A Pilot Study of the Snap & Sniff Threshold Test

The Annals of Otology, Rhinology, and Laryngology
Rong-San Jiang, Kai-Li Liang

Abstract

The Snap & Sniff® Threshold Test (S&S) has been recently developed to determine the olfactory threshold. The aim of this study was to further evaluate the validity and test-retest reliability of the S&S. The olfactory thresholds of 120 participants were determined using both the Smell Threshold Test (STT) and the S&S. The participants included 30 normosmic volunteers and 90 patients (60 hyposmic, 30 anosmic). The normosmic participants were retested using the STT and S&S at an intertest interval of at least 1 day. The mean olfactory threshold determined with the S&S was -6.76 for the normosmic participants, -3.79 for the hyposmic patients, and -2 for the anosmic patients. The olfactory thresholds were significantly different across the 3 groups ( P < .001). Snap & Sniff-based and STT-based olfactory thresholds were correlated weakly in the normosmic group (correlation coefficient = 0.162, P = .391) but more strongly correlated in the patient groups (hyposmic: correlation coefficient = 0.376, P = .003; anosmic: correlation coefficient = 1.0). The test-retest correlation for the S&S-based olfactory thresholds was 0.384 ( P = .036). Based on validity and test-retest reliability, we concluded that the S&S is a proper test for olfac...Continue Reading

References

Dec 28, 2002·Chemical Senses·Toshiaki TsukataniRichard M Costanzo
Apr 3, 2004·Perceptual and Motor Skills·Thomas J Wudarski, Richard L Doty
Nov 27, 2004·Otolaryngologic Clinics of North America·Bozena B Wrobel, Donald A Leopold
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Sep 18, 2009·Chemical Senses·Antje HaehnerThomas Hummel
Mar 19, 2015·American Journal of Rhinology & Allergy·Rong-San Jiang, Kai-Li Liang

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Citations

Dec 24, 2021·Chemical Senses·Thomas Hummel, Dino Podlesek
Jan 8, 2022·The Journal of International Medical Research·Rong-San JiangKai-Hsiang Shih

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