| Number of risk factors | Number of patients (%) | ||
| Oral feeding group | Tube feeding group | Total | |
| No risk factors | 12 (46.15%) | 14 (53.85%) | 26 |
| Single risk factors | 23 (46.94%) | 26 (53.06%) | 49 |
| Two risk factors | 13 (25%) | 39 (75%) | 52 |
| Three risk factors | 2 (9.09%) | 20 (90.91%) | 22 |