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Table 1 Baseline characteristics of study participants across GGT quartiles

From: Elevated gamma-glutamyl transferase is associated with subclinical inflammation independent of cardiometabolic risk factors in an asymptomatic population: a cross-sectional study

Characteristics GGT-Q1 (0–22 IU/L) GGT-Q2 (22–31 IU/L) GGT-Q3 (31–45 IU/L) GGT-Q4 (>45 IU/L) p-value
  N = 1,465 N = 1,383 N = 1,254 N = 1,344  
Male (%) 46 80 89 95 <0.001
Mean age, y (±SD) 41(9) 43(10) 45(10) 45(9) <0.001
Mean BMI, kg/m2 (±SD) 24(3) 26(4) 27(4) 28(4) <0.001
Mean waist circumference, cm (±SD) 83(11) 90(11) 95(11) 98(10) <0.001
Obesity, BMI ≥ 30 kg/m2 (%) 9 18 31 35 <0.001
Mean SBP, mmHg (±SD) 112(12) 118(12) 121(12) 124(13) <0.001
Mean DBP, mmHg (±SD) 73(8) 76(7) 78(8) 80(8) <0.001
HTN present(%) 6 11 15 19 <0.001
Antihypertensive (%) 6 10 14 19 <0.001
Median AST, IU/L (IQR) 25 (22,29) 28 (25,32) 30 (26,34) 34 (29,41) <0.001
Median ALT, IU/L (IQR) 23 (19,29) 30 (25,38) 35 (29,45) 46 (35,61) <0.001
Mean uric acid, mg/dl 4.8(1.3) 5.7(1.2) 6.2(1.2) 6.4(1.3) <0.001
Median hsCRP, mg/L (IQR) 0.9 (0.5,1.8) 1.1 (0.6,2.1) 1.4 (0.7,2.7) 1.6 (0.9,2.9) <0.001
Median triglycerides, mg/dl (IQR) 88 (67,119) 107 (79,149) 130 (95,180) 151 (108, 211) <0.001
Mean HDL, mg/dl (±SD) 54(14) 49(13) 45(12) 45(12) <0.001
Mean LDL, mg/dl (±SD) 120(30) 131(32) 134(34) 138(34) <0.001
Mean FBG, mg/dl (±SD) 85(8) 88(9) 91(10) 93(13) <0.001
NAFLD present(%) 9 27 49 59 <0.001
Statin (%) 4 7 9 12 <0.001
Current smoker (%) 7 8 10 11 <0.001
High alcohol consumption (%) 9 11 15 27 <0.001
Physically active (%) 80 79 73 70 <0.001