Editing Appendicitis (section)

==Epidemiology==

[[File:Appendicitis world map-Deaths per million persons-WHO2012.svg|thumb|upright=1.3|Appendicitis deaths per million persons in 2012
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{{legend|#ffff20|0}}
{{legend|#ffe820|1}}
{{legend|#ffc020|2}}
{{legend|#ffa020|3}}
{{legend|#ff9a20|4}}
{{legend|#f08015|5–7}}
{{legend|#e06815|8–11}}
{{legend|#d85010|12–33}}
{{legend|#d02010|34–77}}
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[[File:Appendicitis world map - DALY - WHO2004.svg|thumb|upright=1.3|[[Disability-adjusted life year]] for appendicitis per 100,000&nbsp;inhabitants in 2004.<ref>{{cite web|url=https://www.who.int/healthinfo/global_burden_disease/estimates_country/en/index.html |title=WHO Disease and injury country estimates |year=2009 |work=[[World Health Organization]] |access-date=Nov 11, 2009| archive-url= https://web.archive.org/web/20201111215234/https://www.who.int/healthinfo/global_burden_disease/estimates_country/en/ |archive-date= 11 November 2020 |url-status=live}}</ref>
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{{legend|#b3b3b3|no data}}
{{legend|#ffff65|less than 2.5}}
{{legend|#fff200|2.5–5}}
{{legend|#ffdc00|5–7.5}}
{{legend|#ffc600|7.5–10}}
{{legend|#ffb000|10–12.5}}
{{legend|#ff9a00|12.5–15}}
{{legend|#ff8400|15–17.5}}
{{legend|#ff6e00|17.5–20}}
{{legend|#ff5800|20–22.5}}
{{legend|#ff4200|22.5–25}}
{{legend|#ff2c00|25–27.5}}
{{legend|#cb0000|more than 27.5}}
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Appendicitis is most common between the ages of 5 and 40.<ref>{{cite journal | vauthors = Ellis H | title = Acute appendicitis | journal = British Journal of Hospital Medicine | volume = 73 | issue = 3 | pages = C46–48 | date = March 2012 | pmid = 22411604 | doi = 10.12968/hmed.2012.73.sup3.C46 }}</ref> In 2013, it resulted in 72,000 deaths globally, down from 88,000 in 1990.<ref name=GBD2014>{{cite journal | title = Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990–2013: a systematic analysis for the Global Burden of Disease Study 2013 | journal = Lancet | volume = 385 | issue = 9963 | pages = 117–171 | date = January 2015 | pmid = 25530442 | pmc = 4340604 | doi = 10.1016/S0140-6736(14)61682-2 | vauthors= ((GBD 2013 Mortality Causes of Death Collaborators)) }}</ref>

In the United States, there were nearly 293,000 hospitalizations involving appendicitis in 2010.<ref name=Barrett2013/> Appendicitis is one of the most frequent diagnoses for emergency department visits resulting in hospitalization among children ages 5–17 years in the United States.<ref>{{cite report |last1=Wier |first1=Lauren M. |first2=Hao |last2=Yu |last3=Owens |first3=Pamela L. |last4=Washington |first4=Raynard |url=https://hcup-us.ahrq.gov/reports/statbriefs/sb157.jsp |title=Overview of Children in the Emergency Department, 2010 |work=Healthcare Cost and Utilization Project Statistical Brief #157 |publisher=[[Agency for Healthcare Research and Quality]] |date=June 2013 |url-status=live |archive-url=https://web.archive.org/web/20131203025643/http://hcup-us.ahrq.gov/reports/statbriefs/sb157.jsp |archive-date=2013-12-03 }}</ref>

Adults presenting to the emergency department with a known family history of appendicitis are more likely to have this disease than those without.<ref>{{Cite journal |last1=Drescher |first1=Michael |last2=Marcotte |first2=Shannon |last3=Grant |first3=Robert |last4=Staff |first4=Ilene |date=2012-12-01 |title=Family History is a Predictor for Appendicitis in Adults in the Emergency Department |url=http://www.escholarship.org/uc/item/9zf1h82p |journal=Western Journal of Emergency Medicine |volume=13 |issue=6 |pages=468–471 |doi=10.5811/westjem.2011.6.6679|pmid=23359540 |pmc=3555584 }}</ref>