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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