Table 1.
Baseline characteristics according to tertiles of the TyG index
| Total (n = 2792) | T1 (n = 931) | T2 (n = 941) | T3 (n = 920) | P-value | |
|---|---|---|---|---|---|
| Age (years) | 66 ± 10 | 68 ± 10 | 66 ± 10 | 63 ± 11 | < 0.01 |
| Male (n, %) | 1927 (69.02%) | 650 (69.82%) | 643 (68.33%) | 634 (68.91%) | < 0.01 |
| SBP (mmHg) | 136 ± 18 | 135 ± 18 | 136 ± 18 | 136 ± 19 | 0.11 |
| DBP (mmHg) | 77 ± 12 | 76 ± 12 | 77 ± 12 | 77 ± 12 | 0.03 |
| FPG (mmol/l) | 6.36 ± 2.22 | 5.29 ± 0.93 | 6.01 ± 1.40 | 7.81 ± 2.94 | < 0.01 |
| BMI (Kg/m2) | 25.71 ± 3.34 | 24.74 ± 3.23 | 25.94 ± 3.11 | 26.45 ± 3.43 | < 0.01 |
| HDL-C (mg/dL) | 1.04 ± 0.25 | 1.15 ± 0.27 | 1.03 ± 0.23 | 0.94 ± 0.21 | < 0.01 |
| LDL-C (mg/dL) | 2.12 ± 0.80 | 1.89 ± 0.71 | 2.12 ± 0.74 | 2.36 ± 0.88 | < 0.01 |
| TC (mg/dL) | 3.72 ± 0.93 | 3.45 ± 0.80 | 3.65 ± 0.84 | 4.07 ± 1.03 | < 0.01 |
| HbA1c (%) | 6.59 ± 1.23 | 6.17 ± 0.87 | 6.45 ± 1.06 | 7.16 ± 1.45 | < 0.01 |
| eGFR (ml/min) | 85.97 ± 17.08 | 86.24 ± 15.31 | 85.03 ± 16.33 | 86.65 ± 19.34 | 0.12 |
| Smoking (n, %) | 1299 (46.53%) | 406 (43.61%) | 432 (45.91%) | 461 (50.11%) | 0.02 |
| Drinking (n, %) | 1771 (63.43%) | 584 (62.73%) | 588 (62.49%) | 599 (65.11%) | 0.43 |
| Hypertension (n, %) | 1949 (69.81%) | 595 (63.91%) | 674 (71.63%) | 680 (73.91%) | < 0.01 |
| Glucose metabolism state | |||||
| NGR (n, %) | 530 (18.98%) | 275 (29.54%) | 175 (18.60%) | 80 (8.70%) | < 0.01 |
| Pre-DM (n, %) | 1038 (37.17%) | 394 (42.32%) | 399 (42.40%) | 245 (26.63%) | < 0.01 |
| DM (n, %) | 1224 (43.84%) | 262 (28.14%) | 367 (39.00%) | 595 (64.67%) | < 0.01 |
| Medications | |||||
| Antiplatelets (n, %) | 2643 (94.66%) | 883 (94.84%) | 883 (93.84%) | 877 (95.33%) | 0.34 |
| Antihypertensive drugs (n, %) | 2317 (82.99%) | 728 (78.20%) | 795 (84.48%) | 794 (86.30%) | < 0.01 |
| Antilipidemic drugs (n, %) | 2629 (94.16%) | 877 (94.20%) | 878 (93.30%) | 874 (95.0%) | 0.30 |
| Multi-vessel CAD (n, %) | 2159 (77.33%) | 688 (73.90%) | 736 (78.21%) | 735 (79.89%) | < 0.01 |
TyG triglyceride–glucose, SBP systolic blood pressure, DBP diastolic blood pressure, FPG fasting plasma glucose, BMI body mass index, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, TC total cholesterol, HbA1c glycated hemoglobin A1c, eGFR estimated glomerular filtration rate, NGR normoglycemia, Pre-DM pre-diabetes mellitus, DM diabetes mellitus, CAD coronary artery disease