Chickenpox epidemiology and demographics: Difference between revisions

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{{Chickenpox}}
{{Chickenpox}}
==Overview==
==Overview==
The incidence of [[chickenpox]] varies among various age groups. [[Varicella]] commonly affects children less than 10 years of age with the highest incidence among children 1-4 years of age. The incidence of [[chickenpox]] for children between 0 to 4 years of age is 5234 per 100,000 individuals. Between the years 1990-1994, the [[case fatality rate]] of [[chickenpox]] in the US/UK is 2-3 per 100,000 individuals. In the developed countries [[chickenpox]] causes around 3 deaths per 100,000 individuals.
The [[incidence]] of [[chickenpox]] varies among various age groups. [[Varicella]] commonly affects children less than 10 years of age with the highest [[incidence]] among children 1-4 years of age. The [[incidence]] of [[chickenpox]] for children between 0 to 4 years of age is 5234 per 100,000 individuals. Between the years 1990-1994, the [[case fatality rate]] of [[chickenpox]] in the US/UK was 2-3 per 100,000 individuals. In developed countries, [[chickenpox]] causes around 3 deaths per 100,000 individuals.


==Epidemiology==
==Epidemiology==
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===Incidence===
===Incidence===


The [[incidence]] of [[chickenpox]] varies among various age groups. The incidence rates per 100,000 persons in each age group were as follow:  
The [[incidence]] of [[chickenpox]] varies among various 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 individuals
*For age groups 0 to 4 years 5234 per 100,000 individuals
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*For age groups 15 to 19 years 610 per 100,000 individuals
*For age groups 15 to 19 years 610 per 100,000 individuals
*For age groups >20 years 175 per 100,000 individuals
*For age groups >20 years 175 per 100,000 individuals
The rates of [[incidence]] of [[chickenpox]] continue to decline for older age groups.<ref name="pmid7658062">{{cite journal |vauthors=Choo PW, Donahue JG, Manson JE, Platt R |title=The epidemiology of varicella and its complications |journal=J. Infect. Dis. |volume=172 |issue=3 |pages=706–12 |year=1995 |pmid=7658062 |doi= |url=}}</ref>
The rates of [[incidence]] of [[chickenpox]] declines for older age groups.<ref name="pmid7658062">{{cite journal |vauthors=Choo PW, Donahue JG, Manson JE, Platt R |title=The epidemiology of varicella and its complications |journal=J. Infect. Dis. |volume=172 |issue=3 |pages=706–12 |year=1995 |pmid=7658062 |doi= |url=}}</ref>
[[Image:Chickenpox Graph 1.jpg|center|500px]]
[[Image:Chickenpox Graph 1.jpg|center|thumb|500px|Source: https://www.cdc.gov/]]


===Case Fatality Rate===
===Case Fatality Rate===
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*In 1970, the [[case fatality rate]] in India among adults was 52 per 100,000 cases, 20 times higher than US/UK.
*In 1970, the [[case fatality rate]] in India among adults was 52 per 100,000 cases, 20 times higher than US/UK.
*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>
*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|source: WHO.int]]


==Demographics==
==Demographics==


===Age===
===Age===
*The prevalence of chicken pox decreases with 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.
*Varicella commonly affects children less than 10 years of age with the highest [[incidence]] among children 1-4 years of age.
[[Image:VZV_-_Age 2.jpg|center|600px]]
[[Image:VZV_-_Age 2.jpg|center|600px|source: WHO.int]]
[[Image:Chickenpox Graph 3.jpg|center|600px]]
[[Image:Chickenpox Graph 3.jpg|center|600px|source: WHO.int]]


===Gender===
===Gender===


*The prevalence and incidence of chickenpox generally does not vary by gender.  
*The [[prevalence]] and [[incidence]] of chickenpox generally do not vary by gender.  
*However, chickenpox is more prevalent in females between the ages of 15 - 24 as compared to males.<ref name="pmid14979582">{{cite journal |vauthors=Fleming DM, Cross KW, Cobb WA, Chapman RS |title=Gender difference in the incidence of shingles |journal=Epidemiol. Infect. |volume=132 |issue=1 |pages=1–5 |year=2004 |pmid=14979582 |pmc=2870070 |doi= |url=}}</ref>
*Chickenpox is more prevalent in females between the ages of 15 - 24 as compared to males.<ref name="pmid14979582">{{cite journal |vauthors=Fleming DM, Cross KW, Cobb WA, Chapman RS |title=Gender difference in the incidence of shingles |journal=Epidemiol. Infect. |volume=132 |issue=1 |pages=1–5 |year=2004 |pmid=14979582 |pmc=2870070 |doi= |url=}}</ref>


===Race===
===Race===
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===Developed Countries===
===Developed Countries===
The epidemiology and demographics of chickenpox in the developed countries are as follows:<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>
The [[epidemiology]] and [[demographics]] of chickenpox in developed countries are as follows:<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>


*Incidence
*[[Incidence]]
**1500 – 1600 per 100,000 persons per year
**1500 – 1600 per 100,000 persons per year
*Deaths
*[[Case fatality rate|Case-fatality rate]]
**3 deaths per 100,000 individuals
**3 deaths per 100,000 cases
 


==Gallery==
==Gallery==
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{{Reflist|2}}
{{Reflist|2}}


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Latest revision as of 20:53, 29 July 2020


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Overview

The incidence of chickenpox varies among various age groups. Varicella commonly affects children less than 10 years of age with the highest incidence among children 1-4 years of age. The incidence of chickenpox for children between 0 to 4 years of age is 5234 per 100,000 individuals. Between the years 1990-1994, the case fatality rate of chickenpox in the US/UK was 2-3 per 100,000 individuals. In developed countries, chickenpox causes around 3 deaths per 100,000 individuals.

Epidemiology

Incidence

The incidence of chickenpox varies among various 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 individuals
  • For age groups 5 to 9 years 4132 per 100,000 individuals
  • For age groups 10 to 14 years 1404 per 100,000 individuals
  • For age groups 15 to 19 years 610 per 100,000 individuals
  • For age groups >20 years 175 per 100,000 individuals

The rates of incidence of chickenpox declines for older age groups.[1]

Source: https://www.cdc.gov/

Case Fatality Rate

Between the years 1990-1994, case fatality rate in the US/UK is 2-3 per 100,000.

source: WHO.int
source: WHO.int

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.
source: WHO.int
source: WHO.int
source: WHO.int
source: WHO.int

Gender

  • The prevalence and incidence of chickenpox generally do not vary by gender.
  • Chickenpox is more prevalent in females between the ages of 15 - 24 as compared to males.[3]

Race

  • There is no racial predilection for chickenpox.

Developed Countries

The epidemiology and demographics of chickenpox in developed countries are as follows:[2]

Gallery

References

  1. ↑ 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. ↑ 2.0 2.1 2.2 "www.who.int" (PDF).
  3. ↑ 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.
  4. ↑ "Public Health Image Library (PHIL)".


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