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Table 1 Baseline characteristics of the studied population (n = 1,178)

From: Cross-sectional and longitudinal study of association between circulating thiobarbituric acid-reacting substance levels and clinicobiochemical parameters in 1,178 middle-aged Japanese men - the Amagasaki Visceral Fat Study

  year 2006 (n = 1,178) year 2007 (n = 1,178) year 2008 (n = 1,178)
Age (year) 45 ± 10 (20-68) 46 ± 10 (21-69) 47 ± 10 (22-70)
Body weight (kg) 68.8 ± 9.5 (43.7-118.5) 68.8 ± 9.6 (44.4-124.5) 68.7 ± 9.7 (44.0-118.1)
Body mass index (kg/m2) 23.8 ± 2.9 (16.4-37.6) 23.8 ± 3.0 (15.9-39.4) 23.8 ± 3.0 (16.0-37.1)
Waist circumference (cm) 82.5 ± 8.1 (59-119) 82.5 ± 8.2 (60-117) 81.9 ± 8.0 (59-119)
Estimated visceral fat area (cm2) 88.5 ± 38.5 (14-304) 89.8 ± 39.3 (4-290) 87.8 ± 37.8 (4-316)
Systolic blood pressure (mmHg) 123 ± 14 (86-174) 122 ± 15 (90-186) 122 ± 16 (87-190)
Diastolic blood pressure (mmHg) 75 ± 10 (45-120) 75 ± 11 (46-110) 75 ± 11 (51-116)
Total cholesterol (mmol/L) 5.17 ± 0.85 (2.6-8.7) 5.20 ± 0.86 (2.8-8.5) 5.19 ± 0.85 (2.5-8.6)
Triglyceride (mmol/L) 1.61 ± 1.36 (0.25-23.8) 1.65 ± 1.21 (0.24-10.6) 1.62 ± 1.25 (0.24-16.8)
High-density lipoprotein-cholesterol (mmol/L) 1.43 ± 0.34 (0.62-2.75) 1.50 ± 0.38 (0.57-3.39) 1.50 ± 0.39 (0.39-2.93)
Low-density lipoprotein-cholesterol (mmol/L) 3.00 ± 0.75 (0.93-6.14) 3.23 ± 0.80 (0.91-6.68) 3.12 ± 0.78 (0.67-5.88)
Hemoglobin A1c (%), JDS 5.1 ± 0.6 (3.0-10.8) 5.1 ± 0.5 (3.5-10.2) 5.2 ± 0.5 (3.3-9.9)
γ-GTP (μkat/L) 0.48 ± 0.55 (0.10-6.30) 0.47 ± 0.57 (0.08-8.85) 0.49 ± 0.63 (0.09-6.81)
Creatinine (μmol/L) 77.8 ± 9.8 (49.5-116.7) 75.8 ± 10.1 (43.3-113.2) 75.4 ± 10.0 (48.6-116.7)
eGFR (mL/min/1.73 m2) 77.0 ± 11.8 (44.6-124.9) 78.8 ± 12.5 (46.6-135.5) 78.8 ± 12.6 (47.7-138.0)
Uric acid (mmol/L) 362.0 ± 71.8 (136.8-618.6) 361.0 ± 72.6 (124.9-672.2) 360.5 ± 70.3 (124.9-636.5)
TBARS (nmol/mL) 7.6 ± 2.3 (3.0-20.1) 7.7 ± 2.0 (3.7-25.3) 5.9 ± 1.6 (2.8-18.7)
Adiponectin (μg/mL) 6.7 ± 3.1 (0.8-31.8) 7.0 ± 3.3 (0.7-37.3) 7.3 ± 3.7 (0.6-39.1)
Smoking       
   Current-smoker n = 460 39.0% n = 442 37.5% n = 366 31.1%
   Ex-smoker n = 172 14.6% n = 186 15.8% n = 170 14.4%
   Non-smoker n = 546 46.4% n = 550 46.7% n = 642 54.5%
  1. Data are mean ± SD (range) or numbers (n) of subjects.
  2. γ-glutamyl transpeptidase (γ-GTP), eGFR; estimated glomerular filtration rate, TBARS; thiobarbituric acid reactive substances.