Table 1.
Patient characteristics according to the anaemia status
| Anaemia (n = 106) | Non-anaemia (n = 114) | P | |
|---|---|---|---|
| Sex (M/F) | 56/50 | 38/76 | 0.003 |
| Age (y), mean (SD) | 84.04 (5.1) | 83.1 (4.9) | 0.21 |
| BMI (kg/m2), mean (SD) | 25.5 (5.0) | 25.9 (5.4) | 0.71 |
| ADL, premorbid at admission, mean (SD) | 3.74 (3.18) | 3.06 (3.17) | 0.09 |
| aADL, at discharge, mean (SD) | 3.87 (3.28) | 3.51 (3.10) | 0.49 |
| CRP (mg/L), mean (SD) | 49.3 (73.2) | 39.5 (67.8) | 0.15 |
| eGFR (ml/min/1.73 m2), mean (SD) | 46.6 (23.1) | 58.5 (21.9) | <0.001 |
| MMSE, mean (SD) | 8.2 (3.4) | 8.5 (2.8) | 0.77 |
| Main clinical diagnosis, n | |||
| -Heart and respiratory failure | 8 | 16 | 0.135 |
| -Infectious diseases | 31 | 27 | 0.35 |
| -Cancer | 9 | 1 | 0.008 |
| -Gastrointestinal diseases | 17 | 14 | 0.424 |
| -Falls-fractures-osteoporosis | 10 | 27 | 0.005 |
| -Neuropsychiatric diseases | 8 | 11 | 0.58 |
| -Other | 23 | 18 | 0.26 |
| LOS (days), mean (SD) | 16.4 (13.8) | 15.7 (11.2) | 0.88 |
| Comorbidities, mean (SD) | 3.13 (1.9) | 2.3 (1.5) | 0.001 |
| bHand grip strength (kg), mean (SD) | 18.4 (9.8) | 18.3 (9.2) | 0.75 |
| cGait speed (m/sec), mean (SD) | 0.51 (0.22) | 0.47 (0.23) | 0.36 |
Abbreviations: M male, F female, BMI body mass index, ADL activities of daily living (score between 0 and 12, higher scores indicating greater dependency), CRP C-reactive protein, eGFR estimated glomerular filtration ratio, MMSE Mini-Mental State Examination (maximum score of 12 as the best result), LOS length of stay
aData for ADL at discharge were available in 191 patients (83 patients with and 108 without anaemia)
bData for hand grip strength were available in 209 patients (104 patients with and 105 without anaemia)
cData for gait speed were available in 97 patients (42 patients with and 55 patients without anaemia)