Table 1.
Patient’s demographics and clinical characteristics.
| Characteristics | Patients (n=1257) |
|---|---|
| Basic demographics | |
| Age (median [IQR]) | 54.00 [41.00, 73.00] |
| Gender (female/male, %) | 740/517 (58.9/41.1) |
| Admission laboratory examinations | |
| Albumin (g/dL, mean (SD)) | 3.10 (0.64) |
| Creatinine (mg/dL, median [IQR]) | 1.00 [0.80, 1.20] |
| Urea nitrogen (mg/dL, median [IQR]) | 18.00 [13.00, 26.00] |
| Hemoglobin (g/dL, median [IQR]) | 12.25 [10.60, 13.70] |
| Glucose (mg/dL, median [IQR]) | 132.00 [111.00, 162.00] |
| Total serum calcium (mg/dL, median [IQR]) | 8.30 [7.80, 8.80] |
| Hematocrit (%, median [IQR]) | 36.10 [31.80, 39.80] |
| Sodium (mEq/L, median [IQR]) | 139.00 [137.00, 141.00] |
| RDW (%, median [IQR]) | 13.70 [13.00, 14.80] |
| Platelet count (K/uL, median [IQR]) | 241.00 [184.00, 296.00] |
| Neutrophils (%, median [IQR]) | 82.00 [73.72, 88.00] |
| Admission blood gas analysis | |
| pH (units, median [IQR]) | 7.36 [7.29, 7.42] |
| pO2 (mmHg, median [IQR]) | 142.00 [80.00, 248.00] |
| pCO2 (mmHg, median [IQR]) | 42.72 [37.00, 49.00] |
| Potassium (mEq/L, median [IQR]) | 4.00 [3.60, 4.50] |
| Admission vital signs | |
| Heart rate (BPM, median [IQR]) | 90.00 [77.00, 104.00] |
| Respiration rate (BPM, median [IQR]) | 18.00 [15.00, 22.00] |
| Addictions | |
| Tobacco use disorder (no/yes, %) | 1099/158 (87.4/12.6) |
| Alcohol abuse (no/yes, %) | 1142/115 (90.9/9.1) |
| Comorbidities | |
| Osteoporosis (no/yes, %) | 1146/111 (91.2/8.8) |
| Hypertension (no/yes, %) | 794/463 (63.2/36.8) |
| Respiratory failure (no/yes, %) | 1006/251 (80.0/20.0) |
| Dehydration (no/yes, %) | 1219/38 (97.0/3.0) |
| Diabetes (no/yes, %) | 1000/257 (79.6/20.4) |
| Acute myocardial infarction (no/yes, %) | 1238/19 (98.5/1.5) |
| Old myocardial infarction (no/yes, %) | 1182/75 (94.0/6.0) |
| Bacteremia (no/yes, %) | 1201/56 (95.5/4.5) |
| Pneumonia (no/yes, %) | 873/384 (69.5/30.5) |
| Aortocoronary by pass status (no/yes, %) | 1197/60 (95.2/4.8) |
| Obesity (no/yes, %) | 1196/61 (95.1/4.9) |
| Atrial fibrillation (no/yes, %) | 984/273 (78.3/21.7) |
| Mitral valve disorders (no/yes, %) | 1201/56 (95.5/4.5) |
| Sepsis (no/yes, %) | 1142/115 (90.9/9.1) |
| Congestive heart failure (no/yes, %) | 990/267 (78.8/21.2) |
| Ventricular fibrillation (no/yes, %) | 1252/5 (99.6/0.4) |
| Cardiac arrest (no/yes, %) | 1221/36 (97.1/2.9) |
| Severity of illness score at admission | |
| OASIS (median [IQR]) | 31.00 [26.00, 37.00] |
| SAPS-II (median [IQR]) | 31.00 [21.00, 40.00] |
| SOFA (median [IQR]) | 3.00 [1.00, 5.00] |
IRQ, inter-quartile range; SD, standard deviation; RDW, red blood cell distribution width; BPM, beats per minute; OASIS, the Oxford Acute Severity of Illness Score; SAPS, the Simplified Acute Physiology Score; SOFA, the Sepsis-related Organ Failure Assessment score.