Research Article

Triglyceride-Glucose Index for the Diagnosis of Metabolic Syndrome: A Cross-Sectional Study of 298,652 Individuals Receiving a Health Check-Up in China

Table 1

Comparison of the demographic characteristics and biochemical indices among the TyG-index subgroups.

VariablesTotalQ1 (TyG <8.30)Q2 (8.30≤ TyG <8.83)Q3 (TyG ≥8.83)χ2

Sex22142.40<0.001
 Female125,025 (41.86)58,576 (58.83)40,638 (40.82)25,811 (25.93)
 Male173,627 (58.14)40,986 (41.17)58,911 (59.18)73,730 (74.07)
Age (years)13289.19<0.001
 ≤4547.08 ± 12.9461,491 (61.76)43,082 (43.28)34,123 (34.28)
 46–6934,585 (34.74)50,199 (50.43)58,795 (59.07)
 >703486 (3.50)6268 (6.30)6623 (6.65)
BMI (kg/m2)36285.17<0.001
 <2523.80 ± 3.2485,072 (85.45)67,420 (67.73)44,813 (45.02)
 ≥2514,490 (14.55)32,129 (32.27)54,728 (54.98)
Drinking9507.51<0.001
 0198,151 (66.35)78,283 (78.63)66,750 (67.05)53,118 (53.36)
 128,633 (9.59)4814 (4.84)8736 (8.78)15,083 (15.15)
 271,868 (24.06)16,465 (16.54)24,063 (24.17)31,340 (31.48)
Smoking5481.96<0.001
 0217,146 (72.71)82,391 (82.75)72,850 (73.18)61,905 (62.19)
 164,904 (21.73)12,845 (12.90)20,985 (21.08)31,074 (31.22)
 216,602 (5.56)4326 (4.35)5714 (5.74)6562 (6.59)
Hypertension14195.33<0.001
 No243,611 (81.57)91,073 (91.47)82,095 (82.47)70,443 (70.77)
 Yes55,041 (18.43)8489 (8.53)17,454 (17.53)29,098 (29.23)
Hyperlipidemia25047.02<0.001
 No272,388 (91.21)98,010 (98.44)96,387 (96.82)77,991 (78.35)
 Yes26,264 (8.79)1552 (1.56)3162 (3.18)21,550 (21.65)
Hyperglycemia24470.19<0.001
 No263,745 (88.31)97,326 (97.75)91,537 (91.95)74,882 (75.23)
 Yes34,907 (11.69)2236 (2.25)8012 (8.05)24,659 (24.77)
MS14138.52<0.001
 No285,967 (95.75)99,305 (99.74)98,077 (98.52)88,585 (88.99)
 Yes12,685 (4.25)257 (0.26)1472 (1.48)10,956 (11.01)
eGFR441.35<0.001
 <6058,854 (19.71)20,884 (20.98)20,819 (20.91)17,151 (17.23)
 ≥60239,798 (80.29)78,678 (79.02)78,730 (79.09)82,390 (82.77)
 Total298,65299,56299,54999,541

For drinking, 0 = never drinking, 1 = occasional drinking, and 2 = frequent drinking. For smoking, 0 = never smoking, 1 = occasional smoking, and 2 = frequent smoking. TyG, triglyceride-glucose; BMI, body mass index; eGFR, estimated glomerular filtration rate; MS, metabolic syndrome.