Table 1 Summary of patient characteristics (means ± SD, n = 118, each group)
Characteristic | Young-aged | Middle-aged | Old-aged | P-value |
|---|---|---|---|---|
N | 37 | 41 | 40 | |
Age (years) | 38.8 ± 5.2 | 54.9 ± 4.0 | 73.7 ± 6.5 | <0.001 |
Male gender (%) | 19 (51.4) | 22 (53.7) | 20 (50.0) | 0.893 |
Body weight (kg) | 68.7 ± 7.2 | 71.5 ± 6.4 | 69.2 ± 6.8 | 0.149 |
Smoking current (%) | 19 (51.3) | 23 (56.1) | 21 (52.5) | 0.827 |
Pack-years of smoking | 5.7 ± 1.0 | 6.0 ± 0.8 | 5.8 ± 0.9 | 0.332 |
Diabetes (%) | 13 (35.1) | 18 (43.9) | 18 (39.0) | 0.600 |
Fasting glucose (mmol/L) | 6.4 ± 1.6 | 6.8 ± 1.9 | 6 .5 ± 1.7 | 0.525 |
Hypertension (%) | 20 (54.1.0) | 24 (58.50) | 22 (55.0) | 0.834 |
Systolic BP (mm Hg) | 146 ± 21 | 148 ± 19 | 144 ± 21 | 0.659 |
Diastolic BP (mm Hg) | 91 ± 17 | 94 ± 17 | 92 ± 16 | 0.765 |
Hyperlipidemia (%) | 26 (70.3) | 30 (73.2) | 25 (62.5) | 0.583 |
Total cholesterol (mmol/L) | 6.4 ± 0.8 | 6.5 ± 0.7 | 6.2 ± 0. | 0.362 |
LDL-C (mmol/L) | 4.7 ± 0.1 | 4.6 ± 0.1 | 4.4 ± 0.1 | 0.115 |
HDL-C (mmol/L) | 1.22 ± 0.42 | 1.29 ± 0.55 | 1.20 ± 0.42 | 0.736 |
Triglycerides (mmol/L) | 2.9 ± 1.8 | 3.7 ± 0.4 | 2.4 ± 2.0 | 0.067 |
Chronic renal failure (%) | 4 (10.8) | 6 (14.6) | 7 (17.5) | 0.662 |
Chronic liver disease (%) | 5 (13.5) | 9 (22.2) | 8 (20.0) | 0.554 |
COPD (%) | 7 (18.9) | 11 (26.8) | 12 (30.0) | 0.497 |
Peripheral vascular disease (%) | 15 (40.5) | 16 (39.0) | 21 (52.5) | 0.143 |
Prior myocardial infarction (%) | 5 (13.5) | 7 (17.1) | 9 (22.5) | 0.565 |
Prior stroke (%) | 11 (29.7) | 14 (34.1) | 16 (40.0) | 0.629 |
STEMI (%) | 19 (51.4) | 22 (53.7) | 19 (47.50) | 0.861 |
Killip class >1 (%) | 14 (37.8) | 20 (48.8) | 25 (62.5) | 0.214 |
IRA | ||||
LAD (%) | 21 (56.8) | 25 (61.0) | 26 (65.0) | 0.747 |
LCX (%) | 7 (18.9) | 10 (24.4) | 9 (22.5) | 0.764 |
RCA (%) | 9 (24.3) | 6 (14.6) | 5 (12.5) | 0.522 |
