Table 2.
Differences in clinical, laboratory, and instrumental parameters according to BNP levels.
| BNP ≥300 pg/mL | BNP <300 pg/mL | p | |
|---|---|---|---|
| Age (years) | 72.4 ± 9.6 | 69.3 ± 10.7 | <0.001 |
| Creatinine level (mg/dL) | 1.3 ± 0.7 | 1.0 ± 0.4 | <0.001 |
| Creatinine clearance (mL/min) | 55.7 ± 23.7 | 70.2 ± 25.3 | <0.001 |
| Haemoglobin (g/dL) | 11.4 ± 1.8 | 12.2 ± 2.0 | 0.001 |
| LVEF (%) | 40.7 ± 14.7 | 53.1 ± 11.2 | <0.001 |
| Barthel index at admission (score) | 81.2 ± 26.0 | 91.1 ± 19.7 | <0.001 |
| Hydration level at BIVA at admission (%) | 77 ± 5.3 | 73.9 ± 2.4 | <0.001 |
| 6MWT at admission (meters) | 297.6 ± 90.1 | 321.8 ± 94.2 | 0.015 |
| MMSE (score) | 26.7 ± 3.6 | 28.0 ± 2.5 | <0.001 |
| GDS (score) | 8.2 ± 4.7 | 6.9 ± 3.3 | 0.046 |
| Length of hospital stay (days) | 13.3 ± 8.1 | 11.1 ± 7.2 | <0.001 |
LVEF: left ventricular ejection fraction; BIVA: bioelectrical impedance vectorial analysis; 6MWT: 6-minute walking test; MMSE: Mini Mental State Examination; GDS: Geriatric Depression Scale.