Table 1 Baseline clinical characteristics of patients according to tertiles of triglyceride-glucose index
Characteristic | Total N = 959 | Tertile 1, ≤ 8.77 N = 320 | Tertile 2, 8.77–9.40 N = 319 | Tertile 3, > 9.40 N = 320 | P value |
|---|---|---|---|---|---|
Age, mean (SD), years | 61.8 (10.5) | 62.3 (10.9) | 60.8 (10.5) | 62.4 (9.9) | 0.080 |
Male, No. (%) | 715 (74.6) | 246 (76.9) | 235 (73.7) | 234 (73.1) | 0.500 |
SBP, mean (SD), mmHg | 141.6 (25.0) | 142.6 (24.7) | 142.6 (24.7) | 139.6 (25.5) | 0.206 |
DBP, mean (SD), mmHg | 78.7 (13.4) | 79.6 (13.4) | 79.4 (13.6) | 77.2 (13.1) | 0.046 |
Heart rate, mean (SD), beats/min | 80.5 (14.7) | 78.8 (13.9) | 81.0 (15.7) | 81.7 (14.3) | 0.034 |
Medical history and risk factors, No. (%) | Â | Â | Â | Â | |
 Hypertension | 890 (92.8) | 288 (90.0) | 303 (95.0) | 299 (93.4) | 0.044 |
 Diabetes mellitus | 509 (53.1) | 116 (36.2) | 165 (51.7) | 228 (71.2) |  < 0.001 |
 Current smoker | 181 (18.9) | 65 (20.3) | 56 (17.6) | 60 (18.8) | 0.671 |
 Atrial fibrillation | 81 (8.4) | 26 (8.1) | 27 (8.5) | 28 (8.8) | 0.960 |
 Cerebrovascular disease | 184 (19.2) | 61 (19.1) | 59 (18.5) | 64 (20.0) | 0.888 |
 Valvular disease | 31 (3.2) | 13 (4.1) | 12 (3.8) | 6 (1.9) | 0.237 |
 Peripheral arterial disease | 95 (9.9) | 29 (9.1) | 29 (9.1) | 37 (11.6) | 0.478 |
Cause of ESRD, No. (%) |  |  |  |  |  < 0.001 |
 Diabetes mellitus | 304 (31.7) | 67 (20.9) | 100 (31.3) | 137 (42.8) |  |
 Hypertension | 123 (12.8) | 55 (17.2) | 39 (12.2) | 29 (9.1) |  |
 Glomerulonephritis | 230 (24.0) | 102 (31.9) | 68 (21.3) | 60 (18.8) |  |
 Other/unknown | 302 (31.5) | 96 (30.0) | 112 (35.1) | 94 (29.4) |  |
Insulin therapy, No. (%) | 322 (33.6) | 65 (20.3) | 102 (32.0) | 155 (48.4) |  < 0.001 |
Dialysis modality, No. (%) | Â | Â | Â | Â | 0.065 |
 Hemodialysis | 887 (92.5) | 300 (93.8) | 300 (94.0) | 287 (89.7) |  |
 Peritoneal dialysis | 72 (7.5) | 20 (6.2) | 19 (6.0) | 33 (10.3) |  |
Vintage, years | Â | Â | Â | Â | 0.624 |
 < 1 | 199 (20.8) | 69 (21.6) | 62 (19.4) | 68 (21.2) |  |
 1–5 | 444 (46.3) | 141 (44.1) | 147 (46.1) | 156 (48.8) |  |
 5–10 | 248 (25.9) | 83 (25.9) | 91 (28.5) | 74 (23.1) |  |
 ≥ 10 | 68 (7.1) | 27 (8.4) | 19 (6.0) | 22 (6.9) |  |
Index presentation, No. (%) | Â | Â | Â | Â | 0.292 |
 AMI | 564 (58.8) | 177 (55.3) | 192 (60.2) | 195 (60.9) |  |
 Non-AMI | 395 (41.2) | 143 (44.7) | 127 (39.8) | 125 (39.1) |  |
Hemoglobin, g/L | 105.5 (19.8) | 104.7 (19.0) | 106.0 (19.2) | 105.7 (21.2) | 0.668 |
Glucose, mmol/L | 6.4 [4.8, 9.3] | 4.7 [4.2, 5.7] | 6.3 [5.0, 8.0] | 10.0 [7.3, 13.5] |  < 0.001 |
Serum creatinine, mg/dl | 8.7 [6.7, 10.9] | 8.5 [6.9, 10.5] | 9.2 [7.2, 11.7] | 8.0 [6.2, 10.5] | 0.001 |
TG, mmol/L | 1.6 [1.1, 2.3] | 1.0 [0.8, 1.3] | 1.7 [1.4, 2.1] | 2.5 [1.9, 3.4] |  < 0.001 |
TC, mmol/L | 3.7 [3.1, 4.5] | 3.5 [2.9, 4.1] | 3.6 [3.2, 4.4] | 4.1 [3.2, 4.9] |  < 0.001 |
HDL-C, mmol/L | 0.9 [0.7, 1.1] | 1.0 [0.8, 1.2] | 0.8 [0.7, 1.1] | 0.8 [0.7, 1.0] |  < 0.001 |
LDL-C, mmol/L | 2.2 [1.7, 2.8] | 2.1 [1.6, 2.5] | 2.2 [1.7, 2.8] | 2.3 [1.7, 3.0] | 0.001 |
TyG index | 9.1 [8.6, 9.6] | 8.3 [8.1, 8.6] | 9.1 [8.9, 9.2] | 9.8 [9.6, 10.1] |  < 0.001 |
Procedure characteristic, No. (%) | Â | Â | Â | Â | Â |
 Radial access | 740 (77.2) | 241 (75.3) | 249 (78.1) | 250 (78.1) | 0.627 |
 Extent of disease |  |  |  |  |  |
  Any left main disease | 111 (11.6) | 32 (10.0) | 44 (13.8) | 35 (10.9) | 0.296 |
  2-vessel disease | 263 (27.4) | 85 (26.6) | 82 (25.7) | 96 (30.0) | 0.436 |
  3-vessel disease | 544 (56.7) | 169 (52.8) | 184 (57.7) | 191 (59.7) | 0.196 |
 Moderate or severe calcification | 432 (45.0) | 141 (44.1) | 149 (46.7) | 142 (44.4) | 0.764 |
 PCI treatment | 676 (70.5) | 218 (68.1) | 225 (70.5) | 233 (72.8) | 0.429 |
Discharge medications, No. (%) | Â | Â | Â | Â | Â |
 Dual antiplatelet therapy | 836 (87.2) | 277 (86.6) | 286 (89.7) | 273 (85.3) | 0.240 |
 ACE inhibitor or ARB | 441 (46.0) | 160 (50.0) | 142 (44.5) | 139 (43.4) | 0.203 |
 Beta-blocker | 775 (80.8) | 248 (77.5) | 261 (81.8) | 266 (83.1) | 0.167 |
 Calcium-channel blocker | 620 (64.7) | 220 (68.8) | 206 (64.6) | 194 (60.6) | 0.099 |
 Statin | 899 (93.7) | 296 (92.5) | 302 (94.7) | 301 (94.1) | 0.505 |