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

From: High triglyceride-glucose index in young adulthood is associated with incident cardiovascular disease and mortality in later life: insight from the CARDIA study

 

Total (n = 4,574)

Quartile (n = 1,144)

Quartile 2 (n = 1,143)

Quartile 3 (n = 1,143)

Quartile 4 (n = 1,144)

p value

TyG index

7.87 ± 0.52

7.26 ± 0.21

7.68 ± 0.09

7.99 ± 0.09

8.54 ± 0.38

 < 0.001

Age, years

24.72 ± 3.62

24.44 ± 3.67

24.59 ± 3.64

24.61 ± 3.57

25.26 ± 3.55

 < 0.001

Sex

 Male

2093 (45.8)

400 (35.0)

478 (41.8)

533 (46.6)

682 (59.6)

 < 0.001

 Female

2481 (54.2)

744 (65.0)

665 (58.2)

610 (53.4)

462 (40.4)

 

Race

 Black

2344 (51.2)

689 (60.2)

621 (54.3)

564 (49.3)

470 (41.1)

 < 0.001

 White

2230 (48.8)

455 (39.8)

522 (45.7)

579 (50.7)

674 (58.9)

 

 SBP, mmHg

110.33 ± 10.90

107.94 ± 10.52

109.03 ± 10.07

110.92 ± 11.08

113.44 ± 11.08

 < 0.001

 DBP, mmHg

68.55 ± 9.58

67.21 ± 8.56

67.59 ± 9.42

69.10 ± 9.70

70.31 ± 10.25

 < 0.001

 BMI, kg/m2

24.46 ± 4.82

23.36 ± 4.19

23.78 ± 4.42

24.55 ± 4.91

26.14 ± 5.20

 < 0.001

 WC, cm

77.59 ± 10.82

73.64 ± 8.63

75.63 ± 9.69

77.83 ± 10.54

83.27 ± 11.71

 < 0.001

 Total Cholesterol, mg/dL

176.56 ± 33.55

163.91 ± 28.96

171.32 ± 30.00

179.89 ± 33.34

191.11 ± 35.29

 < 0.001

 HDL-c, mg/dL

53.06 ± 13.12

58.18 ± 12.49

55.72 ± 12.93

52.43 ± 12.38

45.92 ± 11.29

 < 0.001

 LDL-c, mg/dL

108.91 ± 31.32

98.24 ± 26.49

104.78 ± 28.34

113.01 ± 32.40

119.62 ± 33.30

 < 0.001

 TG, mg/dL

72.97 ± 48.37

37.48 ± 7.54

54.18 ± 6.93

72.27 ± 9.81

127.94 ± 67.24

 < 0.001

 FPG, mg/dL

82.43 ± 14.94

78.12 ± 7.65

80.90 ± 7.28

82.67 ± 9.35

88.03 ± 25.33

 < 0.001

 Drinking

3953 (86.4)

968 (84.6)

980 (85.7)

995 (87.1)

1010 (88.3)

0.06

 Smoking

1974 (43.2)

405 (35.4)

504 (44.1)

492 (43)

573 (50.1)

 < 0.001

 Educational level, years

14.83 ± 2.77

14.84 ± 2.07

14.90 ± 3.27

14.94 ± 3.29

14.64 ± 2.18

0.054

 Hypertension

407 (8.9)

88 (7.7)

71 (6.2)

102 (8.9)

146 (12.8)

 < 0.001

 Antihypertensive medication

101 (2.2)

15 (1.3)

19 (1.7)

24 (2.1)

43 (3.8)

 < 0.001

 Diabetes

49 (1.1)

6 (0.5)

5 (0.4)

12 (1.0)

26 (2.3)

 < 0.001

 Family history of diabetes

634 (13.9)

129 (11.3)

149 (13.0)

179 (15.7)

177 (15.5)

0.005

 Total Physical activity, EU

421.43 ± 302.52

413.15 ± 305.23

416.40 ± 293.38

426.52 ± 305.82

429.64 ± 305.54

0.505

  1. Data are shown as mean ± SD or n (%). Baseline characteristics of the 4,574 eligible participants from the CARDIA study, stratified by baseline triglyceride glucose index. There were significant between-group differences in most covariates considered
  2. TyG triglyceride-glucose, BMI body mass index, WC waist circumference, SBP systolic blood pressure, DBP diastolic blood pressure, FPG fasting plasma glucose, HDL-c high-density lipoprotein cholesterol, LDL-c low-density lipoprotein cholesterol, TG triglyceride, EU exercise unit