Statistics about Chickenpox


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About statistics: This page presents a variety of statistics about Chickenpox. The term 'prevalence' of Chickenpox usually refers to the estimated population of people who are managing Chickenpox at any given time. The term 'incidence' of Chickenpox refers to the annual diagnosis rate, or the number of new cases of Chickenpox diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.

  Prevention statistics for Chickenpox: The following are statistics from various sources about the prevention of Chickenpox:
  • 81% of children aged 19-35 months were vaccinated for chickenpox annually in the US 2002 (National, State, and Urban Area Vaccination Levels Among Children - US, 2002, NCHS, CDC)

Prevalence and incidence statistics for Chickenpox: (see also prevalence and incidence page for Chickenpox)
  Incidence (annual) of Chickenpox: 120,624 annually (1995); 46,016 annual cases notified in USA 1999 (MMWR 1999); 199.14 per 100,000 in Canada 20001
  Incidence Rate: approx 1 in 2,254 or 0.04% or 120,624 people in USA [about data]
  Prevalance of Chickenpox: Almost everyone gets chickenpox by adulthood (more than 95% of Americans). Chickenpox is highly contagious. CDC estimates that 4 million cases occur each year. 2
Death and mortality statistics for Chickenpox:
  Deaths from Chickenpox: approximately 100 deaths (CDC-OC)
  Deaths from Chickenpox: Every year there are approximately 5,000-9,000 hospitalizations and 100 deaths from chickenpox in the United States.2
Society statistics for Chickenpox
  Costs for Chickenpox: estimated $918 million in 1993
  Costs for Chickenpox: In the United States, the annual cost of caring for children of normal health who contract chickenpox was estimated as $918 million in 1993. 2
  Hospitalizations for Chickenpox: approximately 5,000-9,000 hospitalizations (CDC-OC)
  Hospitalization statistics for Chickenpox: The following are statistics from various sources about hospitalizations and Chickenpox:
  • 0.028% (3,561) of hospital consultant episodes were for varicella (chickenpox) in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 93% of hospital consultant episodes for varicella (chickenpox) required hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 56% of hospital consultant episodes for varicella (chickenpox) were for men in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 44% of hospital consultant episodes for varicella (chickenpox) were for women in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 95% of hospital consultant episodes for varicella (chickenpox) required emergency hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 2.5 days was the mean length of stay in hospitals for varicella (chickenpox) in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 1 days was the median length of stay in hospitals for varicella (chickenpox) in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 10 was the mean age of patients hospitalised for varicella (chickenpox) in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 22% of hospital consultant episodes for varicella (chickenpox) occurred in 15-59 year olds in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 1% of hospital consultant episodes for varicella (chickenpox) occurred in people over 75 in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 1% of hospital consultant episodes for varicella (chickenpox) were single day episodes in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 0.016% (8,214) of hospital bed days were for varicella (chickenpox) in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
'

Footnotes:
1. Notifiable Diseases Online, PPHB, Canada, 2000
2. excerpt from Facts About Chickenpox (Varicella): CDC-OC

Last revision: October 23, 2003

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