Patient-reported outcome measures (PROMs) for assessing perceived listening effort in hearing loss: protocol for a systematic review

Introduction

In the UK, it is estimated that a disabling hearing loss (HL) affects 1 in 6 people. HL has functional, economic and social-emotional consequences for affected individuals. Intervention for HL focuses on improving access to the auditory signal using hearing aids or cochlear implants. However, even if sounds are audible and speech is understood, individuals with HL often report increased effort when listening.

Listening effort (LE) may be measured using self-reported measures such as patient-reported outcome measures (PROMs). PROMs are validated questionnaires completed by patients to measure their perceptions of their own functional status and well-being. When selecting a PROM for use in research or clinical practice, it is necessary to appraise the evidence of a PROM's acceptability to patients, validity, responsiveness and reliability.

Methods and analysis

A systematic review of studies evaluating the measurement properties of PROMs available to measure LE in HL will be undertaken. MEDLINE, EMBASE, CINAHL, PsychINFO and Web of Science will be searched electronically. Reference lists of included studies, key journals and the grey literature will be hand-searched to identify further studies for inclusion. Two reviewers will independently complete title, abstract and full-text screening to determine study eligibility. Data on the characteristics of each study and each PROM will be extracted. Methodological quality of the included studies will be appraised using the COnsensus-based Standards for the selection of health Measurement INstruments, the quality of included PROMs appraised and the credibility of the evidence assessed. A narrative synthesis will summarise extracted data.

Ethics and dissemination

Ethical permission is not required, as this study uses data from published research. Dissemination will be through publication in peer-reviewed journals, conference presentations and the lead author's doctoral dissertation. Findings may inform the selection of PROMs used to measure LE in HL.

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