4.7–5.4) 5.2 (4.9–5.7) 5.6 (5.1–6.3)  < 0.001
SBP, mmHg c 116.7 (105.0–128.7) 120.0 (110.0–131.7) 129.3 (117.7–140.0) 130.0 (120.0–140.0)  < 0.001
DBP, mmHg c 77.0 (70.0–81.3) 80.0 (71.3–87.0) 80.7 (76.7–90.0) 84.0 (80.0–90.3)  < 0.001
MAP, mmHg c 90.0 (81.3–96.7) 93.3 (86.7–101.7) 96.7 (90.0–106.0) 100.0 (93.3–108.2)  < 0.001
TC, mmol/Lc 4.4 (4.0–5.0) 4.8 (4.2–5.3) 5.1 (4.5–5.7) 5.3 (4.7–6.0)  < 0.001
TG, mmol/Lc 0.6 (0.6–0.8) 1.0 (0.9–1.1) 1.5 (1.3–1.7) 2.7 (2.1–3.8)  < 0.001
HDL, mmol/Lc 1.6 (1.4–1.9) 1.5 (1.3–1.8) 1.4 (1.2–1.8) 1.3 (1.1–1.6)  < 0.001
LDL, mmol/Lc 2.2 (1.8–2.6) 2.5 (2.1–3.0) 2.7 (2.2–3.2) 2.7 (2.1–3.3)  < 0.001
TyG indexa 7.8 ± 0.2 8.3 ± 0.1 8.7 ± 0.1 9.6 ± 0.5  < 0.001
hs-CRPa 1.6 ± 3.7 1.7 ± 2.9 2.2 ± 4.5 2.3 ± 3.2  < 0.001
baPWV, cm/s a 1301.1 ± 266.5 1399.8 ± 276.5 1491.5 ± 323.1 1540.1 ± 324.7  < 0.001
Diabetes, n (%)b 2 (0.1) 15 (1.0) 59 (3.9) 258 (17.1)  < 0.001
Hypertension, n (%)b 263 (17.5) 440 (29.2) 646 (42.9) 771 (51.2)  < 0.001
  1. N = 6028; Q quartiles, BMI body mass index, FBG fasting blood glucose, SBP systolic blood pressure, DBP diastolic blood pressure;, MAP mean arterial blood pressure, TC total cholesterol, TG triglyceride, HDL high-density lipoprotein, LDL low-density lipoprotein, TyG index triglyceride–glucose index, hs-CRP high-sensitivity C-reactive protein, baPWV brachial-ankle pulse wave velocity; amean ± standard deviation, and the variables were tested by one-way analysis of variance for linear trend; bthe variables were tested by chi-square test for linear trend; cmedian (interquartile range), and the variables were tested by Kruskal–Wallis test