TY - JOUR ID - 16437 TI - Predictors of Olfactory Impairment among Northern Iranian Population JO - Iranian Journal of Otorhinolaryngology JA - IJORL LA - en SN - 2251-7251 AU - Jalali, Mir Mohammad AU - Faghih Habibi, Ali AU - Ghorbani Samin, Mehdi AD - Otorhinolaryngology Research Center, Department of Otolaryngology and Head and Neck Surgery, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. AD - Guilan Legal Medicine Organization, Rasht, Iran. Y1 - 2020 PY - 2020 VL - 32 IS - 5 SP - 271 EP - 279 KW - Iran KW - Olfactory disorders KW - Olfactory perception KW - Smell KW - Smell identification test DO - 10.22038/ijorl.2019.40358.2325 N2 - Introduction: The performance in most smell identification tests is subjected to cultural variations. This study aimed to evaluate age, gender, and smoking-related effects on the test performance in the North of Iran.   Materials and Methods: The olfactory function of 1470 eligible subjects was assessed in this study. Moreover, this study evaluated the influence of age, gender, and education on the test scores.   Results: According to the results, females obtained higher mean test scores, compared to males (18.4 vs. 17.6). In general, the elderly obtained lower scores, and about 30% of the subjects who were ≥65 years of age had severe hyposmia or anosmia. Furthermore, the olfactory impairment frequency in smoker subjects was significantly more than non-smokers (P<0.001). Test scores were generally higher in subjects with higher education levels. Logistic regression analysis revealed that the total number of cigarette doses in smokers and age had a significant association with olfactory dysfunction (P value <0.001 and 0.004, respectively). Cronbach’s α of Iran-SIT was obtained at 0.78 which was more than an acceptable value of 0.7.   Conclusion: The findings of this study revealed that a low score in the Iran-SIT correlated with smoking, older age, low education level, and gender (male). UR - https://ijorl.mums.ac.ir/article_16437.html L1 - https://ijorl.mums.ac.ir/article_16437_98a03fd0e5da0fb07e3a2b59da71d4c4.pdf ER -