| Options | N | Percentage |
| Cultural differences | 74 | 43.8 |
| Problems with present regulations | 48 | 28.4 |
| Doctors’ resistance to the shown model | 31 | 18.3 |
| Nurses’ lack of professional commitment | 12 | 7.1 |
| The harmfulness of their model for Iranian hospitals | 4 | 2.4 |
| Total | 169 | 100.0 |