| Age (years) | 72.25±11.6 | 73.05 ± 17.4 | t=-0.172 | 0.865 |
| Mean ± SD (range) | 55-95 | 26-99 |
| Gender(%) |
| Male | 9 (45) | 11 (52.4) | χ2=0.223 | 0.636 |
| Female | 11 (55) | 10 (47.6) |
| ICU Length of stay (days)† | 9 | 13 | Z=-0.72 | 0.472 |
| Median (interquartile range) | 1.25-26.5 | 3-26.5 |
| Primary diagnosis (%) |
| Respiratory disorder | 11 (55) | 11 (52.4) | χ2=1.119 | 0.891 |
| Neurological disorder | 4 (20) | 3 (14.3) |
| Cardiac disorder | 3 (15) | 3 (14.3) |
| Multiple trauma | 0 (0) | 0 (0) |
| Septic shock/septicemia/multiple organ failure | 1 (5) | 1 (4.8) |
| Others | 1 (5) | 3 (14.3) |
| Total input food/24h (ml) |
| (Mean ± SD) |
| First day | 1040 ± 0 | 1200 ± 0 | | N/A |
| Second day | 1200 ± 0 | 1200 ± 0 |
| Third day | 1200 ± 0 | 1200 ± 0 |
| Fourth day | 1200 ± 0 | 1200 ± 0 |