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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A mobile app-based olfactory screening test achieved an area under the curve of 0.87, with sensitivity of 74% and specificity of 86%.
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The study enrolled 484 adults, with a mean age of 53.4 years, and 15% reported subjective olfactory dysfunction.
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Participants with self-reported olfactory dysfunction scored significantly lower on the test compared to those with normal olfactory function.
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The test utilized a five-item smell identification format with rub-and-sniff scent cards, completed in an average of 142 seconds.
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The study's limitations include single-center design, reduced sample size for diagnostic accuracy, and focus solely on odor identification.

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