Table 1. Baseline Characteristics of the Study Participants Who Were Eligible and Unavailable for Re-examination.
| Variables | Eligible participants (n = 808) | Participants unavailable for re-examination (n = 516) | P value |
|---|---|---|---|
| Age, year | 59.0 ± 7.8 | 61.5 ± 7.8 | 0.001 |
| Men, n (%) | 359 (44.4) | 262 (50.8) | 0.024 |
| Lipids and lipoproteins | |||
| Total cholesterol, mg/dL | 215.47 ± 39.93 | 214.42 ± 38.93 | 0.662 |
| LDL cholesterol, mg/dL | 135.88 ± 36.05 | 135.73 ± 35.45 | 0.739 |
| HDL cholesterol, mg/dL | 58.61 ± 13.31 | 57.82 ± 12.89 | 0.103 |
| Triglycerides, mg/dL | 114.0 (83.0, 166.0) | 122.0 (86.5, 176.0) | 0.330 |
| Lipid-lowering treatment, n (%) | 94 (11.6) | 72 (14.0) | 0.214 |
| Blood pressure | |||
| Systolic blood pressure, mmHg | 128.9 ± 18.3 | 130.9 ± 19.6 | 0.057 |
| Diastolic blood pressure, mmHg | 80.6 ± 9.4 | 81.1 ± 10.7 | 0.350 |
| Hypertension, n (%) | 367 (45.4) | 282 (54.7) | 0.001 |
| Fasting blood glucose, mmol/L | 4.87 ± 1.00 | 5.08 ± 1.43 | 0.001 |
| Diabetes, n (%) | 42 (5.2) | 49 (9.4) | 0.001 |
| Body mass index, kg/m2 | 25.0 ± 3.2 | 24.9 ± 3.2 | 0.665 |
| Obesity, n (%) | 140 (17.3) | 79 (15.3) | 0.335 |
| High-sensitivity CRP, mg/L | 0.82 (0.37, 1.76) | 1.02 (0.47, 2.05) | 0.002 |
| Current smoking, n (%) | 82 (10.1) | 44 (8.5) | 0.327 |
CRP, C-reactive protein; HDL, high-density lipoprotein; LDL, low-density lipoprotein.
Data are expressed as number (percent) for categorical variables or mean ± standard deviation for continuous variables, except for hs-CRP and triglycerides, which are presented as median (interquartile range). Current smoking was defined as ≥ 1 cigarettes per day. Hypertension was defined as blood pressure ≥ 140 mm Hg systolic, ≥ 90 mm Hg diastolic, and/or current antihypertensive treatment. Diabetes was defined as fasting blood glucose ≥ 7.0 mmol/L or previously diagnosed diabetes. Obesity was defined as body mass index ≥ 28 kg/cm2.