• Songül Demir, Bilal Sizer, Aylin Gül, and İsmail Topçu.
• Department of Otorhinolaryngology Clinic, Mardin Public Hospital, Mardin, Turkey.
• Int. J. Clin. Pract. 2021 Sep 1; 75 (9): e14458.

BackgroundAlthough the "Sniffin' Sticks" test (SST) is a widely used odor test, aplicability of odor tests is limited because of the high cost of the test and the regional-cultural differentiation of odor recognition. We aimed to evaluate our regional odor norms by applying the SST with a Modified odor test (MOT) we created for this study, and to develop a test similar to the SST, which was less expensive and probably had a higher odor definition for our region.MethodsThis study includes 201 healthy volunteers: 91 men and 110 women over the age of 18 were included in the study. Tests were compared by applying the SST and MOT to all volunteers.ResultsIn all subjects, for the SST: the mean Threshold score (TS), Discrimination score (DS), and Identification score (IS) were, respectively, 10.73 ± 2.35, 11.11 ± 11.94 and 11.32 ± 2.15. TheTDI mean score was found to be 33.11 ± 5.9. In the TDI score, the 10th percentile value was found to be 26. For the MOT, the mean TS(mTS), DS(mDS), and IS(mIS) were 10.88 ± 2.31, 12 ± 2.06, and 11.95 ± 2.07, respectively, the modified test TDI(mTDI) mean was 34.68 ± 6.47. The mTDI 10th percentile value was found to be 26. In all volunteers, there was no statistically significant difference between the two tests for the mean threshold score, while the difference in the mean discrimination score, the average identification score, and the average TDI (thresold, discrimination, sum of identification scores) score was statistically significant (P < .01).ConclusionThis study is the first study to compare the SST and the MOT in our region. Making low-cost modifications by adding more probable smells to the smell tests and using them in studies involving more participants will be more meaningful in evaluating normative odor scores and will result in more widespread use.© 2021 John Wiley & Sons Ltd.

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