| Malnourished (75) | At risk of malnutrition (119) | Normal nutritional status (106) | p | |
| ADL | 3.98 ± 1.9 | 1.8 ± 0.2 | 0.72 ± 0.02 | 0.000 |
| GDS | 7.95 ± 3.3 | 5.47 ± 3.5 | 2.99 ± 2.5 | 0.000 |
| MMSE | 21.2 ± 2.9 | 23.4 ± 2.9 | 24.6 ± 2.6 | 0.000 |
| Osteo articular pain (VNS) | 4.1 ± 2.8 | 3.8 ± 2.9 | 2.7 ± 2.0 | 0.000 |
| Hand grip strength (Kg) | 3.8 ± 0.1 | 13.7 ± 9.9 | 19.7 ± 11.7 | 0.000 |
| Length of hospital stay (days)* | 10 (8 - 15) | 10 (5 - 16) | 8 (5 - 12) | 0.000 |
| Death (%) (number) | 6.7 (5) | 1.7 (2) | 2.8 (3) | 0.000 |
| Patients with pressure sores (%) (number) | 28 (21) | 5.8 (7) | 0.9 (1) | 0.000 |
| Patients with vascular sores (%) (number) | 9 (7) | 11.6 (14) | 2.8 (3) | 0.000 |