{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T19:38:36Z","timestamp":1790624316473,"version":"4.1.0"},"reference-count":28,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,12,8]],"date-time":"2021-12-08T00:00:00Z","timestamp":1638921600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Laryngoscope Investig Oto"],"published-print":{"date-parts":[[2022,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate the incidence of middle ear cholesteatoma surgery and assess trends in mastoidectomy procedures in Australia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study design<\/jats:title><jats:p>Cross\u2010sectional population\u2010based study using data from the National Hospital Morbidity Database.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Admitted care episodes containing the principal diagnosis of middle ear cholesteatoma were analyzed for two 12\u2010month periods of 2007\u20132008 and 2017\u20132018. Surgical admissions involving mastoidectomy were identified by procedure codes. Incidence rate per 100,000 person\u2010years were compared between study periods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of the 3855 middle ear cholesteatoma admissions, 3558 (92.3%) involved surgery, with the incidence rate for cholesteatoma surgical admissions estimated at 8.6 per 100,000 (95% CI: 8.2\u20139.0) and 8.1 per 100,000 (95% CI: 7.7\u20138.5) for 2017\u20132018 and 2007\u20132008, respectively. Population aged 10\u201319\u2009years had the highest age\u2010specific incidence rate at 12.5 per 100,000 (95% CI: 11.3\u201313.9) for 2017\u20132018. The 60\u2009years and over age groups had the highest decennial percentage increase. Mastoidectomy procedures were consistently used in over half of all surgical admissions. An increase in the rate of canal wall up (CWU) mastoidectomy procedure related admissions was observed (rate ratio of 1.62 [95%CI: 1.41\u20131.86], <jats:italic>P<\/jats:italic> &lt;.001) and was offset by a decreased rate of canal wall down (CWD) procedure associated admissions (0.69 [95% CI: 0.61\u20130.78], <jats:italic>P<\/jats:italic> &lt;.001]).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The incidence rate of cholesteatoma surgery in Australia is estimated at 8.6 per 100,000. Mastoidectomy continues to play an essential role in cholesteatoma surgery with a trend favoring CWU over CWD mastoidectomy.<\/jats:p><jats:p><jats:bold>Level of evidence:<\/jats:bold> 4<\/jats:p><\/jats:sec>","DOI":"10.1002\/lio2.709","type":"journal-article","created":{"date-parts":[[2021,12,8]],"date-time":"2021-12-08T10:49:34Z","timestamp":1638960574000},"page":"210-218","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Incidence and trends of middle ear cholesteatoma surgery and mastoidectomy in Australia\u2014A national hospital morbidity database analysis"],"prefix":"10.1002","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4142-5684","authenticated-orcid":false,"given":"Jonathan","family":"Li","sequence":"first","affiliation":[{"name":"Division of Otolaryngology Head &amp; Neck Surgery Royal North Shore Hospital  Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3962-0819","authenticated-orcid":false,"given":"Nicholas","family":"Jufas","sequence":"additional","affiliation":[{"name":"Division of Otolaryngology Head &amp; Neck Surgery Royal North Shore Hospital  Sydney New South Wales Australia"},{"name":"Discipline of Surgery, Sydney Medical School University of Sydney  Sydney New South Wales Australia"},{"name":"Department of Otolaryngology \u2013 Head &amp; Neck Surgery, Faculty of Medicine and Health Sciences Macquarie University  Sydney New South Wales Australia"},{"name":"Kolling Deafness Research Centre, Royal North Shore Hospital Macquarie University and University of Sydney  Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6283-3970","authenticated-orcid":false,"given":"Martin","family":"Forer","sequence":"additional","affiliation":[{"name":"Division of Otolaryngology Head &amp; Neck Surgery Royal North Shore Hospital  Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8767-6174","authenticated-orcid":false,"given":"Nirmal","family":"Patel","sequence":"additional","affiliation":[{"name":"Division of Otolaryngology Head &amp; Neck Surgery Royal North Shore Hospital  Sydney New South Wales Australia"},{"name":"Discipline of Surgery, Sydney Medical School University of Sydney  Sydney New South Wales Australia"},{"name":"Department of Otolaryngology \u2013 Head &amp; Neck Surgery, Faculty of Medicine and Health Sciences Macquarie University  Sydney New South Wales Australia"},{"name":"Kolling Deafness Research Centre, Royal North Shore Hospital Macquarie University and University of Sydney  Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,12,8]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-014-3291-0"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/lary.25591"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1159\/000346140"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijporl.2009.05.010"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/lary.24633"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.wjorl.2017.08.001"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otc.2020.09.023"},{"key":"e_1_2_11_9_1","unstructured":"Australian Institute of Health and Welfare.Data quality statement: admitted Patient Care 2017\u201318.https:\/\/meteor.aihw.gov.au\/content\/index.phtml\/itemId\/724188. 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