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Table 1 Baseline parameters of population (N = 201,298)

From: Association between triglyceride-glucose index and risk of incident diabetes: a secondary analysis based on a Chinese cohort study

TyG index Q1 (<7.93) Q2 (≥7.93 to <8.31) Q3 (≥8.31 to <8.73) Q4 (≥8.73) P-value
Participants 49,413 50,766 49,852 51,267  
Age (years, mean ± SD) 37.32 ± 9.93 40.48 ± 12.00 43.76 ± 13.26 46.61 ± 13.20 < 0.001
Sex, n (%).      < 0.001
 Male 16,016 (32.41) 24,391 (48.05) 30,683 (61.55) 38,146 (74.41)  
 Female 33,397 (67.59) 26,375 (51.95) 19,169 (38.45) 13,121 (25.59)  
BMI (kg/m2, mean ± SD) 21.26 ± 2.59 22.40 ± 2.95 23.71 ± 3.13 25.31 ± 3.11 < 0.001
SBP (mmHg, mean ± SD) 112.37 ± 14.02 116.50 ± 15.29 120.82 ± 16.07 125.62 ± 16.64 < 0.001
DBP (mmHg, mean ± SD) 69.98 ± 9.53 72.45 ± 10.09 75.10 ± 10.51 78.47 ± 10.92 < 0.001
FPG (mg/dL, mean ± SD) 83.49 ± 9.29 86.88 ± 9.40 89.61 ± 9.75 93.58 ± 10.48 < 0.001
TC (mg/dL, mean ± SD) 165.41 ± 28.64 175.71 ± 30.75 185.95 ± 32.89 198.45 ± 34.94 < 0.001
TG (mg/dL, mean ± SD) 51.00 ± 11.26 78.87 ± 12.03 113.51 ± 18.14 199.82 ± 58.97 < 0.001
LDL-C (mg/dL, mean ± SD) 79.28 ± 22.93 85.06 ± 27.52 90.81 ± 31.54 95.18 ± 34.56 < 0.001
HDL-C (mg/dL, mean ± SD) 53.17 ± 11.91 53.09 ± 11.82 53.08 ± 11.90 53.07 ± 11.79 0.769
ALT (IU/L, median (Q1-Q3) 13.90 (10.90–18.60) 16.00 (12.00–22.80) 19.05 (14.00–28.00) 25.40 (18.00–38.30) < 0.001
AST (IU/L, mean ± SD) 21.74 ± 6.05 22.25 ± 6.41 22.95 ± 6.75 24.25 ± 8.22 < 0.001
Scr (mg/dL, mean ± SD) 0.73 ± 0.15 0.77 ± 0.16 0.81 ± 0.16 0.84 ± 0.16 < 0.001
Smoker      < 0.001
 Now 1011 (2.05) 2096 (4.13) 3140 (6.30) 4824 (9.41)  
 Once 304 (0.62) 536 (1.06) 732 (1.47) 847 (1.65)  
 Never 10,591 (21.43) 11,372 (22.40) 10,978 (22.02) 10,556 (20.59)  
 Not recorded 37,507 (75.90) 36,762 (72.41) 35,002 (70.21) 35,040 (68.35)  
Drinker      < 0.001
 Now 108 (0.22) 225 (0.44) 329 (0.66) 581 (1.13)  
 Once 1180 (2.39) 1831 (3.61) 2357 (4.73) 3128 (6.10)  
 Never 10,618 (21.48) 11,948 (23.54) 12,164 (24.40) 12,518 (24.42)  
 Not recorded 37,507 (75.91) 36,762 (72.41) 35,002 (70.21) 35,040 (68.35)  
Family history of diabetes, n (%)      < 0.001
 No 48,526 (98.20) 49,708 (97.92) 48,804 (97.90) 50,158 (97.84)  
 Yes 887 (1.80) 1058 (2.08) 1048 (2.10) 1109 (2.16)  
  1. Values are presented as mean ± SD, median (Q1–Q3) or n (%)
  2. BMI Body-mass index, SBP Systolic blood pressure, DBP Diastolic blood pressure, FPG Fasting plasma glucose, TC Total cholesterol, TG Triglyceride, LDL-C Low-density lipoprotein cholesterol, HDL-C High-density lipoprotein cholesterol, ALT Alanine aminotransferase, AST Aspartate transaminase, Scr Serum creatinine