Table 1

Baseline characteristics

CharacteristicsNon-readmission
(n=76)
Readmission
(n=75)
P value
Age (years)73.87±9.0778.77±7.110.056
Female (%)46.146.70.940
Body mass index (kg/m2)23.98±2.9124.86±4.130.006
Hypertension (%)76.389.30.034
Antihypertensive drugs (n)1.51±0.741.97±0.820.355
Diabetes mellitus (%)17.140.00.002
Hyperlipaemia (%)34.221.30.077
Atrial fibrillation (%)61.874.70.091
Haemoglobin (g/L)132.51±16.30125.20±21.500.015
Diuretic (%)51.385.3<0.0001
Spirolactone (%)23.745.30.005
NT-proBNP (pg/mL)2695.41±2664.533676.73±4161.380.037
Creatinine (μmol/L)82.54±27.1692.61±31.130.316
Glomerular filtration rate,
(mL min–1×1.73 m–2)
79.17±23.5568.77±25.250.562
Uric acid (μmol/L)380.09±98.92410.47±111.30.388
C reactive protein (mg/L)14.95±26.7313.64±24.260.565
Thyroid function (%)19.734.70.039
Pacemaker (%)9.2120.578
Tumour (%)1.39.30.028
LVEF (%)63.86±7.7361.85±7.370.341
Echocardiography E/e’ ratio9.28±4.7210.47±3.680.285
Pulmonary artery pressure (mm Hg)35.36±12.5843.21±15.550.027
  • Values are presented as mean±SD.

  • E/e’, ratio of early diastolic mitral inflow velocity to septal mitral annulus tissue relaxation velocity; HFpEF, heart failure with preserved ejection fraction; LVEF, left ventricular ejection fraction; NT-proBNP, N-terminal pro-B-type natriuretic peptide.