Baseline characteristics
| Continuous variables | Mean (SD) | Median (IQR) | Min–max |
| Age | 83.4 (8.1) | 85 (78–89) | 60–100 |
| Charlson comorbidity Index | 2.3 (1.5) | 2 (1–3) | 0–7 |
| GBS-ADL, total | 6.8 (5.7) | 5 (2–10) | 0–25 |
| GBS-ADL, dressing | 1.3 (1.4) | 1 (0–2) | 0–5 |
| GBS-ADL, food intake | 0.1 (0.4) | 0 (0–0) | 0–2 |
| GBS-ADL, physical activity | 2.0 (1.1) | 2 (2–2) | 0–5 |
| GBS-ADL, spontaneous activity | 1.0 (1.2) | 1 (0–2) | 0–5 |
| GBS-ADL, hygiene | 1.4 (1.4) | 2 (0–2) | 0–5 |
| GBS-ADL, toilet | 0.9 (1.4) | 0 (0–1) | 0–6 |
| Haemoglobin, g/L | 123 (19) | 124 (111–136) | 53–179 |
| eGFR, mL/min, n=197 | 42.3 (25) | 37 (26-51) | 6–198 |
| BMI, kg/m2, n=195 | 24.7 (5.1) | 24 (21–27) | 14–42 |
| Albumin, g/L, n=181 | 31.5 (4.9) | 32 (29–35) | 14–42 |
| BNP, ηg/L, n=85 | 261 (297) | 147 (54–377) | 3–1618 |
| Categorical variables | Number | Percentage | |
| Male sex | 70 | 35% | |
| In intervention group in original study | 99 | 50% |
↵Baseline characteristics for the entire sample. n=200 unless otherwise stated.
BMI, body mass index; BNP, brain natriuretic peptide; eGFR, estimated glomerular filtration rate; GBS-ADL, Gottfries-Bråne-Steen—activities of daily living.