Published In

International Forum of Allergy & Rhinology

Document Type

Article

Publication Date

5-15-2025

Subjects

Cystic fibrosis -- Quality of life, Olfactory disorders, Paranasal sinuses -- Diseases

Abstract

Chronic rhinosinusitis (CRS) affects quality-of-life (QoL) in people with cystic fibrosis (PwCF), despite the reduction in symptoms and symptom severity associated with cystic fibrosis transmembrane conductance regulator (CFTR) modulators [1]. To precisely assess sinus symptoms and treatment needs in the post-modulator period, patient-related QOL instruments should be revisited. The 22-item SinoNasal Outcome Test (SNOT-22) measures CRS burden and QoL. Abbreviated surveys can lessen respondent fatigue. Item response theory (IRT) can help refine surveys by identifying the most informative survey items while maintaining reliability [2–4]. IRT assesses item discrimination (ɑ), the ability to differentiate trait levels, and difficulty (β), which defines thresholds for response categories [2–4].

Rights

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

© 2025 The Author(s). International Forum of Allergy & Rhinology published by Wiley Periodicals LLC on behalf of American Academy of Otolaryngic Allergy and American Rhinologic Society.

DOI

10.1002/alr.23591

Persistent Identifier

https://archives.pdx.edu/ds/psu/43898

Publisher

Wiley

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