Italian version of the Brief Questionnaire of Olfactory Disorders (Brief-IT-QOD).

Abstract

Objective:

To evaluate the reliability and validity of the Italian version of the Brief Questionnaire of Olfactory Disorders (Brief-IT-QOD).

Methods:

The study consisted of six phases: item generation, reliability analysis (112 dysosmic patients for internal consistency analysis and 61 for test-retest reliability analysis), normative data generation (303 normosmic subjects), validity analysis (comparison of Brief-IT-QOD scores of healthy and dysosmic subjects and scores correlation with psychophysical olfactory testing TDI and SNOT-22 scores), responsiveness analysis (10 dysosmic chronic rhinosinusitis with nasal polyps patients before and after biologic therapy), and cut-off value determination (ROC curve analysis of Brief-IT-QOD sensitivity and specificity).

Results:

All subjects completed the Brief-IT-QOD. Internal consistency (α > 0.70) and test-retest reliability (ICC > 0.7) were acceptable and satisfactory for both questionnaire subscales. A significant difference between dysosmic and control subjects was found in both subscales (p < 0.05). Significant correlations between subscales scores and TDI and SNOT-22 scores were observed. Brief-IT-QOD scores before treatment were significantly higher than after biological therapy.

Conclusions:

Brief-IT-QOD is reliable, valid, responsive to changes in QoL, and recommended for clinical practice and outcome research.

• Authors: Arianna Cardella, Giuseppe Riva, Andrea Preti, Andrea Albera, Livio Luzi, Roberto Albera, Davide Cadei, Gian Marco Motatto, Filippo Omenetti, Giancarlo Pecorari, Francesco Ottaviani, Francesco Mozzanica
• Journal: Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale (Acta Otorhinolaryngol Ital) Vol. 43 Issue 4 Pg. 252-261 (Aug 2023) ISSN: 1827-675X [Electronic] Italy
• PMID: 37224170 (Publication Type: Journal Article)
• Copyright: Copyright © 2023 Società Italiana di Otorinolaringoiatria e Chirurgia Cervico-Facciale, Rome, Italy.

Topics

• Humans
• Quality of Life
• Reproducibility of Results
• Rhinitis (complications, diagnosis)
• Olfaction Disorders (diagnosis)
• Surveys and Questionnaires
• Italy