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Submitted: 06.04.2020 * Revision Received: 05.07.2020 * Accepted: 07.10.2020 Available online at www.advancedotology.org
ORCID iDs of the authors: M.H. 0000-0003-4905-8222; K.D.L. 0000-0002-5386-4051; H.G. 0000-0001-5989-0309; B.D. 0000-0002-4298-3354.
Cite this article as: Hildebrandt ME, Larsen KD,Glad H, Djurhuus BD. Validity and Test-Retest Reliability of the translated Stapesplasty OutcomeTest 25 for Measurement of Disease-Specific Quality of Life in Danish Patients with Otosclerosis. J Int AdvOtol 2020; 16(3): 358-61.
OBJECTIVES: To assess the validity and test-retest reliability of the Danish Stapesplasty OutcomeTest 25 (SPOT-25) version.
MATERIALS and METHODS: The German SPOT-25 questionnaire-consisting of 25 questions within the subscores "hearing function,""tinnitus," "mental condition,""social restrictions," and "general quality of life," found to be significant in terms of health-related quality of life in patients with otosclerosis-was translated into Danish in a three-step process according to the guidelines provided by the International Collegium of Rehabilitative Audiology. In total, 35 patients with otosclerosis were included as cases and 35 individuals without ear-problems as controls. The SPOT-25 questionnaire was filled out once by the patients and twice by the controls. Pure tone average (0.5,1,2, and 3 kHz) (PTA4) was obtained for cases.
RESULTS:The SPOT-25 clearly discriminated the individuals with otosclerosis from con-trols within all subscores (p<0.001).The internal consistency within the subscores was good to excellent with Cronbach alpha values of 0.85-0.95.The reproducibility (estimated by the control group) was moderate to high, with an intraclass correlation of 0.58-0.94 within the subscores. Although the SPOT-25 subscores within "hearing" and "social restrictions" showed a moderate correlation with PTA4 (Pearson correlation coefficient 0.51 and 0.42, respectively), this was not the case for the subscores regarding "tinnitus,""mental condition,"and the "general."
CONCLUSION: The SPOT-25 questionnaire can be used as a valuable complement to audiometric data in patients with otosclerosis, especially for estimating factors such as tinnitus and "mental condition," which do not correlate with the audiometric data.
KEYWORDS: Otosclerosis, stapes surgery, health-related quality of life
INTRODUCTION
Otosclerosis is a common cause of acquired hearing disability, leading to communication deficits and social and psychological restrictionsm.
In the assessment of healthcare, patient-based measuring instruments regarding the quality of life (QOL) and perceived handicap have become increasingly important for securing a high quality of treatment B1. Hearing impairment has been associated with adverse psychosocial effects, including decreased QOL and well-being, poorer mood, depression,...