Table 1 Baseline characteristics of individuals classified by quartiles of the cumulative average TyG-BMI
Characteristics | Overall | Quartiles of the cumulative average TyG-BMI | ||||
|---|---|---|---|---|---|---|
Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | P-value | ||
n | 5418 | 1355 | 1354 | 1354 | 1355 | |
Gender (Female) | 2,904 (53.6%) | 556 (41.0%) | 693 (51.2%) | 777 (57.4%) | 878 (64.8%) | < 0.001 |
Age, years | 59.6 ± 8.8 | 62.2 ± 9.5 | 59.9 ± 8.6 | 58.8 ± 8.4 | 57.7 ± 8.0 | < 0.001 |
Residence (Urban) | 747 (13.8%) | 120 (8.9%) | 158 (11.7%) | 230 (17.0%) | 239 (17.6%) | < 0.001 |
Education level | < 0.001 | |||||
Elementary school or below | 3,833 (70.7%) | 1,026 (75.7%) | 978 (72.2%) | 918 (67.8%) | 911 (67.2%) | |
Middle school | 1,454 (26.8%) | 307 (22.7%) | 346 (25.6%) | 393 (29.0%) | 408 (30.1%) | |
College or above | 131 (2.4%) | 22 (1.6%) | 30 (2.2%) | 43 (3.2%) | 36 (2.7%) | |
Current married | 4,838 (89.3%) | 1,165 (86.0%) | 1,194 (88.2%) | 1,237 (91.4%) | 1,242 (91.7%) | < 0.001 |
SBP, mmHg | 129.9 ± 25.0 | 124.9 ± 20.7 | 127.5 ± 24.6 | 130.4 ± 22.2 | 136.9 ± 30.0 | < 0.001 |
DBP, mmHg | 75.5 ± 12.1 | 71.9 ± 11.4 | 73.8 ± 11.8 | 76.4 ± 11.6 | 79.8 ± 11.9 | < 0.001 |
BMI, kg/m2 | 23.4 ± 3.4 | 19.6 ± 1.6 | 22.1 ± 1.4 | 24.2 ± 1.6 | 27.5 ± 2.4 | < 0.001 |
Smoking status | < 0.001 | |||||
Never | 3,314 (61.2%) | 656 (48.4%) | 804 (59.4%) | 887 (65.5%) | 967 (71.4%) | |
Former | 449 (8.3%) | 110 (8.1%) | 103 (7.6%) | 121 (8.9%) | 115 (8.5%) | |
Current | 1,655 (30.5%) | 589 (43.5%) | 447 (33.0%) | 346 (25.6%) | 273 (20.1%) | |
Drinking status | < 0.001 | |||||
Never | 3,174 (58.6%) | 702 (51.8%) | 778 (57.5%) | 798 (58.9%) | 896 (66.1%) | |
Former | 310 (5.7%) | 87 (6.4%) | 68 (5.0%) | 83 (6.1%) | 72 (5.3%) | |
Current | 1,934 (35.7%) | 566 (41.8%) | 508 (37.5%) | 473 (34.9%) | 387 (28.6%) | |
Dyslipidemia | 414 (7.6%) | 34 (2.5%) | 60 (4.4%) | 118 (8.7%) | 202 (14.9%) | < 0.001 |
Hypertension | 2,034 (37.5%) | 336 (24.8%) | 420 (31.0%) | 548 (40.5%) | 730 (53.9%) | < 0.001 |
Diabetes | 819 (15.1%) | 108 (8.0%) | 152 (11.2%) | 200 (14.8%) | 359 (26.5%) | < 0.001 |
Liver disease | 189 (3.5%) | 54 (4.0%) | 40 (3.0%) | 54 (4.0%) | 41 (3.0%) | 0.261 |
Kidney disease | 303 (5.6%) | 82 (6.1%) | 82 (6.1%) | 65 (4.8%) | 74 (5.5%) | 0.433 |
Lipid-lowering treatment | 220 (4.1%) | 14 (1.0%) | 29 (2.1%) | 61 (4.5%) | 116 (8.6%) | < 0.001 |
Antihypertensive treatment | 855 (15.8%) | 86 (6.3%) | 139 (10.3%) | 231 (17.1%) | 399 (29.4%) | < 0.001 |
Hypoglycemic treatment | 255 (4.7%) | 31 (2.3%) | 40 (3.0%) | 61 (4.5%) | 123 (9.1%) | < 0.001 |
FBG, mg/dL | 109.4 ± 34.4 | 101.6 ± 21.8 | 105.5 ± 27.0 | 109.1 ± 34.6 | 121.3 ± 46.1 | < 0.001 |
HbA1c, % | 5.3 ± 0.8 | 5.1 ± 0.6 | 5.2 ± 0.7 | 5.2 ± 0.7 | 5.5 ± 1.0 | < 0.001 |
TG, mg/dL | 131.4 ± 102.6 | 84.4 ± 41.3 | 108.5 ± 75.2 | 134.3 ± 83.4 | 198.5 ± 143.4 | < 0.001 |
TC, mg/dL | 193.4 ± 37.7 | 184.7 ± 35.6 | 191.1 ± 36.4 | 195.0 ± 36.7 | 202.8 ± 39.8 | < 0.001 |
HDL-c, mg/dL | 51.5 ± 15.3 | 59.8 ± 16.4 | 54.0 ± 14.4 | 49.2 ± 12.8 | 42.8 ± 12.1 | < 0.001 |
LDL-c, mg/dL | 116.2 ± 34.6 | 109.7 ± 30.6 | 116.9 ± 32.7 | 119.2 ± 34.1 | 118.9 ± 39.5 | < 0.001 |
TyG | 8.7 ± 0.7 | 8.3 ± 0.5 | 8.5 ± 0.5 | 8.7 ± 0.6 | 9.2 ± 0.7 | < 0.001 |
Cumulative average TyG-BMI | 204.9 ± 35.7 | 162.2 ± 11.6 | 190.0 ± 6.8 | 214.0 ± 7.7 | 253.5 ± 19.1 | < 0.001 |