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Fifty\u2010one studies with 11\u2009698 patients were included. ONM rates were 64% for salivary ductal carcinoma (SDC), 51% for undifferentiated carcinoma, 34% for carcinoma ex\u2010pleomorphic adenoma (CXPA), 32% for adenocarcinoma not otherwise specified (ANOS), 31% for lymphoepithelial carcinoma (LE), 20% for mucoepidermoid carcinoma, 17% for acinic cell carcinoma, and 17% for adenoid cystic carcinoma. T3\/T4 tumors had a 2.3 times increased risk of ONM than T1\/T2 tumors. High\u2010grade tumors had a 3.8 times increased risk of ONM than low\/intermediate\u2010grade tumors. ONM rates were exceedingly high for T3\/T4, high\u2010grade, and undifferentiated, SDC, ANOS, CXPA, and LE tumors, indicating the potential role of END.<\/jats:p>","DOI":"10.1002\/hed.26923","type":"journal-article","created":{"date-parts":[[2021,12,4]],"date-time":"2021-12-04T12:06:34Z","timestamp":1638619594000},"page":"505-517","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Elective neck dissection in salivary gland malignancies: Systematic review and meta\u2010analysis"],"prefix":"10.1002","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0724-4329","authenticated-orcid":false,"given":"Flora","family":"Yan","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery Temple University School of Medicine  Philadelphia Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wilson P.","family":"Lao","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery Loma Linda University Health  Loma Linda California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shaun A.","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Center, Department of Otolaryngology\u2013Head and Neck Surgery Medical University of South Carolina  Charleston South Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anand K.","family":"Sharma","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Medical University of South Carolina  Charleston South Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Terry A.","family":"Day","sequence":"additional","affiliation":[{"name":"Head and Neck Tumor Center, Department of Otolaryngology\u2013Head and Neck Surgery Medical University of South Carolina  Charleston South Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,12,4]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1200\/JOP.2017.026856"},{"issue":"3","key":"e_1_2_9_3_1","first-page":"169","article-title":"Management of clinically negative neck in salivary gland cancers \u2013 elective neck dissection, irradiation, or surveillance?","volume":"23","author":"Szewczyk M","year":"2019","journal-title":"Contemp Oncol"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.129.7.720"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clon.2018.08.017"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/hed.25499"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0196-0709(00)80121-0"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.b2535"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/sim.4780101015"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/oxfordjournals.aje.a009523"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1201\/9780429186196"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1214\/aoms\/1177729756"},{"key":"e_1_2_9_13_1","unstructured":"OCEBM Levels of Evidence Working GroupThe Oxford levels of evidence 2. 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