1. Validation of a Novel Allergy-Specific Domain for the 22-Item Sino-Nasal Outcomes Test.
- Author
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Feng AY, Kim M, Prince AA, Corrales CE, Li A, Willard E, Forrester CA, Piccirillo J, and Shin JJ
- Subjects
- Humans, Reproducibility of Results, Quality of Life, Surveys and Questionnaires, Chronic Disease, Rhinitis diagnosis, Rhinitis surgery, Sinusitis diagnosis, Sinusitis surgery, Rhinitis, Allergic diagnosis, Nasal Obstruction
- Abstract
Objectives: To develop and assess the validity of a novel allergy-specific domain for the 22-item sino-nasal outcomes test (SNOT-22), to provide a new tool that efficiently quantifies the impact of allergic rhinitis (AR) concurrent with chronic rhinosinusitis., Study Design: Prospective validation study., Setting: Tertiary care hospital and community-based clinic., Methods: Proposed items were developed based on clinician and patient input, and further assessed via factor analysis and for internal consistency (n = 1987). Items were then additionally assessed for convergent and discriminant validity (n = 415), applying data from concurrent completions of the Nasal Obstruction and Septoplasty Effectiveness Scale (NOSE), Mini-Rhinoconjunctivitis Quality-of-Life Questionnaire (MiniRQLQ), and validated global health assessments. Assessments of intra-rater reliability, responsiveness to change, and qualitative input were also performed., Results: Factor analysis demonstrated that proposed allergy items mapped to a single domain. Items were internally consistent (Cronbach α: 0.80 within domain, 0.91 within all SNOT). In assessments of convergent validity, domain scores were associated with MiniRQLQ (Spearman's ρ: 0.46, 95% confidence interval [CI]: 0.30-0.59) and NOSE scores (0.36, 95% CI: 0.27-0.44). The novel items also discriminated among clinical states: a 1-point increase in domain score was associated with an 8.32 (95% CI: 5.43-12.75) increase in the odds of prompting a visit for allergy-related symptoms and a 1.52 (95% CI: 1.13-2.05) increase in the odds of positive allergy testing. Intra-rater reliability was substantial (Cohen's κ: 0.8, 95% CI: 0.8-0.9), and responsiveness to change was demonstrated (mean difference: -0.6, 95% CI: -0.8 to -0.4)., Conclusions: This novel domain is a valid, efficient measure of AR alongside rhinosinusitis., (© 2023 American Academy of Otolaryngology-Head and Neck Surgery Foundation.)
- Published
- 2024
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