Characteristics (n=1,919) | Inpatient (n=1,321) | Ambulatory (n=598) | Data missing | pa |
---|---|---|---|---|
Age, years, median (IQR) | 82 (74–88) | 81 (73–88) | 0 | 0.218 |
Prior comorbidities | ||||
Ischaemic heart disease, n (%) | 441 (33) | 199 (33) | 0 | 0.964 |
Pulmonary disease, n (%) | 284 (22) | 117 (20) | 3 | 0.627 |
Cerebrovascular disease, n (%) | 205 (16) | 63 (11) | 8 | 0.014 |
Diabetes, n (%) | 383 (29) | 181 (30) | 3 | 0.847 |
Hypertension, n (%) | 691 (52) | 337 (56) | 3 | 0.255 |
Valvular heart disease, n (%) | 225 (17) | 96 (16) | 4 | 0.835 |
Smoker, n (%) | 108 (8) | 52 (9) | 395 | 0.093 |
Characteristics at admission | ||||
Hypotension (bp <100 mmHg systolic), n (%) | 128 (10) | 30 (5) | 0 | 0.001 |
NHYA breathlessness scale (1–4), median (IQR) | 3 (3–4) | 3 (3–3) | 31 | 0.024 |
Heart rate on admission, beats per minute, median (IQR) | 86 (71–102) | 82 (69–97) | 0 | 0.012 |
NtProBNP, pg/mL, median (IQR) | 6,015 (2,398–14,340) | 3,516 (1,773–8,717) | 934b | <0.001 |
Creatinine, μmol/L, median (IQR) | 104 (70–149) | 102 (78–140) | 62 | 0.367 |
Haemoglobin, g/L, median (IQR) | 119 (101–136) | 124 (108–138) | 1 | 0.002 |
Living alone, n (%) | 523 (40) | 196 (33) | 103 | 0.016 |
Outcomes | ||||
30-day mortality, n (%)c | 570 (34) | 28 (11) | 0 | <0.001 |
30-day mortalityd (comorbidity corrected) | <0.001 |
↵ap values calculated using ranksum tests for continuous variables and chi-squared test for categorical variables.
↵bNTProBNP reading collected by heart failure nurses, awaiting confirmation from direct lab testing results.
↵c30 day mortality - death in hospital or death within 30 days of discharge.
↵dFrom multivariable regression models based on backwards elimination p<0.05, from mortality plus Table 1 factors. bp = blood pressure; IQR = interquartile range; NTProBNP = N-terminal-pro-brain natriuretic peptide.