Editing Cleft lip and cleft palate (section)

==Epidemiology==
{{Main|Clefting prevalence in different cultures}}
Cleft lip and palate occurs in about 1 to 2 per 1000 births in the [[developed world]].<ref name="Wat2014" />

Rates for cleft lip with or without cleft palate and cleft palate alone varies within different [[Ethnicity|ethnic]] groups.

According to CDC, the prevalence of cleft palate in the United States is 6.35/10000 births and the prevalence of cleft lip with or without cleft palate is 10.63/10000 births.<ref>{{Cite web|url=https://www.nidcr.nih.gov/research/data-statistics/craniofacial-birth-defects/prevalence|title=Prevalence of Cleft Lip & Cleft Palate {{!}} National Institute of Dental and Craniofacial Research|website=www.nidcr.nih.gov|access-date=August 2, 2019}}</ref> The highest prevalence [[rate (mathematics)|rate]]s for cleft lip, either with or without cleft palate are reported for Native Americans and [[Asians]]. [[Ethnic groups of Africa|Africans]] have the lowest prevalence rates.<ref>See {{cite web|url=http://www.webmd.com/hw-popup/who-is-affected-by-cleft-lip-and-cleft-palate|title=Who is affected by cleft lip and cleft palate|archive-url=https://web.archive.org/web/20080330201247/http://www.webmd.com/hw-popup/who-is-affected-by-cleft-lip-and-cleft-palate|archive-date=March 30, 2008|url-status=dead|access-date=June 20, 2008}}</ref>
* Native Americans: 3.74/1000
* Japanese: 0.82/1000 to 3.36/1000
* [[Han Chinese|Chinese]]: 1.45/1000 to 4.04/1000
* [[White Americans]]: 1.43/1000 to 1.86/1000
* [[Latin Americans]]: 1.04/1000
* Africans: 0.18/1000 to 1.67/1000

Cleft lip and cleft palate caused about 3,800 deaths globally in 2017, down from 14,600 deaths in 1990.<ref name=":0" />

Prevalence of "cleft [[uvula]]" has varied from 0.02% to 18.8% with the highest numbers found among [[Chippewa]] and [[Navajo people|Navajo]] and the lowest generally in Africans.<ref>{{cite journal | vauthors = Cervenka J, Shapiro BL | title = Cleft uvula in Chippewa Indians: prevalence and genetics | journal = Human Biology | volume = 42 | issue = 1 | pages = 47–52 | date = February 1970 | pmid = 5445084 }}</ref><ref name="pmid2784825">{{cite journal | vauthors = Rivron RP | title = Bifid uvula: prevalence and association in otitis media with effusion in children admitted for routine otolaryngological operations | journal = The Journal of Laryngology and Otology | volume = 103 | issue = 3 | pages = 249–252 | date = March 1989 | pmid = 2784825 | doi = 10.1017/S002221510010862X | s2cid = 32750501 }}</ref>