99 Quality assessment of patient reported outcome measures for patients with multiple ear complaints 5 OQUA to measure and evaluate severity and impact of ear complaints separately. They both need further work on interpretation and cross-cultural. None of the studies had an Item Response Theory (IRT) model. An IRT model contains all the questions in the PROM, but based on the previous answer(s), the model establishes a link and selects questions that are relevant for patients.31 An IRT would give a more precise value / score of a PROM and is potentially less time consuming for the patient. In order to set-up an IRT model, however, data of thousands of patients are needed for calibration making this a high hurdle. Conclusion Existing PROMs for patients with multiple ear complaints were evaluated according to the COSMIN criteria. Two types of multiple complaint questionnaires were identified and assessed; disease specific and ear domain specific. Depending on the certain need the presented work can facilitate the process of selecting the most suitable questionnaire for addressing specific issues and integration into healthcare facilities. If implementation of a PROM is considered, the authors advise to have a critical look at the design of the questionnaire. As it is of major importance, that besides proper validation, reliability and responsiveness, a PROM is actually measuring the problem you want to measure. For the majority of questionnaires, the quality assessment was inadequate as only a few questionnaires were developed after building a construct based on a broad consultation with patients in the target population (concept elicitation). Modifications of earlier versions of PROMS or combinations of multiple questionnaires lead to ongoing (cross-cultural) validation of these questionnaires albeit the mediocre design and validation. Most disease specific questionnaires cover Chronic Otitis Media and some are modifications of earlier versions or combinations of multiple questionnaires. The two domain specific questionnaires are the COQOL and OQUA, both with adequate quality but different focus. COOQL to quantify the quality of life and OQUA to measure and evaluate severity and impact of ear complaints.
RkJQdWJsaXNoZXIy MjY0ODMw