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Table 1 Baseline characteristics of the study population according to the TyG quartiles

From: Association of triglyceride–glucose index and traditional risk factors with cardiovascular disease among non-diabetic population: a 10-year prospective cohort study

Variables

TyG index

p-value

Total

(n = 6095)

Quartile 1

Quartile 2

Quartile 3

Quartile 4

(n = 1514)

(n = 1514)

(n = 1543)

(n = 1524)

TyG index

 ≤ 7.92

 > 7.92 to ≤ 8.32

 > 8.32 to ≤ 8.76

 > 8.76

  

Age(years)

45.87 ± 9.79

48.18 ± 9.97

49.98 ± 9.77

50.70 ± 9.59

 < 0.001

48.69 ± 9.95

Gender, n (%)

 

 Male

707 (46.7)

732 (48.3)

737 (47.8)

814 (53.4)

0.001

2990 (49.1)

 Female

807 (53.3)

782 (51.7)

806 (52.2)

710 (46.6)

3105 (50.9)

 BMI (kg/m2)

22.87 ± 3.22

23.93 ± 3.37

25.11 ± 3.21

26.13 ± 3.41

 < 0.001

24.51 ± 3.52

 WHR

0.86 ± 0.05

0.87 ± 0.05

0.87 ± 0.04

0.88 ± 0.05

 < 0.001

0.87 ± 0.05

 SBP (mm Hg)

132.71 ± 20.80

135.96 ± 20.61

140.13 ± 22.67

142.64 ± 21.68

 < 0.001

137.88 ± 21.79

 DBP (mm Hg)

80.40 ± 12.43

82.93 ± 12.42

85.43 ± 12.97

87.68 ± 12.41

 < 0.001

84.12 ± 12.85

Tobacco use, n (%)

 

 Never

1174 (77.5)

1158 (76.5)

1188 (77.0)

1159 (76.0)

0.537

4679 (76.8)

 Former

38 (2.5)

33 (2.2)

49 (3.2)

38 (2.5)

158 (2.6)

 Current

302 (19.9)

323 (21.3)

306 (19.8)

327 (21.5)

1258 (20.6)

Alcohol use, n (%)

 

 Never

1218 (80.4)

1199 (79.2)

1215 (78.7)

1130 (74.1)

0.001

4762 (78.1)

 Former

17 (1.1)

22 (1.5)

29 (1.9)

29 (1.9)

97 (1.6)

 Current

279 (18.4)

293 (19.4)

299 (19.4)

365 (24.0)

1236 (20.3)

 Low physical activity

245 (16.2)

234 (15.5)

239 (15.5)

258 (16.9)

0.649

976 (16.0)

Education, n (%)

 

 Primary or less

541 (35.7)

558 (36.9)

581 (37.7)

561 (36.8)

0.001

2241 (36.8)

 Secondary

899 (59.4)

868 (57.3)

834 (54.1)

842 (55.2)

3443 (56.5)

 Trade, college or university

74 (4.9)

88 (5.8)

128 (8.3)

121 (7.9)

411 (6.7)

 Hypertension, n (%)

511 (33.8)

658 (43.5)

793 (51.4)

870 (57.1)

 < 0.001

2832 (46.5)

 Obesity, n (%)

32 (2.1)

58 (3.8)

102 (6.6)

180 (11.8)

 < 0.001

372 (6.1)

 FPG (mmol/L)

4.05 ± 0.67

4.37 ± 0.68

4.62 ± 0.72

4.89 ± 0.76

 < 0.001

4.48 ± 0.77

 TC (mmol/L)

4.09 ± 0.77

4.51 ± 0.80

4.78 ± 0.84

5.09 ± 1.01

 < 0.001

4.62 ± 0.94

 TG (mmol/L)

0.65 ± 0.15

1.00 ± 0.19

1.41 ± 0.27

2.91 ± 1.76

 < 0.001

1.49 ± 1.24

 LDL-C (mmol/L)

2.52 ± 0.64

2.76 ± 0.66

2.85 ± 0.68

2.61 ± 0.92

 < 0.001

2.69 ± 0.74

 HDL-C (mmol/L)

1.26 ± 0.36

1.28 ± 0.30

1.29 ± 0.28

1.25 ± 0.30

 < 0.001

1.27 ± 0.31

 Antihypertensive drugs,n (%)

88 (5.8)

121 (8.0)

177 (11.5)

223 (14.6)

 < 0.001

609 (10.0)

 Antilipemic drugs, n (%)

26 (1.7)

28 (1.9)

39 (2.5)

39 (2.6)

0.239

132 (2.2)

FAT, n (%)

 

 Tertile 1

533 (35.2)

516 (34.1)

484 (31.4)

501 (32.9)

0.003

2034 (33.4)

 Tertile 2

521 (34.4)

500 (33.0)

545 (35.3)

462 (30.3)

2028 (33.3)

 Tertile 3

460 (30.4)

498 (32.9)

514 (33.3)

561 (36.8)

2033 (33.4)

Carbohydrates, n (%)

 

 Tertile 1

434 (28.7)

490 (32.4)

514 (33.3)

594 (39.0)

 < 0.001

2032 (33.3)

 Tertile 2

539 (35.6)

521 (34.4)

518 (33.6)

454 (29.8)

2032 (33.3)

 Tertile 3

541 (35.7)

503 (33.2)

511 (33.1)

476 (31.2)

2031 (33.3)

 CVD

62 (4.1)

83 (5.5)

81 (5.2)

131 (8.6)

 < 0.001

357 (5.9)

 CHD

33 (2.2)

51 (3.4)

51 (3.3)

89 (5.8)

 < 0.001

224 (3.7)

 Stroke

29 (1.9)

38 (2.5)

36 (2.3)

48 (3.1)

0.174

151 (2.5)

  1. Continuous variables were given as mean ± SD and categorical variables were given by frequency and percentage as n (%)
  2. TyG index Triglyceride–glucose index; BMI body mass index; WHR Waist hip ratio; SBP Systolic blood pressure; DBP Diastolic blood pressure; FPG fasting plasma glucose; TC total cholesterol; TG triglyceride; LDL-C low-density lipoprotein-cholesterol; HDL-C high-density lipoprotein-cholesterol; CVD Cardiovascular disease; CHD Coronary heart disease
  3. p values in bold are < 0.05