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Reliability of the 100 mL water swallow test in patients with head and neck cancer and healthy subjects
Author(s) -
Vermaire Jorine A.,
Terhaard Chris H. J.,
Verdonckde Leeuw Irma M.,
Raaijmakers Cornelis P. J.,
Speksnijder Caroline M.
Publication year - 2021
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.26723
Subject(s) - intraclass correlation , dysphagia , medicine , head and neck cancer , reliability (semiconductor) , head and neck , radiation therapy , cancer , standard error , surgery , nuclear medicine , physical therapy , psychometrics , clinical psychology , power (physics) , statistics , physics , mathematics , quantum mechanics
Background Dysphagia may occur in up to 44% of patients with head and neck cancer (HNC) treated with radiation therapy and up to 84% of patients treated with surgery. To test the extent of dysphagia, the 100 mL water swallow test (WST) was developed. In this study, reliability of the 100 mL WST was determined in patients with HNC and healthy subjects. Methods Thirty‐three patients and 40 healthy subjects performed the WST twice on the same day. To assess reliability, the intraclass correlation coefficient (ICC 2,1 ), standard error of measurement, smallest detectable change, and limits of agreement were calculated. Results Good to excellent correlations were found for patients with HNC (number of swallows; ICC = 0.923, duration; ICC = 0.893), and excellent correlations for healthy subjects (number of swallows; ICC = 0.950, duration; ICC = 0.916). Conclusion The 100 mL WST has a good to excellent reliability in patients with HNC and healthy subjects.