Table 1.
Descriptive statistics of the case series.
| Variable | n | Mean | Range | SD |
|---|---|---|---|---|
| Age in years | 222 | 55.6 | 12–85 | 16.5 |
| Sex (Male/Female) | 222 (95/127) | |||
| Cause of olfactory loss | ||||
| Congenital | 10 | |||
| Idiopathic | 66 | |||
| Post-infection | 63 | |||
| Sino-nasal disease | 34 | |||
| Trauma | 33 | |||
| Miscellaneous * | 17 | |||
| Presence of parosmia | 35 | |||
| Presence of phantosmia | 30 | |||
| Duration of problem (months) | 212 | 32.9 | 2–204 | 43.6 |
| Threshold (Sniffin sticks) | 217 | 2.4 | 1–8.5 | 2.1 |
| Discrimination (Sniffin sticks) ** | 215 | 8.2 | 1–15 | 3.1 |
| Identification (Sniffin sticks) ** | 222 | 8.3 | 0–8 | 4.0 |
| Retronasal Western test (% correct) | 105 | 67.4 | 0–100 | 33.2 |
| Taste sprays (% correct) | 220 | 92.5 | 0–100 | 18.0 |
| Western-style diet (DFS *** score) | 221 | 53.2 | 24–81 | 10.9 |
* Iatrogenic, toxin exposure, other diseases. ** Number correct out of 16. *** Dietary fat and sugar scale.