Table 2. Biochemical variables at admission and surgical data of the population.
| ACS |
SA |
|||||
| ≥ 75 yrs |
< 75 yrs |
P | ≥ 75 yrs |
< 75 yrs |
P | |
| n = 155 | n = 604 | n = 58 | n = 218 | |||
| Hemoglobin (g/L) | 121.059 ± 28.70 | 137.32 ± 28.70 | < 0.01 | 128.53 ± 27.13 | 137.67 ± 22.47 | < 0.01 |
| Platelet (×109/L) | 180.03 ± 57.37 | 210.64 ± 71.15 | < 0.01 | 190.70 ± 55.27 | 198.88 ± 59.04 | 0.344 |
| Blood glucose (mmol/L) | 6.93 ± 2.79 | 6.79 ± 2.94 | 0.603 | 6.04 ± 1.97 | 6.24 ± 2.43 | 0.646 |
| Plasma cholesterol (mmol/L) | 3.91 ± 0.96 | 3.96 ± 1.02 | 0.535 | 3.73 ± 0.77 | 4.10 ± 1.00 | < 0.05 |
| Triglyceride (mmol/L) | 1.35 ± 0.70 | 1.72 ± 1.14 | < 0.01 | 1.37 ± 0.76 | 1.86 ± 1.20 | < 0.01 |
| HDL (mmol/L) | 1.06 ± 0.33 | 0.97 ± 0.35 | < 0.05 | 1.04 ± 0.27 | 1.02 ± 0.36 | 0.704 |
| LDL (mmol/L) | 2.44 ± 0.77 | 2.45 ± 0.81 | 0.88 | 2.21 ± 0.68 | 2.50 ± 0.87 | < 0.05 |
| Albumin (g/L) | 38.65 ± 7.72 | 41.28 ± 5.94 | < 0.01 | 41.95 ± 5.07 | 42.20 ± 4.53 | 0.716 |
| ALT* (U/L) | 52.37 ± 199.47 | 38.78 ± 32.38 | 0.408 | 26.62 ± 19.24 | 27.05 ± 16.40 | 0.864 |
| AST* (U/L) | 94.04 ± 146.59 | 66.68 ± 112.15 | < 0.05 | 33.84 ± 27.64 | 25.56 ± 14.99 | < 0.05 |
| Bilirubin* (μmol/L) | 13.99 ± 7.10 | 14.24 ± 6.45 | 0.698 | 13.81 ± 8.75 | 13.69 ± 8.88 | 0.928 |
| LDH* (U/L) | 636.76 ± 1182.63 | 471.56 ± 520.44 | 0.174 | 204.08 ± 66.94 | 249.69 ± 168.84 | < 0.05 |
| Creatinine (μmol/L) | 86.34 ± 33.74 | 75.48 ± 35.63 | < 0.01 | 83.95 ± 21.18 | 77.03 ± 43.78 | 0.244 |
| Uric acid (μmol/L) | 350.36 ± 120.22 | 327.99 ± 118.83 | < 0.05 | 355.17 ± 90.06 | 332.99 ± 117.21 | 0.204 |
| Urea nitrogena | 6.82 ± 2.74 | 5.84 ± 3.09 | < 0.01 | 6.19 ± 2.12 | 6.03 ± 1.88 | 0.586 |
| CK# (U/L) | 686.74 ± 1239.19 | 640.75 ± 1265.52 | 0.704 | 103.78 ± 73.33 | 94.62 ± 82.36- | 0.494 |
| CK-MB# (U/L) | 72.01 ± 125.48 | 70.55 ± 141.08 | 0.910 | 18.93 ± 10.21 | 16.93 ± 9.29 | 0.203 |
| Elevation of TnT# | 70 (47.3%) | 234 (41.9%) | 0.235 | 3 (6.1%) | 15 (7.7%) | 0.951 |
| Pro-BNP# (pg/mL) | 1750.49 ± 2222.81 | 756.33 ± 1400.55 | < 0.01 | 731.80 ± 1081.07 | 516.33 ± 1193.67 | 0.384 |
| SBP (mmHg) | 129.34 ± 22.37 | 128.52 ± 19.97 | 0.679 | 137.57 ± 21.77 | 130.30 ± 16.71 | < 0.05 |
| DBP (mmHg) | 75.80 ± 12.48 | 79.79 ± 12.22 | < 0.01 | 76.55 ± 9.01 | 79.12 ± 12.58 | 0.146 |
*Data missing for 1.5% (16) of the population. #Data missing for 13% (136) of the population. ACS: acute coronary syndrome; ALT: alanine aminotransferase; AST: aspartate aminotransferase; CK: creatine kinase; CK-MB: creatine kinase isoenzyme-MB; DBP: diastolic blood pressure; HDL: high density lipoprotein; LDH: lactate dehydrogenase; LDL: low density lipoprotein; pro-BNP: pro-brain natriuretic peptide; SA: stable angina; SBP: systolic blood; TnT: troponin T.