Table 1.
Baseline characteristics of the studied population (n = 1,178)
| 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% |
Data are mean ± SD (range) or numbers (n) of subjects.
γ-glutamyl transpeptidase (γ-GTP), eGFR; estimated glomerular filtration rate, TBARS; thiobarbituric acid reactive substances.