Table 1.
Baseline patient characteristics according to quartiles of baseline N-terminal-pro-B-type-natriuretic-peptide
| Variable | NT-pro-BNP (pg/mL) |
|||
|---|---|---|---|---|
| Quartile 1 ≤1433 (n = 313) | Quartile 2 1434–3361 (n = 312) | Quartile 3 3362–9251 (n = 312) | Quartile 4 ≥9252 (n = 312) | |
| Age, years | 64.8 ± 8.7 | 65.7 ± 8.4 | 66.5 ± 7.6 | 65.8 ± 8.2 |
| Gender male, % (n) | 54 (170) | 55 (171) | 52 (161) | 55 (170) |
| Ever smoking, % (n) | 37 (116) | 42 (130) | 40 (125) | 43 (134) |
| Body mass index, kg/m2 | 28.9 ± 5.2 | 28.2 ± 4.5 | 27.1 ± 4.6 | 26.0 ± 4.4 |
| Systolic blood pressure, mmHg | 143 ± 21 | 144 ± 22 | 147 ± 23 | 149 ± 22 |
| Diastolic blood pressure, mmHg | 75 ± 11 | 75 ± 10 | 76 ± 11 | 77 ± 11 |
| Time receiving dialysis, months | 8.0 ± 6.8 | 8.4 ± 7.2 | 8.2 ± 6.8 | 8.5 ± 6.7 |
| Ultrafiltration volume, kg | 1.97 ± 1.19 | 2.30 ± 1.16 | 2.33 ± 1.18 | 2.42 ± 1.22 |
| Shunt, % (n) | 94 (294) | 95 (297) | 94 (294) | 90 (279) |
| Historya | ||||
| Arrhythmia, % (n) | 11 (33) | 13 (39) | 25 (77) | 27 (85) |
| MI, CABG, PCI, or CHD, % (n) | 21 (67) | 27 (83) | 31 (98) | 38 (117) |
| CHFb, % (n) | 27 (84) | 30 (93) | 37 (115) | 48 (149) |
| Stroke/TIA, % (n) | 18 (57) | 17 (53) | 19 (60) | 17 (52) |
| Peripheral vascular disease, % (n) | 36 (113) | 46 (145) | 41 (128) | 54 (169) |
| Haemoglobin, g/dL | 11.1 ± 1.4 | 10.9 ± 1.2 | 10.9 ± 1.3 | 10.6 ± 1.4 |
| Glycated haemoglobin, % | 6.79 ± 1.25 | 6.67 ± 1.27 | 6.75 ± 1.26 | 6.67 ± 1.26 |
| Phosphate, mg/L | 1.86 ± 0.43 | 1.99 ± 0.52 | 1.95 ± 0.55 | 2.00 ± 0.57 |
| Albumin, g/dL | 3.87 ± 0.27 | 3.84 ± 0.28 | 3.81 ± 0.31 | 3.76 ± 0.33 |
| LDL cholesterol, mg/dL | 127 ± 30 | 125 ± 31 | 126 ± 30 | 125 ± 29 |
Data are given as mean ± standard deviation. To convert haemoglobin values to mmol/L, multiply by 0.6206; to convert values for phosphate to mmol/L, multiply by 0.32; to convert values for LDL cholesterol to mmol/L, multiply by 0.02566. CABG, coronary artery bypass grafting surgery; PCI, percutaneous coronary intervention; CHD, coronary heart disease, documented by coronary angiography; TIA, transitory ischaemic attack.
aTypes of disease and intervention are not mutually exclusive.
bPredominantly New York Heart Association II.