Table 2 Characteristics of HF patients in derivation cohort stratified by readmission status

Age (years) [Mean ± SD]

69.9 ± 10.4

66.4 ± 13.1

0.019^*

Men [n (%)]

59 (68.6)

84 (61.3)

0.31

NYHA rank at discharge (III/IV) [n (%)]

77 (89.5)

139 (86.9)

0.034^*

NT-proBNP (pg/mL) [Median (IQR)]

5963 [3031, 11,269]

4874 [1607, 5732]

< 0.001^*

Ft3 (pmol/L) [Median (IQR)]

3.6 [3.2, 4.2]

3.7 [3.2, 4.3]

0.42

Ft4 (pmol/L) [Median (IQR)]

16.9 [15.07, 18.8]

17.5 [15.1, 19.8]

0.27

Tsh (uIU/mL) [Median (IQR)]

3.0 [1.3, 3.9]

2.4 [1.2, 4.1]

0.91

White Blood Cell Count (×10⁹/L) [Median (IQR)]

6.5 [5.0, 7.7]

6.4 [5.2, 8.0]

0.61

Hemoglobin (g/L) [Mean ± SD]

112.4 ± 21.3

121.6 ± 20.6

0.001^*

RDW-CV (%) [Median (IQR)]

14.1 [13.3, 15.6]

13.7 [12.9, 14.7]

0.01^*

RDW-SD (fL) [Median (IQR)]

47.7 [44.7, 51.4]

46.7 [43.3, 49.5]

0.098

Platelet (×10⁹/L) [Median (IQR)]

170 [142, 221]

166 [130, 209]

0.31

Meam platelet volume (fL) [Mean ± SD]

10.7 ± 1.3

10.9 ± 1.3

0.17

Glucose (mmol/L) [Median (IQR)]

5.0 [4.2, 6.5]

4.6 [4.2, 5.6]

0.10

Total Cholesterol (mmol/L) [Median (IQR)]

3.5 [2.9, 4.0]

3.4 [2.8, 4.2]

0.47

Triglyceride (mmol/L) [Median (IQR)]

1.3 [1.0, 1.4]

1.1 [0.8, 1.5]

0.47

High-density lipoprotein (mmol/L) [Median (IQR)]

0.93 [0.8, 1.1]

0.97 [0.8, 1.1]

0.30

Low-density lipoprotein (mmol/L) [Median (IQR)]

2.0 [1.7, 2.5]

1.9 [1.5, 2.6]

0.81

Blood urea nitrogen (mmol/L) [Median (IQR)]

8.8 [5.9, 10.8]

6.2 [4.4, 8.3]

< 0.001^*

Cardiac troponin I (ng/mL) [Median (IQR)]

0.043 [0.022, 0.069]

0.026 [0.013, 0.047]

< 0.001^*

Alanine aminotransferase (u/L) [Median (IQR)]

19.0 [12.9, 32.2]

21.5 [12.6, 32.5]

0.27

Aspartate transaminase (u/L) [Median (IQR)]

26.2 [19.1, 37.9]

25.9 [19.5, 39.2]

0.84

Infection [n (%)]

20 (23.2)

41 (26.3)

0.79

Ischemia [n (%)]

21 (24.4)

45 (28.1)

0.63

Cardiac overload [n (%)]

17 (11.6)

26 (16.2)

0.61

Hypertension [n (%)]

35 (40.7)

71 (44.3)

0.67

Arrhythmia [n (%)]

32 (37.3)

62 (38.8)

0.86

Myocardial infarction [n (%)]

17 (19.8)

34 (21.3)

0.91

Cerebral infarction [n (%)]

10 (11.6)

28 (17.5)

0.30

Chronic kidney disease [n (%)]

37 (43.0)

44 (27.5)

0.019^*

Chronic liver disease [n (%)]

16 (18.6)

33 (20.6)

0.83

Type 2 diabetes [n (%)]

22 (25.6)

47 (29.3)

0.63

COPD [n (%)]

12 (14.0)

10 (6.3)

0.07

Previous PCI [n (%)]

9 (10.5)

25 (15.6)

0.35

Left Ventricular Ejection Fraction [Median (IQR)]

35.0 (25.0, 53.0)

37.0 (28.0, 56.0)

0.24

Charlson Comorbidity Index [Median (IQR)]

2 [1.0, 3.0]

2 [1.0, 2.25]

< 0.01^*

Length of hospital stay (days) [Median (IQR)]

9 (7.0, 12.75)

9 (7.0, 11)

0.83

Medical insurance [n (%)]

61 (73.6)

109 (65.4)

0.65