Table 1.
Demographic data of the study population.
| Characteristics | Death group | Survival group | P | Ppsm |
|---|---|---|---|---|
| N (sample size) | 104 | 418 | ||
| Baseline variables | ||||
| Age (year) | 74.0[67.0–82.5] | 68.0[58.0–76.0] | 0.000 | 0.438 |
| Gender (Male) | 57(54.8) | 284(67.9) | 0.012 | 0.556 |
| LOS ICU (day) | 2.0[1.1–5.9] | 2.0[1.1–3.2] | 0.562 | |
| LOS hospital (day) | 3.1[1.3–7.8] | 5.1[3.1–9.3] | 0.000 | 0.438 |
| Coexisting comorbidities | ||||
| Congestive heart failure | 59(56.7) | 194(46.4) | 0.060 | |
| Peripheral vascular disease | 18(17.3) | 40(9.6) | 0.035 | |
| Cerebrovascular disease | 13(12.5) | 36(8.6) | 0.258 | |
| Chronic pulmonary disease | 18(17.3) | 59(14.1) | 0.440 | |
| Rheumatic disease | 3(2.9) | 11(2.6) | 1.000 | |
| Peptic ulcer disease | 1(0.9) | 6(1.4) | 1.000 | |
| Liver disease | 5(4.8) | 14(3.3) | 0.556 | |
| Diabetes | 44(42.3) | 123(29.4) | 0.012 | |
| Renal disease | 36(34.6) | 69(16.5) | 0.000 | |
| Malignant cancer | 7(6.7) | 17(4.1) | 0.292 | |
| Hypertension | 24(23.1) | 160(38.3) | 0.004 | |
| Obesity | 12(11.5) | 31(7.4) | 0.168 | |
| Laboratory tests | ||||
| Red blood cell(1012/L) | 3.7 ± 0.7 | 4.1 ± 0.7 | 0.000 | |
| White blood cell (109/L) | 15.7[11.9–20.0] | 11.4[9.0–15.2] | 0.000 | |
| Platelets(109/L) | 192.3[151.1–230.3] | 207.0[167.7–255.5] | 0.004 | |
| Hemoglobin(g/dL) | 11.0 ± 2.1 | 12.2 ± 2.0 | 0.000 | |
| Anion gap(mmol/L) | 20.0[16.5–23.0] | 15.0[13.0–17.5] | 0.000 | |
| BUN (mmol/L) | 34.5[27.0–51.5] | 17.0[13.5–22.0] | 0.000 | |
| Creatinine(ng/dL) | 1.9[1.4–2.6] | 0.9[0.8–1.2] | 0.000 | |
| INR | 1.5[1.2–1.9] | 1.2[1.1–1.3] | 0.000 | |
| Vital signs | ||||
| Heart rate(bpm) | 85.2[72.7–99.0] | 77.7[70.1–85.9] | 0.000 | |
| SBP (mmHg) | 104.7[96.0–113.4] | 113.5[105.5–122.9] | 0.000 | |
| DBP (mmHg) | 61.8 ± 10.1 | 67.4 ± 10.5 | 0.000 | |
| MBP (mmHg) | 74.6[69.7–82.4] | 81.5[75.1–88.4] | 0.000 | |
| Respiratory rate(cpm) | 21.2[19.0–24.5] | 19.0[17.2–21.0] | 0.000 | |
| Temperature(℃) | 36.7[36.4–37.1] | 36.8[36.7–37.0] | 0.002 | |
| SpO2(%) | 96.5[92.5–98.3] | 96.7[95.6–97.7] | 0.348 | |
| Scoring systems | ||||
| LODS | 11.0[6.5–13.0] | 2.0[1.0–5.0] | 0.000 | |
| OASIS | 45.0[35.0–50.0] | 28.0[22.0–35.0] | 0.000 | |
| SAPS II | 55.0[43.0–69.0] | 29.0[23.0–38.0] | 0.000 | |
| PCI/CABG | 41(39.4) | 313(74.9) | 0.000 | 0.883 |
LOS Length of Stay, ICU Intensive Care Unit, BUN Blood Urea Nitrogen, INR International Normalized Ratio, bpm beat per minute, SBP Systolic Blood Pressure, DBP Diastolic Blood Pressure, MBP Mean Blood Pressure, cpm count per minute, SpO2 Saturation of Peripheral Oxygen, LODS Logistic Organ Dysfunction System, OASIS Oxford Acute Severity of Illness Score, SAPS II Simplified Acute Physiology Score, PCI Percutaneous Coronary Intervention, CABG Coronary Artery Bypass Grafting.