Prevalence and Incidence of Food allergies
Prevalance of Food allergies:
1% of the adult population have a true immune reaction to food (NHWIC) ... see also overview of Food allergies.
Prevalance Rate:
approx 1 in 100 or 1.00% or 2.7 million people in USA [Source statistic for calcuation: "1% of the adult population have a true immune reaction to food (NHWIC)" -- see also general information about data sources]
Prevalance of types of Food allergies:
For details see prevalence of types of Food allergies analysis; summary of available prevalence data:
Food allergies Prevalence: Book Excerpts
Prevalance of Food allergies:
Experts estimate that food allergy occurs in 8 percent of
children 6 years of age or under, and in 1 to 2 percent of
adults.[13] Approximately 100 Americans, usually
children, die annually from food-induced
anaphylaxis.[14] (Source: excerpt from Allergy Statistics: NIAID)
...
One out of three people either say that
they have a food allergy or that they modify the family diet because
a family member is suspected of having a food allergy. But only
about three percent of children have clinically proven allergic
reactions to foods. In adults, the prevalence of food allergy drops
to about one percent of the total population. (Source: excerpt from Food Allergy and Intolerances, NIAID Fact Sheet: NIAID)
...
Although most people have experienced a reaction to something they have
eaten, only 1% of the adult population suffers from true immune reactions
to food. (Source: excerpt from Allergies: NWHIC)
Prevalence/Incidence of Food allergies: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Food allergies.
Urticaria and angioedema:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Urticaria and angioedema are common allergic reactions that may occur in 20% of the general population. The causes of these reactions include allergy to drugs, foods, insect bites and stings and, occasionally, inhalant allergens (animal dander and cosmetics) that provoke an immunoglobulin (Ig) E-mediated response to protein allergens. However, certain drugs may cause urticaria without an IgE response. When urticaria and angioedema are part of an anaphylactic reaction, they almost always persist long after the systemic response has subsided. This occurs because circulation to the skin is the last to be restored after an allergic reaction, which results in slow histamine reabsorption at the reaction site.
Nonallergic urticaria and angioedema are also related to histamine release. External physical stimuli, such as cold (usually in young adults), heat, water, or sunlight, may also provoke urticaria and angioedema. Dermographism urticaria, which develops after stroking or scratching of the skin, occurs in as much as 20% of the population. Such urticaria develops with varying pressure, usually under tight clothing, and is aggravated by scratching.
Several different mechanisms and underlying disorders may provoke urticaria and angioedema. These include IgE-induced release of mediators from cutaneous mast cells; binding of IgG or IgM to antigen, resulting in complement activation; and such disorders as localized or secondary infections (such as respiratory infection), neoplastic diseases (such as Hodgkin’s disease), connective tissue diseases (such as systemic lupus erythematosus), collagen vascular diseases, and psychogenic diseases.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Food Allergy:
Food Allergy - epidemiology
(The 5-Minute Pediatric Consult)
Food-induced anaphylaxis is the most common cause of anaphylactic reactions treated in emergency departments in the US.
Food Allergy - incidence
Unknown
Food Allergy - prevalence
- 5–8% of children <3 years of age
- Nearly 2.5% of infants have hypersensitivity reactions to cow’s milk during 1st year; outgrown by most (80%) by 5 years of age.
- 1.3% have egg allergy by 2.5 years (based on population-based studies).
- 37% of children with moderate to severe atopic dermatitis have a food allergy.
- ~6% of asthmatic children in a pulmonary clinic will have food-induced wheezing and may be at risk for fatal reactions.
>
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Food allergies usually refers to the estimated population
of people who are managing Food allergies at any given time.
The term 'incidence' of Food allergies refers to the annual diagnosis rate,
or the number of new cases of Food allergies 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.
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