Key points:
- Olfactory dysfunction can be the only presenting symptom of COVID-19.
Hens, finding a validated screening tool for OD is valuable.
- Q-SIT is a Three-item microencapsulated odor identification
psychophysical (objective) test.
- The prevalence of OD among COVID-19 cases was (16.3%) in our
population using Q-SIT compared to (27.4%) for self-reported symptom.
- Q-SIT showed high positive and negative predictive value in detecting
OD among patients with COVID-19 (84% and 93% respectively).
- Q-SIT is a useful, validated and easy to apply tool for screening OD
among patients with COVID-19.