Table 2. Characteristics of patients aged ≥ 50 years and < 50 years.
| Variables | < 50 years (n = 46) | ≥ 50 years (n = 110) | p-value |
| Men/women | 13424 | 66/44 | 0.04 |
| Hypertension (%) | 7 (%) | 39 (%) | 0.01 |
| Dyslipidemia (%) | 18 (%) | 38 (%) | 0.59 |
| Type 2 diabetes mellitus (%) | 6 (%) | 9 (%) | 0.38 |
| Smoking (%) | 11 (%) | 12 (%) | 0.05 |
| Body mass index (kg/m2) | 24.9 ± 3.7 | 24.6 ± 3.1 | 0.66 |
| Systolic blood pressure (mmHg) | 119.5 ± 12.7 | 128.1 ± 14.3 | 0.001 |
| Diastolic blood pressure (mmHg) | 70.3 ± 10.2 | 72.1 ± 10.5 | 0.36 |
| Fasting blood glucose (mg/dL) | 85.4 ± 25.2 | 80.3 ± 15.3 | 0.18 |
| Total cholesterol (mg/dL) | 220.3 ± 28.5 | 217.2 ± 37.4 | 0.67 |
| Total triglyceride (mg/dL) | 181.4 ± 110.9 | 152.9 ± 90.9 | 0.15 |
| Low-density lipoprotein cholesterol (mg/dL) | 140.4 ± 30.9 | 144.8 ± 38.2 | 0.55 |
| High-density lipoprotein cholesterol (mg/dL) | 42.6 ± 13.9 | 42.3 ± 13.0 | 0.9 |
| Statin usage (%) | 7 (%) | 40 (%) | 0.01 |
| Creatinine (mg/dL) | 1.1 ± 0.2 | 1.1 ± 0.2 | 0.61 |
| High sensitive C-reactive protein (mg/dL) | 0.1 ± 0.2 | 0.2 ± 0.4 | 0.51 |
| ASI | 52.9 ± 12.7 | 64.7 ± 28.1 | < .001 |
| Presence of a > 50% stenotic lesion (%) | 10 (%) | 43 (%) | 0.04 |
Data are presented as the mean ± SD or numbers of patients (%).
ASI, arterial stiffness index; SD, standard deviation.