Smell Screening With a Mobile Test
Researchers evaluated a rapid, self-administered mobile application–based test designed to screen for olfactory dysfunction in adult participants.
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By
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Kathryn Wighton
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February 5, 2026
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Objective:
To evaluate the diagnostic performance of a novel mobile application-based olfactory screening test.
Approach:
Key Findings:
- The mobile test achieved an area under the curve of 0.87.
- Sensitivity was 74% and specificity was 86%.
- Participants with self-reported olfactory dysfunction scored significantly lower (2.54) than those without (3.50).
- Test performance declined with increasing age.
Interpretation:
The novel olfactory screening tool is rapid, reliable, and correlates well with validated psychophysical tests.
Limitations:
- Conducted at a single center, limiting generalizability.
- Only a subset of participants completed the comparator test, reducing sample size for accuracy analyses.
- Different optimal cut points for test sets indicate they are not interchangeable.
- The test only assessed odor identification, not other olfactory functions.
Conclusion:
The study suggests the mobile olfactory screening test is a promising tool for identifying olfactory dysfunction.
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