Prevalence for olfactory dysfunction and olfactory identification impairment.
| Job | Olfactory dysfunction* | Odour identification impairment† |
| Office work | 21 (21.2) | 21 (21.2) |
| Automobile repair | 37 (45.1) | 45 (54.9) |
| Printing | 99 (69.7) | 117 (82.3) |
| Shoemaking | 40 (88.9) | 39 (86.7) |
| Plating | 24 (88.9) | 26 (96.3) |
Data are shown as number (%).
*Evaluated with KVSS I (office work) or TDI score of KVSS II (automobile repair, printing, shoemaking and plating).
†Evaluated with KVSS I (office work) or odour identification test in KVSS II (automobile repair, printing, shoemaking and plating).
KVSS, Korean version of Sniffin’s Stick; TDI, Threshold, Discrimination and Identification.