Table 1.
Baseline characteristics according to the quartiles of TyG variability.
| Total | Q1 (0–0.17) | Q2 (0.17–0.27) | Q3 (0.27–0.42) | Q4 (0.42–3.03) | P | |
|---|---|---|---|---|---|---|
| Demographic characteristics | ||||||
| N | 27,520 | 6,880 | 6,880 | 6,880 | 6,880 | |
| Age, years | 66.8 (5.2) | 67.2 (5.3) | 66.9 (5.2) | 66.7 (5.2) | 66.2 (4.9) | <0.001 |
| Female | 14,232 (52%) | 3,450 (50%) | 3,520 (51%) | 3,576 (52%) | 3,686 (54%) | 0.14 |
| Waist, cm | 83.5 (8.8) | 83.3 (9.0) | 83.4 (8.7) | 83.5 (8.9) | 83.8 (8.6) | 0.006 |
| BMI, kg/m2 | 24.4 (3.4) | 24.3 (3.4) | 24.3 (3.3) | 24.4 (3.5) | 24.6 (3.4) | <0.001 |
| Smoking statue | 0.14 | |||||
| Ever smoking | 6,209 (23%) | 1,586 (23%) | 1,599 (23%) | 1,518 (22%) | 1,506 (22%) | |
| Never | 21,311 (77%) | 5,294 (77%) | 5,281 (77%) | 5,362 (78%) | 5,374 (78%) | |
| Exercise status | 0.04 | |||||
| Not active | 15,706 (57%) | 3,842 (56%) | 3,928 (57%) | 3,961 (58%) | 3,975 (58%) | |
| Somewhat active | 2,724 (10%) | 672 (10%) | 665 (10%) | 667 (10%) | 720 (10%) | |
| Regularly active | 9,090 (33%) | 2,366 (34%) | 2,287 (33%) | 2,252 (33%) | 2,185 (32%) | |
| Clinical characteristics | ||||||
| Diabetes | 3,399 (12%) | 616 (9%) | 687 (10%) | 871 (13%) | 1,225 (18%) | <0.001 |
| Hypertension | 12,893 (47%) | 3,044 (44%) | 3,160 (46%) | 3,226 (47%) | 3,463 (50%) | <0.001 |
| SBP, mmHg | 139.6 (19.0) | 139.1 (19.1) | 139.3 (18.9) | 139.7 (18.8) | 140.3 (19.0) | 0.002 |
| DBP, mmHg | 80.6 (10.5) | 80.3 (10.7) | 80.4 (10.6) | 80.6 (10.3) | 80.9 (10.3) | 0.005 |
| LDL-C, mmol/L | 2.8 (0.9) | 2.8 (0.9) | 2.8 (0.9) | 2.9 (0.9) | 2.8 (0.9) | 0.024 |
| HDL-C, mmol/L | 1.47 (0.5) | 1.51 (0.6) | 1.48 (0.5) | 1.48 (0.5) | 1.43 (0.5) | <0.001 |
| Mean TyG (mg/dL)2 | 8.74 (0.5) | 8.64 (0.5) | 8.68 (0.5) | 8.74 (0.5) | 8.92 (0.6) | <0.001 |
Data are presented as mean (SD) for continuous variables or n (%) for categorical variables. Q, quartile; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol; TyG, triglyceride-glucose.