Table 1.
Baseline characteristics of study participants stratified by triglyceride-glucose index quartiles.
| Q1 | Q2 | Q3 | Q4 | P -value | |
|---|---|---|---|---|---|
| (≤ 8.26) | (8.27–8.65) | (8.66–9.08) | (≥ 9.09) | ||
| N | 1955 | 1956 | 1955 | 1956 | |
| Age, years | 70.90 ± 5.47 | 71.11 ± 5.43 | 70.84 ± 5.15 | 70.51 ± 4.98 | 0.005 |
| Male, n (%) | 967 (49.5) | 789 (40.3) | 687 (35.1) | 730 (37.3) | <0.001 |
| Heart rate, bpm | 74.95 ± 11.69 | 75.74 ± 11.51 | 76.66 ± 11.72 | 78.72 ± 12.71 | <0.001 |
| SBP, mmHg | 140.87 ± 19.28 | 143.27 ± 19.03 | 145.70 ± 19.19 | 146.32 ± 19.34 | <0.001 |
| DBP, mmHg | 79.59 ± 11.26 | 80.41 ± 11.15 | 81.84 ± 11.15 | 82.44 ± 10.83 | <0.001 |
| Waist, cm | 80.86 ± 9.60 | 84.21 ± 9.51 | 86.80 ± 9.41 | 88.61 ± 8.73 | <0.001 |
| BMI, kg/m2 | 22.52 ± 3.45 | 23.63 ± 3.49 | 24.51 ± 3.38 | 25.19 ± 3.34 | <0.001 |
| Hypertension, n (%) | 1097 (56.2) | 1200 (61.4) | 1282 (65.6) | 1296 (66.5) | <0.001 |
| Diabetes, n (%) | 122 (6.2) | 241 (12.3) | 361 (18.5) | 841 (43.0) | <0.001 |
| Current smoker, n (%) | 265 (13.6) | 234 (12.0) | 192 (9.8) | 211 (10.8) | 0.002 |
| Drinking Daily, n (%) | 87 (4.5) | 69 (3.5) | 54 (2.8) | 65 (3.3) | 0.036 |
| Exercising Daily, n (%) | 1134 (58.0) | 1159 (59.3) | 1250 (63.9) | 1238 (63.3) | <0.001 |
| Fasting glucose, mmol/L | 4.51 [4.08, 4.95] | 4.84 [4.36, 5.37] | 5.03 [4.53, 5.68] | 5.89 [5.02, 7.30] | <0.001 |
| Baseline eGFR, mL/min/1.73 m2 | 83.34 [73.34, 90.14] | 81.67 [71.73, 89.46] | 82.09 [72.54, 89.96] | 82.15 [71.62, 89.79] | 0.013 |
| Total cholesterol, mmol/L | 5.07 [4.47, 5.78] | 5.38 [4.70, 6.11] | 5.58 [4.89, 6.34] | 5.67 [4.90, 6.54] | <0.001 |
| Triglyceride, mmol/L | 0.82 [0.69, 0.96] | 1.22 [1.07, 1.38] | 1.71 [1.50, 1.97] | 2.67 [2.14, 3.47] | <0.001 |
| Hypertensive treatment, n (%) | 323 (23.8) | 370 (30.4) | 394 (34.2) | 454 (42.4) | <0.001 |
| Glucose-lowering treatment, n (%) | 46 (3.3) | 87 (6.9) | 118 (9.9) | 282 (25.5) | <0.001 |
| TyG index | 7.96 ± 0.24 | 8.46 ± 0.11 | 8.85 ± 0.12 | 9.56 ± 0.44 | <0.001 |
SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index; eGFR: estimated glomerular filtration rate; TyG index, triglyceride-glucose index.