{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T20:59:37Z","timestamp":1740171577234,"version":"3.37.3"},"reference-count":17,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,9,7]],"date-time":"2017-09-07T00:00:00Z","timestamp":1504742400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Otolaryngology"],"published-print":{"date-parts":[[2018,2]]},"abstract":"Objective<\/jats:title>Development of the \u2018Otology Questionnaire Amsterdam\u2019 (OQUA<\/jats:styled-content>), a patient reported outcome measure (PROM<\/jats:styled-content>), measuring the severity and impact of ear complaints of patients visiting an ENT<\/jats:styled-content> surgeon.<\/jats:p><\/jats:sec>Design<\/jats:title>Multicenter, cross\u2010sectional study. Phase 1: qualitative research<\/jats:italic>. In\u2010depth interviews (N\u00a0=\u00a016) to identify relevant types of ear complaints and to formulate items. Pilot study of the first and second draft of the OQUA<\/jats:styled-content> (N\u00a0=\u00a032, N\u00a0=\u00a039). Phase 2: quantitative research<\/jats:italic>. Field\u2010testing of the OQUA<\/jats:styled-content> (N\u00a0=\u00a0352). Item reduction based on inter\u2010item correlation, factor analysis and expert opinion.<\/jats:p><\/jats:sec>Setting<\/jats:title>Two secondary and two tertiary ENT<\/jats:styled-content> clinics.<\/jats:p><\/jats:sec>Participants<\/jats:title>Patients over the age of sixteen visiting an ENT<\/jats:styled-content> surgeon with an ear complaint.<\/jats:p><\/jats:sec>Main outcome measures<\/jats:title>Phase 1<\/jats:italic>: meaning units and frequency of selected descriptions. Phase 2<\/jats:italic>: inter\u2010item correlation, factor loading and Cronbach's Alpha (\u03b1).<\/jats:p><\/jats:sec>Results<\/jats:title>Phase 1<\/jats:italic>: eight relevant types of ear complaints were identified: earache, pressure in ear, hearing loss, tinnitus, otorrhoea, itch, dizziness and loss of taste. Phase 2<\/jats:italic>: factor analysis generated a factor \u2018impact\u2019 (\u03b1\u00a0=\u00a00.913). The current version of the OQUA<\/jats:styled-content> consists of 34 items, covers eight types of ear complaints and consists of two constructs: complaints and impact.<\/jats:p><\/jats:sec>Conclusion<\/jats:title>The OQUA<\/jats:styled-content> is a generic, otologic PROM<\/jats:styled-content> designed to evaluate the severity of ear complaints and their impact on patients lives.<\/jats:p><\/jats:sec>","DOI":"10.1111\/coa.12950","type":"journal-article","created":{"date-parts":[[2017,8,3]],"date-time":"2017-08-03T23:24:52Z","timestamp":1501802692000},"page":"240-248","source":"Crossref","is-referenced-by-count":12,"title":["The Otology Questionnaire Amsterdam: a generic patient reported outcome measure about the severity and impact of ear complaints. 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