Statistics about Lactose Intolerance


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About statistics: This page presents a variety of statistics about Lactose Intolerance. The term 'prevalence' of Lactose Intolerance usually refers to the estimated population of people who are managing Lactose Intolerance at any given time. The term 'incidence' of Lactose Intolerance refers to the annual diagnosis rate, or the number of new cases of Lactose Intolerance 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.

Prevalence and incidence statistics for Lactose Intolerance: (see also prevalence and incidence page for Lactose Intolerance)
  Prevalance of Lactose Intolerance: 30 million people to 50 million people (NIDDK 1994); about 25% of population (1994/NIDDK)
  Prevalance Rate: approx 1 in 9 or 11.03% or 30 million people in USA [about data]
  Prevalance of Lactose Intolerance: Between 30 and 50 million Americans are lactose intolerant. 1 ... This most common food intolerance affects at least one out of ten people.2 ... 30 to 50 million people (1994) 3 ... An estimated 30 to 50 million Americans (about 25% of the United States population) are affected by lactose intolerance.4
  Prevelance statistics about Lactose Intolerance: The following statistics relate to the prevalence of Lactose Intolerance:
  • 90% of Asian American adults have lactose intolerance (NIDDK 1994)
  • 70% of African-American adults have lactose intolerance (NIDDK 1994)
  • 74% of Native American adults have lactose intolerance (NIDDK 1994)
  • 53% of Mexican-American adults have lactose intolerance (NIDDK 1994)
  • 15% Caucasian adults have lactose intolerance (NIDDK 1994)

Society statistics for Lactose Intolerance
  Hospitalization statistics for Lactose Intolerance: The following are statistics from various sources about hospitalizations and Lactose Intolerance:
  • 0.001% (160) of hospital consultant episodes were for lactose intolerance in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 99% of hospital consultant episodes for lactose intolerance required hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 51% of hospital consultant episodes for lactose intolerance were for men in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 49% of hospital consultant episodes for lactose intolerance were for women in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 55% of hospital consultant episodes for lactose intolerance required emergency hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 2.2 days was the mean length of stay in hospitals for lactose intolerance in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 1 days was the median length of stay in hospitals for lactose intolerance in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 11 was the mean age of patients hospitalised for lactose intolerance in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 17% of hospital consultant episodes for lactose intolerance 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 lactose intolerance occurred in people over 75 in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 38% of hospital consultant episodes for lactose intolerance were single day episodes in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 0.0004% (221) of hospital bed days were for lactose intolerance in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
'

Footnotes:
1. excerpt from Lactose Intolerance: NIDDK
2. excerpt from Food Allergy and Intolerances, NIAID Fact Sheet: NIAID
3. excerpt from Digestive Diseases Statistics: NIDDK
4. excerpt from Lactose Intolerance: NWHIC

Last revision: May 30, 2003

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