{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,7]],"date-time":"2026-02-07T13:50:33Z","timestamp":1770472233313,"version":"3.49.0"},"reference-count":16,"publisher":"BMJ","issue":"1","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2014,11,20]]},"published-print":{"date-parts":[[2015,1]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>There is some debate as to what extent epidemiological data for the prevalence of childhood tinnitus can be relied on. While indications are that the prevalence is relatively high, referral numbers for children with tinnitus are reported to be low and many of the studies have a number of methodological difficulties. We describe the protocol of a systematic review aimed at assessing the prevalence of tinnitus and\/or hyperacusis in children and young people.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and analysis<\/jats:title>\n                    <jats:p>We will include studies of any design (except case reports or case series) comparing the prevalence of tinnitus and\/or hyperacusis in children and young people with and without hearing loss, any known external exposure and psychological disorders. We will search the following databases: PubMed, EMBASE and Scopus. No restrictions of language will be applied in the search strategy but during the article selection language is limited to English, German and Scandinavian languages. Primary and additional outcomes will be the prevalence of tinnitus\/hyperacusis and the severity, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Ethics and dissemination<\/jats:title>\n                    <jats:p>No ethical issues are foreseen. The results will be published in a peer-reviewed journal and presented at national and international conferences of audiology and paediatrics.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trail registration number<\/jats:title>\n                    <jats:p>This review protocol is registered in the PROSPERO International Prospective Register of Systematic Reviews, registration number CRD42014013456.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2014-006649","type":"journal-article","created":{"date-parts":[[2015,1,6]],"date-time":"2015-01-06T21:58:33Z","timestamp":1420581513000},"page":"e006649","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":16,"title":["Prevalence of tinnitus and\/or hyperacusis in children and adolescents: study protocol for a systematic review"],"prefix":"10.1136","volume":"5","author":[{"given":"Susanne Steen","family":"Nemholt","sequence":"first","affiliation":[{"name":"Institute of Clinical Research, University of Southern Denmark, and The Social Enterprise, The Capital Region of Denmark, Copenhagen, Denmark"},{"name":"Department of Audiology, Odense University Hospital, Odense, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jesper Hvass","family":"Schmidt","sequence":"additional","affiliation":[{"name":"Institute of Clinical Research, University of Southern Denmark, and The Social Enterprise, The Capital Region of Denmark, Copenhagen, Denmark"},{"name":"Department of Audiology, Odense University Hospital, Odense, Denmark"},{"name":"Department of ENT Head and Neck Surgery, Odense University Hospital, Odense, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Niels","family":"Wedderkopp","sequence":"additional","affiliation":[{"name":"Orthopedic Department, Sport Medicine Clinic, Hospital of Lillebaelt Institute of Regional Health Service Research, Odense, Denmark"},{"name":"Center for Research in Childhood Health University of Southern Denmark, Odense, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David M","family":"Baguley","sequence":"additional","affiliation":[{"name":"Department of Audiology, Cambridge University Hospitals, Cambridge, UK"},{"name":"Department of Hearing and Vision Sciences, Anglia Ruskin University, Cambridge, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2015,1,5]]},"reference":[{"key":"2025121601125720000_5.1.e006649.1","doi-asserted-by":"publisher","DOI":"10.1044\/1092-4388(2005\/084)"},{"key":"2025121601125720000_5.1.e006649.2","unstructured":"McCormack A , Edmondson-Jones M , Wadsworth S , et al . A systematic review of the prevalence of tinnitus. Poster Presentation at the IX International Tinnitus Seminar; Berlin, 2014."},{"key":"2025121601125720000_5.1.e006649.3","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(13)60142-7"},{"key":"2025121601125720000_5.1.e006649.4","doi-asserted-by":"crossref","unstructured":"Coelho CB . Epidemiology of tinnitus in children . Chapter 6, In: Moller AR , ed. Textbook of Tinnitus. Springer, 2010:39\u201344.","DOI":"10.1007\/978-1-60761-145-5_6"},{"key":"2025121601125720000_5.1.e006649.5","doi-asserted-by":"publisher","DOI":"10.3109\/03005369309077884"},{"key":"2025121601125720000_5.1.e006649.6","first-page":"49","article-title":"Phonophobia and hyperacusis: practical points from a case report","volume":"17","author":"Asha'ari","year":"2010","journal-title":"Malays J Med Sci"},{"key":"2025121601125720000_5.1.e006649.7","doi-asserted-by":"publisher","DOI":"10.1016\/S0079-6123(07)66015-4"},{"key":"2025121601125720000_5.1.e006649.8","doi-asserted-by":"publisher","DOI":"10.1258\/jrsm.96.12.582"},{"key":"2025121601125720000_5.1.e006649.9","doi-asserted-by":"publisher","DOI":"10.1016\/S0079-6123(07)66001-4"},{"key":"2025121601125720000_5.1.e006649.10","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1016\/j.pneurobio.2013.08.002","article-title":"Advances in the neurobiology of hearing disorders: recent developments regarding the basis of tinnitus and hyperacusis","volume":"111","author":"Knipper","year":"2013","journal-title":"Prog Neurobiol"},{"key":"2025121601125720000_5.1.e006649.11","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1055\/s-0034-1372524","article-title":"Hyperacusis: an overview","volume":"35","author":"Baguley","year":"2014","journal-title":"Semin Hear"},{"key":"2025121601125720000_5.1.e006649.12","doi-asserted-by":"crossref","first-page":"24","DOI":"10.5935\/1808-8694.20140007","article-title":"Study of the relationship between the degree of tinnitus annoyance and the presence of hyperacusis","volume":"80","author":"Guimaraes","year":"2014","journal-title":"Braz J Otorhinolaryngol"},{"key":"2025121601125720000_5.1.e006649.13","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1016\/j.ijporl.2012.11.009","article-title":"Troublesome tinnitus in childhood and adolescence: data from expert centres","volume":"77","author":"Baguley","year":"2013","journal-title":"Int J Pediatr Otorhinolaryngol"},{"key":"2025121601125720000_5.1.e006649.14","unstructured":"Stouffer JL , Tyler RS , Booth JC , et al . Tinnitus in normal-hearing and hearing-impaired children. Tinnitus 91: Proceedings of the Fourth International Tinnitus Seminar; 1992."},{"key":"2025121601125720000_5.1.e006649.15","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.b2700"},{"key":"2025121601125720000_5.1.e006649.16","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.328.7454.1490"}],"container-title":["BMJ Open"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bmjopen-2014-006649","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,16]],"date-time":"2025-12-16T09:13:04Z","timestamp":1765876384000},"score":1,"resource":{"primary":{"URL":"https:\/\/bmjopen.bmj.com\/lookup\/doi\/10.1136\/bmjopen-2014-006649"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,1]]},"references-count":16,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2015,1,5]]},"published-print":{"date-parts":[[2015,1]]}},"alternative-id":["10.1136\/bmjopen-2014-006649"],"URL":"https:\/\/doi.org\/10.1136\/bmjopen-2014-006649","relation":{},"ISSN":["2044-6055","2044-6055"],"issn-type":[{"value":"2044-6055","type":"print"},{"value":"2044-6055","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,1]]}}}