Chickenpox epidemiology and demographics: Difference between revisions
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===Case Fatality Rate=== | ===Case Fatality Rate=== | ||
Between the years 1990-1994, case fatality rate in the US/UK is 2-3 | Between the years 1990-1994, case fatality rate in the US/UK is 2-3 per 100,000. | ||
*The case fatality rate among children was 1 | *The case fatality rate among children was 1 per 100,000. | ||
*In 2008 the case fatality rate in Brazil estimated case fatality rate is 4 | *In 2008 the case fatality rate in Brazil estimated case fatality rate is 4 per 100,000. <ref name="urlwww.who.int">{{cite web |url=http://www.who.int/immunization/sage/meetings/2014/april/2_SAGE_April_VZV_Seward_Varicella.pdf |title=www.who.int |format= |work= |accessdate=}}</ref> | ||
*In 2000 the case fatality rate in Guinea Bissau was approximately 129 | *In 2000 the case fatality rate in Guinea Bissau was approximately 129 per 100,000 case, 50 times higher than US/UK. | ||
*In 1970, the case fatality rate in India among adults was 52 | *In 1970, the case fatality rate in India among adults was 52 [er 100,000 cases, 20 times higher than US/UK. | ||
*Worldwide, the case fatality rate among adults was 20-25 | *Worldwide, the case fatality rate among adults was 20-25 per 100,000. <ref name="urlwww.who.int">{{cite web |url=http://www.who.int/immunization/sage/meetings/2014/april/2_SAGE_April_VZV_Seward_Varicella.pdf |title=www.who.int |format= |work= |accessdate=}}</ref> | ||
[[Image:VZV - Case Fatality Rate.jpg|center|500px]] | [[Image:VZV - Case Fatality Rate.jpg|center|500px]] | ||
Revision as of 00:48, 30 June 2017
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief:
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Chickenpox Microchapters |
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Chickenpox epidemiology and demographics On the Web |
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American Roentgen Ray Society Images of Chickenpox epidemiology and demographics |
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Risk calculators and risk factors for Chickenpox epidemiology and demographics |
Overview
Varicella is an endemic disease spread mainly by the respiratory route. Cases are observed all through the year but most in the winter and early spring. In tropical regions, cases of varicella infection have been reported to be more commonly among adults than children.
Epidemiology
Prevalence
Incidence
The incidence of chicken pox varies among age groups. The incidence rates per 100,000 persons in each age group were as follow:
- For age groups 0 to 4 years 5234 per 100,000 person
- For age groups 5 to 9 years 4132 per 100,000 person
- For age groups 10 to 14 years 1404 per 100,000 person
- For age groups 15 to 19 years 610 per 100,000 person
- For age groups >20 years 175 per 100,000 person
These rates continued to decline for older age groups [1]
Case Fatality Rate
Between the years 1990-1994, case fatality rate in the US/UK is 2-3 per 100,000.
- The case fatality rate among children was 1 per 100,000.
- In 2008 the case fatality rate in Brazil estimated case fatality rate is 4 per 100,000. [2]
- In 2000 the case fatality rate in Guinea Bissau was approximately 129 per 100,000 case, 50 times higher than US/UK.
- In 1970, the case fatality rate in India among adults was 52 [er 100,000 cases, 20 times higher than US/UK.
- Worldwide, the case fatality rate among adults was 20-25 per 100,000. [2]
Demographics
Age
- The prevalence of chicken pox decreases with age.
- Varicella commonly affects children less than 10 years of age with the highest incidence among children 1-4 years of age.
Gender
- The prevalence and incidence of chickenpox does not vary by gender.
- Chickenpox is more prevalent in females between the ages of 15 - 24 when compared to males.[3]
Race
- There is no racial predilection for chickenpox.
Developed Countries
The epidemiology and demographics of chickenpox in the developed countries are as follows:[2]
- Incidence
- 15.0 – 16.0/1,000 persons per year
- Deaths
- 3 deaths per 100,000 cases
Case fatality rate
Gallery
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![Varicella cases and states reporting, United States, 1972-1996. From Public Health Image Library (PHIL). [4]](/images/2/26/Chickenpox40.jpeg)
Varicella cases and states reporting, United States, 1972-1996. From Public Health Image Library (PHIL). [4]
![Varicella cases and states reporting, United States, 1972-1996. From Public Health Image Library (PHIL). [4]](/index.php/File:Chickenpox40.jpeg)
References
- ↑ Choo PW, Donahue JG, Manson JE, Platt R (1995). "The epidemiology of varicella and its complications". J. Infect. Dis. 172 (3): 706–12. PMID 7658062.
- ↑ 2.0 2.1 2.2 "www.who.int" (PDF).
- ↑ Fleming DM, Cross KW, Cobb WA, Chapman RS (2004). "Gender difference in the incidence of shingles". Epidemiol. Infect. 132 (1): 1–5. PMC 2870070. PMID 14979582.
- ↑ "Public Health Image Library (PHIL)".