Suitability of the odor stick identification test for the Japanese in patients suffering from olfactory disturbance.
We studied the suitability of the Odor Stick Identification Test for the Japanese (OSIT-J) in patients suffering from olfactory disturbance. In 120 patients with olfactory disturbance (age range 12-85 years) there were statistically significant correlations between the odor identification rate on the OSIT-J, the results of the Japanese standardized olfactory test (T&T olfactometry) and subjective symptom scores. In every patient treated for olfactory disturbance, the OSIT-J reflected the grade of recovery from the olfactory disturbance as determined by means of T&T olfactometry. The odor identification rate on the OSIT-J also correlated significantly with the results of the i.v. Alinamin test. Regarding the rate of correct recognition of odors on the OSIT-J, menthol and curry odors were recognized with a high rate and orange and wood odors with a low rate. Although the OSIT-J includes 13 kinds of odorants, the number of odorants used can be reduced to a minimum of 5 as the results obtained with this reduced form of the OSIT-J also correlated with the results of T&T olfactometry and the subjective symptom scores as well as with the results obtained with the 13-odorant OSIT-J. We conclude that the OSIT-J is suitable not only as a screening test for olfactory disturbance but also for practical use in clinical otorhinolaryngology.
Kobayashi
Masayoshi
M
Department of Otorhinolaryngology, Mie University School of Medicine, Tsu, Mie, Japan.
Nishida
Kohei
K
Nakamura
Satoshi
S
Oishi
Maaya
M
Shiozaki
Takaya
T
Majima
Yuichi
Y
Maeda
Taro
T
Furuta
Shigeru
S
Takashima
Yasuhiro
Y
Saito
Sachiko
S
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D004192:Discrimination, Psychological / Q000502:physiology*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009812:Odorants; D000857:Olfaction Disorders / Q000175:diagnosis* / Q000209:etiology; D012044:Regression Analysis; D012903:Smell / Q000502:physiology*