Quantifying Neck Fibrosis and Its Functional Implications: Development of the Neck Fibrosis Scale

Objective Despite increasing recognition of the importance of functional outcomes for patients with head and neck cancer, post‐treatment neck fibrosis remains poorly understood. We sought to develop and validate a patient reported outcome measure for head and neck cancer patients with neck fibrosis....

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Bibliographic Details
Published in:The Laryngoscope 2022-05, Vol.132 (5), p.1015-1021
Main Authors: Noel, Christopher W., Kwinter, Adam, Mifsud, Matthew, Ringash, Jolie, Waldron, John, Chepeha, Douglas B., Irish, Jonathan C., Martino, Rosemary, Gomes, Andrea, Aziza, Elana, Almeida, John R., Goldstein, David P.
Format: Article
Language:English
Subjects:
Cross-Sectional Studies
Fibrosis
Focus groups
Head & neck cancer
Head and neck cancer
Humans
Laryngoscopy
patient reported outcomes
Patients
Prospective Studies
Psychometrics
Quantitative psychology
Reproducibility of Results
Surveys and Questionnaires
survivorship
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Summary:Objective Despite increasing recognition of the importance of functional outcomes for patients with head and neck cancer, post‐treatment neck fibrosis remains poorly understood. We sought to develop and validate a patient reported outcome measure for head and neck cancer patients with neck fibrosis. Study Design Prospective multiphase cross‐sectional study. Methods To guide instrument development, we employed the World Health Organization International Classification of Functioning, Disability and Health as our conceptual framework. Items were generated using a composite strategy consisting of patient focus groups, literature review, and expert opinion from a multidisciplinary group. Candidate items were reduced through the item impact method. Preliminary psychometric properties of the finalized instrument were evaluated through measures of internal consistency, test–retest reliability, and construct validity. Results Four in person focus groups were held with 13 head and neck cancer patients. The process of item generation led to 221 relevant citations and 68 unique items. An additional 17 items were identified from review of existing neck disability questionnaires and expert opinion. A draft instrument with 25 candidate items was generated and reduced to its final 15‐item scale using item impact method. Early psychometric testing revealed excellent internal consistency (Cronbach's alpha = 0.95) and test–retest reliability [ICC = 0.95]. Internal consistency at the item level was good (>0.7) for 11/15 individual items. Four separate constructs were evaluated. Three of the four constructs matched our a priori hypotheses. Conclusion The Neck Fibrosis Scale demonstrates preliminary reliability and validity for discriminate use. Further research is needed to confirm dimensionality and assess responsiveness. Level of Evidence NA Laryngoscope, 132:1015–1021, 2022
ISSN:0023-852X
1531-4995
DOI:10.1002/lary.29897