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Association between subjective tinnitus and cognitive performance: protocol for systematic review and meta-analysis
  1. Nathan A Clarke1,2,3,
  2. Michael A Akeroyd1,3,
  3. Helen Henshaw2,
  4. Derek J Hoare2
  1. 1 Medical Research Council Institute of Hearing Research, School of Medicine, The University of Nottingham, University Park, Nottingham, UK
  2. 2 National Institute of Health Research Nottingham Biomedical Research Centre, Nottingham, UK
  3. 3 Hearing Sciences, Division of Clinical Neurosciences, School of Medicine, The University of Nottingham, University Park, Nottingham, UK
  1. Correspondence to Mr Nathan A Clarke; nathan.clarke{at}nottingham.ac.uk

Abstract

Introduction Subjective tinnitus is very common and has a number of comorbid associations including depression, sleep disturbance and concentration difficulties. Concentration difficulties may be observable in people with tinnitus through poorer behavioural performance in tasks thought to measure specific cognitive domains such as attention and memory (ie, cognitive performance). Several reviews have discussed the association between tinnitus and cognition; however, none to date have investigated the association between tinnitus and cognitive performance through meta-analysis with reference to an established theoretical taxonomy. Furthermore, there has been little overlap between sets of studies that have been included in previous reviews, potentially contributing to the typically mixed findings that are reported.

Methods and analysis This systematic review aims to comprehensively review the literature using an established theoretical taxonomy and quantitatively synthesise relevant data to determine associations between subjective tinnitus and cognitive performance. Methods are reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols. All study designs will be eligible for inclusion with no date restrictions on searches. Studies eligible for inclusion must contain adult participants (≥18 years) with subjective tinnitus and a behavioural measure of cognitive performance. Meta-analysis will be reported via correlation for the association between tinnitus and cognitive performance.

Ethics and dissemination No ethical issues are foreseen. Findings will be reported in a student thesis, at national and international , ear, nose and throat/audiology conferences and by peer-reviewed publication.

PROSPERO registration number CRD42018085528.

  • tinnitus
  • cognition
  • memory
  • audiology
  • attention
  • ent

This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: https://creativecommons.org/licenses/by/4.0/.

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Footnotes

  • Contributors NAC led on the development of all sections of the review protocol. DJH, HH and MAA developed and provided feedback for all sections of the review protocol and approved the final manuscript.

  • Funding NAC is supported by a Medical Research Council studentship. MAA is supported by the Medical Research Council (grant number MC_UU_00010/3). HH and DJH are funded by the National Institute for Health Research (NIHR) Biomedical Research Centre programme.

  • Disclaimer The views expressed are those of the authors and not necessarily those of the NIHR, the NHS or the Department of Health and Social Care.

  • Competing interests None declared.

  • Patient consent Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement There are no data currently available.

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