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*The majority of acute otitis externa cases occur in adults between 65 and 74 years old.<ref name="pmid11462312">{{cite journal |vauthors=Rowlands S, Devalia H, Smith C, Hubbard R, Dean A |title=Otitis externa in UK general practice: a survey using the UK General Practice Research Database |journal=Br J Gen Pract |volume=51 |issue=468 |pages=533–8 |year=2001 |pmid=11462312 |pmc=1314044 |doi= |url=}}</ref>
*The majority of acute otitis externa cases occur in adults between 65 and 74 years old.<ref name="pmid11462312">{{cite journal |vauthors=Rowlands S, Devalia H, Smith C, Hubbard R, Dean A |title=Otitis externa in UK general practice: a survey using the UK General Practice Research Database |journal=Br J Gen Pract |volume=51 |issue=468 |pages=533–8 |year=2001 |pmid=11462312 |pmc=1314044 |doi= |url=}}</ref>
*Due to increased humidity, there is an increase in acute otitis externa among children between 5 and 14 years old.<ref name="pmid23152458">{{cite journal |vauthors=McWilliams CJ, Smith CH, Goldman RD |title=Acute otitis externa in children |journal=Can Fam Physician |volume=58 |issue=11 |pages=1222–4 |year=2012 |pmid=23152458 |pmc=3498014 |doi= |url=}}</ref>
*Due to increased humidity, there is an increase in acute otitis externa among children between 5 and 14 years old.<ref name="pmid23152458">{{cite journal |vauthors=McWilliams CJ, Smith CH, Goldman RD |title=Acute otitis externa in children |journal=Can Fam Physician |volume=58 |issue=11 |pages=1222–4 |year=2012 |pmid=23152458 |pmc=3498014 |doi= |url=}}</ref>
*The majority of malignant otitis externa patients  
*The majority of malignant otitis externa patients are aged 50 and older; this is due to the primary cause of [[immunocompromise]] resulting in maligant otitis externa being [[diabetes mellitus]].<ref name="urlCDC - Distribution of Age at Diagnosis - Age at Diagnosis - Data & Trends - Diabetes DDT">{{cite web |url=http://www.cdc.gov/diabetes/statistics/age/fig1.htm |title=CDC - Distribution of Age at Diagnosis - Age at Diagnosis - Data & Trends - Diabetes DDT |format= |work= |accessdate=}}</ref><ref name="pmid12892351">{{cite journal |vauthors=Handzel O, Halperin D |title=Necrotizing (malignant) external otitis |journal=Am Fam Physician |volume=68 |issue=2 |pages=309–12 |year=2003 |pmid=12892351 |doi= |url=}}</ref>     


==References==
==References==

Revision as of 14:39, 11 May 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S..

Overview

Incidence

  • The incidence of acute otitis externa is usually high:
    • In the U.S., the incidence is approximately 801 per 100,000 individuals.[1]
    • In the Netherlands, the incidence is approximately 140 per 100,000 individuals.[2]
  • The incidence of acute otitis externa is greater in climates that experience more year-round humidity, increased by a more conducive climate to bacterial and fungal colonization.[3][4]

Prevalence

  • A study of acute otitis externa patients in the United Kingdom revealed that the disease prevailed for 12-months in approximately 24 per 100,000 individuals.[5][6]

Case Fatality Rate

  • The annual Case Fatality Rate for malignant necrotizing otitis externa is approximately 10-20%.[7]

Age

  • The majority of acute otitis externa cases occur in adults between 65 and 74 years old.[6]
  • Due to increased humidity, there is an increase in acute otitis externa among children between 5 and 14 years old.[8]
  • The majority of malignant otitis externa patients are aged 50 and older; this is due to the primary cause of immunocompromise resulting in maligant otitis externa being diabetes mellitus.[9][10]

References

  1. "Estimated Burden of Acute Otitis Externa --- United States, 2003--2007".
  2. van Balen, F. A M (2003). "Clinical efficacy of three common treatments in acute otitis externa in primary care: randomised controlled trial". BMJ. 327 (7425): 1201–1205. doi:10.1136/bmj.327.7425.1201. ISSN 0959-8138.
  3. Martin TJ, Kerschner JE, Flanary VA (2005). "Fungal causes of otitis externa and tympanostomy tube otorrhea". Int. J. Pediatr. Otorhinolaryngol. 69 (11): 1503–8. doi:10.1016/j.ijporl.2005.04.012. PMID 15927274.
  4. Ramos GP, Rocha JL, Tuon FF (2013). "Seasonal humidity may influence Pseudomonas aeruginosa hospital-acquired infection rates". Int. J. Infect. Dis. 17 (9): e757–61. doi:10.1016/j.ijid.2013.03.002. PMID 23639485.
  5. "Population, total | Data | Table".
  6. 6.0 6.1 Rowlands S, Devalia H, Smith C, Hubbard R, Dean A (2001). "Otitis externa in UK general practice: a survey using the UK General Practice Research Database". Br J Gen Pract. 51 (468): 533–8. PMC 1314044. PMID 11462312.
  7. Bhandary S, Karki P, Sinha BK (2002). "Malignant otitis externa: a review". Pac Health Dialog. 9 (1): 64–7. PMID 12737420.
  8. McWilliams CJ, Smith CH, Goldman RD (2012). "Acute otitis externa in children". Can Fam Physician. 58 (11): 1222–4. PMC 3498014. PMID 23152458.
  9. Handzel O, Halperin D (2003). "Necrotizing (malignant) external otitis". Am Fam Physician. 68 (2): 309–12. PMID 12892351.

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