1. A mobile, self-administered smell test accurately screened for olfactory dysfunction (AUC, 0.87).
2. Sensitivity was 74% and specificity was 86% vs a validated psychophysical test.
3. Scores were lower in participants with self-reported smell loss and declined with age.
4. The test required about 2 minutes to complete, supporting clinical feasibility.
5. Performance varied by test version, supporting use as a screening—not diagnostic—tool.

Source: JAMA Otolaryngology – Head & Neck Surgery