{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:43:00Z","timestamp":1784248980655,"version":"3.55.0"},"reference-count":19,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2016,6,14]],"date-time":"2016-06-14T00:00:00Z","timestamp":1465862400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Laryngoscope"],"published-print":{"date-parts":[[2016,12]]},"abstract":"<jats:sec><jats:title>Objectives\/Hypothesis<\/jats:title><jats:p>Estimate the incidence rate and provide basic descriptive epidemiologic characteristics of plunging ranulas in a multi\u2010ethnic population.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Case series with chart review.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The study group comprised all Counties Manukau Health (CMH, Manukau City, Auckland, New Zealand) patients presenting to the CMH Department of Otolaryngology with a diagnosis of plunging ranula from January 2001 to December 2013, as recorded in the departmental case register. Non\u2010CMH domicile patients were excluded. South Auckland comprised the base population, as serviced by CMH. The 2006 New Zealand census data was used for population demographics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 134 cases of plunging ranula were identified. The overall annual crude incidence rate was 2.4 per 100,000 person\u2010years. The gender specific incidence rate for males was 3.2 per 100,000 (95% confidence interval [CI]: 2.5. 3.9) and for females was 2.0 per 100,000 (95% CI: 1.5, 2.6). The overall age\u2010adjusted annual incidence rate was 2.6 per 100,000 (95% CI: 2.1, 3.0). The age\u2010adjusted incidence was highest among Maori (6.7 per 100,000, 95% CI 4.9, 8.4), followed by Pacific Island (4.4 per 100,000, 95% CI 3.2, 5.6), Asian (0.7 per 100,000, 95% CI 0.2, 1.2), and European population (0.6 per 100,000, 95% CI 0.3, 0.8).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>We have quantified for the first time the age\u2010specific and age\u2010adjusted incidence rates for plunging ranula by gender and ethnicity. The results show a likely underlying genetic predisposition for this condition, possibly with a superimposed environmental acquired factor relating to external, minor blunt trauma to the neck.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>4. <jats:italic>Laryngoscope<\/jats:italic>, 126:2739\u20132743, 2016<\/jats:p><\/jats:sec>","DOI":"10.1002\/lary.26088","type":"journal-article","created":{"date-parts":[[2016,6,14]],"date-time":"2016-06-14T09:50:57Z","timestamp":1465897857000},"page":"2739-2743","source":"Crossref","is-referenced-by-count":23,"title":["The epidemiology of plunging ranula in South Auckland"],"prefix":"10.1002","volume":"126","author":[{"given":"Seung Joon","family":"Chin","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery Counties Manukau Health Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irene S. L.","family":"Zeng","sequence":"additional","affiliation":[{"name":"Research and Evaluation Office, Health Intelligent and Informatics Ko Awatea Counties Manukau Health Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Randall P.","family":"Morton","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery Counties Manukau Health Auckland New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,6,14]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/hed.21326"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.1800740426"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2006.04.032"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1054\/bjom.2001.0621"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tripleo.2004.01.013"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tripleo.2008.09.023"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijporl.2005.10.022"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-0347(199801)20:1<63::AID-HED10>3.0.CO;2-Q"},{"key":"e_1_2_7_10_1","first-page":"108","article-title":"A surgical approach to the sublingual salivary gland","volume":"76","author":"Yates C","year":"1994","journal-title":"Ann R Coll Surg Engl"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/ca.22212"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00330\u2010009\u20101666\u20101"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-0503(82)80013-1"},{"key":"e_1_2_7_14_1","unstructured":"Statistics New Zealand 2006 Census: District Health Board Area Summary. 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