Influence of random answers on interpretation of the Sniffin' Stick identification test in nasal polyposis.
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Date publication
novembre 2014
Auteurs
Membres identifiés du Cancéropôle Est :
Pr JANKOWSKI Roger
Tous les auteurs :
Eluecque H, Trung Nguyen D, Jankowski R
Lien Pubmed
Résumé
OBJECTIVE: The Sniffin' Stick identification subtest, a validated tool to evaluate the sense of smell, is based on the recognition of 16 different odours. The patient is required to choose an answer from among four proposed odours, which introduces the possibility of obtaining random correct answers, especially in patients with an altered sense of smell. This study was designed to evaluate the influence of these random correct answers on interpretation of the simplified version of the Sniffin' Stick test comprising threshold and identification tests in patients with nasal polyposis. MATERIALS AND METHODS: Forty-two consecutive patients with nasal polyposis operated according to the nasalization procedure were enrolled in this prospective study. Odour threshold and identification tests of the Sniffin' Stick kit were performed before and 1 month after surgery. Random correct answers on the identification (I) test (IH) were subtracted from the global number of correct answers (IG) to calculate a real identification score (IR), corresponding to the number of correct answers unrelated to chance. RESULTS: Two groups of patients were identified: one group with no random correct answers (IH0) (n=17) and another group giving 1 to 7 random correct answers (IH1-7) (n=25). In the IH1-7 group, significantly more patients had an immeasurable threshold (T=0) than a measurable threshold (21 versus 4, P=0.0001). In this subgroup of 21 patients [IH1-7, T=0], the mean IR score was significantly lower than the mean IG score (P
Référence
Eur Ann Otorhinolaryngol Head Neck Dis. 2014 Nov 12. pii: S1879-7296(14)00163-X. doi: 10.1016/j.anorl.2013.07.002.