Table 1 Baseline characteristics, by tertile of lactate level
Lac ≤ 1.1 mmol/L n= 410 | Lac 1.2-1.7 mmol/L n= 398 | Lac ≥ 1.8 mmol/L n= 368 | P | |
|---|---|---|---|---|
Gender (male) | 73.9 | 74.4 | 72.0 | .738 |
Age | 63 ± 13 | 63 ± 13 | 64 ± 12 | .160 |
BMI | 26 ± 4 | 27 ± 13 | 28 ± 5 | .133 |
Hypotension | 4.7 | 4.0 | 14.3 | < .001 * |
Heart rate | 77 ± 16 | 78 ± 19 | 81 ± 21 | .007 * |
Anterior infarction | 40.9 | 36.0 | 40.9 | .273 |
Time in minutes from symptom onset to lactate measurement | 176 (128 to 297) | 160 (110 to 305) | 173 (123 to 272) | .217 |
TIMI-flow 0 to 1 | 56.7 | 71.3 | 69.5 | < .001 * |
Pre-infarct angina | 53.8 | 48.4 | 46.7 | .134 |
Risk factors: | ||||
Hypertension | 31.7 | 38.2 | 41.3 | .024 |
Diabetes | 7.4 | 8.9 | 19.0 | < .001 * |
Hypercholesterolemia | 32.5 | 37.0 | 31.5 | .321 |
Smoking | 56.5 | 47.4 | 40.2 | < .001 * |
Family History | 42.9 | 45.2 | 46.6 | .607 |
Previous myocardial infarction | 9.7 | 11.2 | 12.0 | .585 |
Previous PCI | 8.6 | 7.2 | 9.0 | .653 |
Previous CABG | 2.5 | 2.4 | 3.2 | .789 |
Admission Hemoglobin mmol/L | 8.0 ± 1.1 | 8.2 ± 1.1 | 8.2 ± 1.2 | .217 |
Creatinine μmol/L | 77 (66 to 91) | 80 (68 to 93) | 83 (70 to 99) | .002 |