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

From: Triglyceride–glucose index is associated with the risk of myocardial infarction: an 11-year prospective study in the Kailuan cohort

Characteristics Overall Quartiles of TyG index P value
Q1 Q2 Q3 Q4
No. of participants 98,849 24,712 24,716 24,708 24,713  
TyG index 8.58 (8.18–9.06) 7.91 (7.70–8.06) 8.39 (8.29–8.48) 8.79 (8.68–8.91) 9.46 (9.23–9.82)  < 0.0001
Age, years 51.81 (43.60–59.23) 50.77 (41.81–58.91) 51.82 (43.60–59.18) 52.36 (44.22–59.70) 52.16 (44.44–58.96)  < 0.0001
Men, n (%) 78,835 (79.75) 18,283 (73.98) 19,634 (79.44) 20,104 (81.37) 20,814 (84.22)  < 0.0001
High school or above, n (%) 19,189 (20.09) 5781 (24.32) 4586 (19.12) 4561 (19.12) 4261 (17.84)  < 0.0001
Income > 800 RMB/month, n (%) 13,659 (14.31) 3699 (15.57) 3223 (13.45) 3357 (14.08) 3380 (14.16)  < 0.0001
Body mass index, kg/m2 24.84 (22.60–27.22) 23.14 (21.11–25.34) 24.44(22.39–26.64) 25.43 (23.4–27.67) 26.30 (24.22–28.41)  < 0.0001
Systolic blood pressure, mm Hg 130.00 (119.30–141.30) 120.00 (110.00–136.00) 129.30 (117.30–140.00) 130.00 (120.00–145.00) 132.00 (120.00–150.00)  < 0.0001
Diastolic blood pressure, mm Hg 80.00 (78.70–90.00) 80.00 (70.70–85.00) 80.00 (77.30–90.00) 81.00 (79.30–90.00) 85.00 (80.00–92.00)  < 0.0001
Current smoker, n (%) 33,064 (34.34) 8014 (33.50) 7750 (32.10) 8284 (34.39) 9016 (37.37)  < 0.0001
Current alcohol use, n (%) 35,945 (37.32) 8941 (37.36) 8415 (34.85) 8921 (37.02) 9668 (40.07)  < 0.0001
Active physical activity, n (%) 87,005 (91.28) 21,660 (91.33) 21,964 (91.77) 21,641 (90.85) 21,740 (91.19) 0.0046
Diabetes Mellitus, n (%) 3033 (3.07) 182 (0.74) 348 (1.41) 667 (2.70) 1836 (7.43)  < 0.0001
Hypertension, n (%) 12,300 (12.44) 1899 (7.685) 2549 (10.31) 3479 (14.08) 4373 (17.70)  < 0.0001
Dyslipidemia, n (%) 5757 (5.82) 751 (3.04) 1044 (4.22) 1613 (6.53) 2349 (9.50)  < 0.0001
Antihypertensive drugs, n (%) 2311 (2.34) 137 (0.55) 246 (1.00) 513 (2.08) 1415 (5.73)  < 0.0001
Antidiabetic drugs, n (%) 845 (0.85) 97 (0.39) 156 (0.63) 201 (0.81) 391 (1.58)  < 0.0001
Lipid-lowering drugs, n (%) 10,670 (10.79) 1647 (6.66) 2188 (8.85) 3050 (12.34) 3785 (15.32)  < 0.0001
Fasting plasma glucose, mmol/L 5.11 (4.66–5.71) 4.78 (4.37–5.20) 5.01 (4.62–5.46) 5.24 (4.80–5.82) 5.67 (5.02–6.90)  < 0.0001
Total cholesterol, mmol/L 4.92 (4.28–5.59) 4.59 (4.03–5.20) 4.89 (4.29–5.46) 5.07 (4.47–5.71) 5.19 (4.44–5.94)  < 0.0001
Triglycerides, mmol/L 1.27 (0.89–1.93) 0.70 (0.58–0.82) 1.10 (0.98–1.22) 1.56 (1.36–1.79) 2.76 (2.18–3.90)  < 0.0001
HDL-C, mmol/L 1.50 (1.28–1.76) 1.54 (1.30–1.80) 1.52 (1.31–1.77) 1.48 (1.27–1.74) 1.47 (1.25–1.74)  < 0.0001
LDL-C, mmol/L 2.33 (1.82–2.83) 2.13 (1.60–2.72) 2.37 (1.91–2.82) 2.41 (1.97–2.90) 2.38 (1.82–2.88)  < 0.0001
Hs-CRP, mg/dL 0.80 (0.30–2.20) 0.60 (0.21–1.90) 0.73 (0.30–2.00) 0.90 (0.34–2.20) 1.04 (0.40–2.66)  < 0.0001
  1. LDL-C low-density lipoprotein cholesterol, HDL-C high-density lipoprotein cholesterol, hs-CRP high-sensitivity C-reactive protein, TyG triglyceride glucose