Table 1.
Clinical characteristics of heart failure patients
| Variable | Hospital readmission | |||||
|---|---|---|---|---|---|---|
| No (n = 1,314) | Yes (n = 542) | |||||
| Median | Min–Max | Mean ± SD | Median | Min–Max | Mean ± SD | |
| Age (yr) | 76.0 | 22.0–97.0 | 74.0 ± 13.5 | 73.0 | 27.0–97.0 | 71.7 ± 13.4 |
| BMI (kg/m2) | 25.3 | 14.3–53.3 | 25.8 ± 5.1 | 25.0 | 13.8–47.3 | 25.8 ± 4.9 |
| Ejection fraction (%) | 25.0 | 10.0–55.0 | 26.4 ± 10.9 | 20.0 | 10.0–50.0 | 22.8 ± 10.1 |
| SBP (mmHg) | 121.0 | 67.0–220.0 | 125.4 ± 24.4 | 125.0 | 70.0–220.0 | 126.0 ± 24.1 |
| DBP (mmHg) | 80.0 | 40.0–137.0 | 77.9 ± 15.6 | 80.0 | 44.0–140.0 | 78.1 ± 15.1 |
| FBS (mg/dL) | 98.5 | 38.0–455.0 | 113.3 ± 51.2 | 97.0 | 31.0–453.0 | 112.6 ± 53.0 |
| BUN (mg/dL) | 23.0 | 10.0–127.5 | 26.5 ± 13.6 | 24.0 | 11.5–95.0 | 27.2 ± 12.1 |
| Creatinine (mg/dL) | 1.3 | 0.5–10.7 | 1.4 ± 0.8 | 1.3 | 0.7–10.2 | 1.4 ± 0.7 |
| Cholesterol (mg/dL) | 141.0 | 50.0–386.0 | 146.7 ± 43.5 | 135.0 | 30.0–317.0 | 142.3 ± 41.2 |
| Triglycerides (mg/dL) | 103.0 | 25.0–437.0 | 115.3 ± 52.3 | 99.0 | 28.0–358.0 | 110.8 ± 50.5 |
| HDL (mg/dL) | 36.0 | 20.0–85.0 | 38.0 ± 9.7 | 38.0 | 20.0–74.0 | 38.8 ± 9.8 |
| LDL (mg/dL) | 81.0 | 24.0–313.0 | 86.7 ± 32.9 | 80.0 | 26.0–382.0 | 84.2 ± 32.7 |
| CK-MB (U/L) | 22.0 | 2.0–980.0 | 34.5 ± 57.6 | 22.0 | 7.0–1089.0 | 32.5 ± 60.3 |
| Sodium (Na) (mmol/L) | 139.5 | 116.0–164.5 | 139.1 ± 4.0 | 140.0 | 121.5–148.0 | 139.6 ± 3.7 |
| Potassium (K) (mmol/L) | 4.2 | 2.9–7.3 | 4.2 ± 0.5 | 4.2 | 2.7–6.6 | 4.2 ± 0.4 |
| WBC (×109/L) | 7.6 | 2.5–23.6 | 8.1 ± 2.9 | 7.4 | 2.4–20.9 | 7.9 ± 2.7 |
| RBC (×109/L) | 4.6 | 2.6–8.4 | 4.6 ± 0.7 | 4.6 | 2.7–7.5 | 4.7 ± 0.7 |
| Hemoglobin (Hb) (g/dL) | 13.6 | 6.0–19.9 | 13.5 ± 2.1 | 13.7 | 8.1–19.8 | 13.7 ± 2.1 |
| Hct (%) | 41.8 | 19.7–63.3 | 41.8 ± 6.0 | 41.8 | 25.2–62.8 | 42.3 ± 5.9 |
| RDW (%) | 14.5 | 11.5–24.6 | 14.9 ± 2.0 | 14.5 | 11.8–23.6 | 15.0 ± 2.0 |
| Platelet (×103/μL) | 188.0 | 40.0–573.0 | 197.1 ± 69.5 | 185.0 | 50.0–578.0 | 198.3 ± 71.9 |
| MCV (fL) | 90.1 | 58.3–118.1 | 89.4 ± 7.1 | 90.9 | 62.3–112.3 | 90.3 ± 6.9 |
| MCH (pg) | 29.3 | 16.4–43.1 | 29.0 ± 2.9 | 29.6 | 17.8–37.7 | 29.2 ± 2.9 |
| MCHC (g/dL) | 32.4 | 25.9–43.5 | 32.3 ± 1.6 | 32.4 | 26.2–36.3 | 32.3 ± 1.6 |
| PT (s) | 13.2 | 12.0–36.0 | 14.4 ± 3.5 | 13.3 | 12.0–36.0 | 14.4 ± 3.4 |
| INR | 1.1 | 1.0–10.5 | 1.3 ± 0.7 | 1.1 | 1.0–6.5 | 1.3 ± 0.6 |
| PTT (s) | 27.0 | 20.0–120.0 | 29.5 ± 9.5 | 27.0 | 20.5–120.0 | 29.6 ± 10.0 |
BMI: body mass index, SBP: systolic blood pressure, DBP: diastolic blood pressure, FBS: fasting blood glucose, BUN: blood urea nitrogen, HDL: high-density lipoprotein, LDL: low-density lipoprotein, CK-MB: creatine kinase-MB, WBC, white blood cell, RBC: red blood cell, RDW: red cell distribution width, Hct: hematocrit, MCV: mean corpuscular volume, MCH: mean corpuscular hemoglobin, MCHC: mean corpuscular hemoglobin concentration, PT: prothrombin time, INR: international normalized ratio, PTT: partial thromboplastin time, SD, standard deviation.