| Characteristics | N |
|---|---|
| Gender (M : F) | 5 : 11 |
| Age (years) | 51.2±9.0 (38-70) |
| The average treatment periods (days) | 98.4±58.8 (32-202) |
| The average treatment times (days) | 17.8±12.2 (3-47) |
| The days after onset (days) | 530.5±1009.3 (5-3795) |
| Type of olfactory disorder | |
| anosmia | 7 |
| hyposmia | 9 |
| Underlying cause of olfactory disorder | |
| post-viral | 8 |
| sinonasal diseases | 2 |
| head trauma | 1 |
| unknown | 5 |
| Total | 16 |