Table 1.
Baseline characteristics of the participants.
| Variable |
All participants (2,571) |
TyG index | P value | ||||
|---|---|---|---|---|---|---|---|
| Q1 (514) | Q2 (514) | Q3 (513) | Q4 (515) | Q5 (515) | |||
| Age | 79.68 (4.06) | 80.15 (4.39) | 79.73 (4.17) | 79.77 (4.04) | 79.39 (3.77) | 79.38 (3.85) | 0.013 |
| Gender | <0.001 | ||||||
| Male | 1,634 (63.6) | 379 (73.7) | 352 (68.5) | 314 (61.2) | 293 (56.9) | 296 (57.5) | |
| Female | 937 (36.4) | 135 (26.3) | 162 (31.5) | 199 (38.8) | 222 (43.1) | 219 (42.5) | |
| Bmi | 23.96 (3.18) | 22.73 (3.06) | 23.57 (3.28) | 23.89 (3.16) | 24.54 (2.97) | 25.08 (2.89) | <0.001 |
| Tyg index | 8.60 (0.51) | 7.90 (0.22) | 8.33 (0.08) | 8.59 (0.08) | 8.86 (0.08) | 9.33 (0.26) | <0.001 |
| Systolic blood pressure | 130.37 (12.18) | 128.73 (13.09) | 129.53 (12.34) | 130.31 (12.18) | 131.46 (11.70) | 131.80 (11.31) | <0.001 |
| Diastolic blood pressure | 76.29 (8.93) | 75.42 (8.66) | 75.59 (8.90) | 76.15 (9.04) | 77.34 (9.26) | 76.94 (8.63) | 0.001 |
| Fasting blood glucose | 5.14 (0.47) | 4.98 (0.46) | 5.08 (0.44) | 5.14 (0.46) | 5.22 (0.44) | 5.30 (0.47) | <0.001 |
| Total cholesterol | 5.01 (0.73) | 4.72 (0.70) | 4.91 (0.73) | 5.08 (0.73) | 5.11 (0.68) | 5.23 (0.71) | <0.001 |
| Triglyceride | 1.51 (0.83) | 0.70 (0.15) | 1.04 (0.13) | 1.33 (0.15) | 1.71 (0.21) | 2.79 (0.87) | <0.001 |
| High-density lipoprotein | 1.38 (0.24) | 1.44 (0.24) | 1.41 (0.24) | 1.40 (0.24) | 1.35 (0.23) | 1.30 (0.23) | <0.001 |
| Low-density lipoprotein | 2.90 (0.54) | 2.72 (0.51) | 2.87 (0.54) | 2.98 (0.55) | 2.99 (0.52) | 2.94 (0.55) | <0.001 |
| Alanine aminotransferase | 17.00 [13.30, 22.00] |
15.50 [12.33, 19.50] |
16.35 [13.20, 21.37] |
16.20 [13.00, 21.50] |
18.00 [14.00, 22.35] |
18.00 [15.00, 24.30] | <0.001 |
| Aspartate aminotransferase | 24.00 [21.00, 28.25] |
24.00 [21.00, 28.00] |
24.00 [21.00, 28.10] |
23.50 [20.70, 28.00] |
24.80 [21.00, 28.00] |
24.80 [21.50, 29.20] | 0.060 |
| Blood urea nitrogen | 5.08 (0.92) | 5.20 (0.90) | 5.06 (0.93) | 5.06 (0.91) | 5.01 (0.92) | 5.08 (0.91) | 0.016 |
| Creatinine clearance rate | 75.09 (11.89) | 76.08 (11.34) | 75.32 (11.63) | 74.71 (12.15) | 73.98 (12.20) | 75.37 (12.07) | 0.060 |
| Type 2 diabetes mellitus | 231 (9.0) | 33 (6.4) | 27 (5.3) | 44 (8.6) | 49 (9.5) | 78 (15.1) | |
| Smoking | 0.001 | ||||||
| Every day | 716 (27.8) | 176 (34.2) | 145 (28.2) | 146 (28.5) | 123 (23.9) | 126 (24.5) | |
| Occasionally | 119 (4.6) | 21 (4.1) | 34 (6.6) | 16 (3.1) | 23 (4.5) | 25 (4.9) | |
| None | 1,736 (67.5) | 317 (61.7) | 335 (65.2) | 351 (68.4) | 369 (71.7) | 364 (70.7) | |
| Drinking | 0.185 | ||||||
| Every week | 40 (1.6) | 4 (0.8) | 13 (2.5) | 10 (1.9) | 8 (1.6) | 5 (1.0) | |
| Occasionally | 291 (11.3) | 67 (13.0) | 60 (11.7) | 58 (11.3) | 46 (8.9) | 60 (11.7) | |
| None | 2,240 (87.1) | 443 (86.2) | 441 (85.8) | 445 (86.7) | 461 (89.5) | 450 (87.4) | |