AAFA
 
   Print Page
 
Allergy Facts and Figures

 

Overview

Allergy is characterized by an overreaction of the human immune system to a foreign protein substance (“allergen”) that is eaten, breathed into the lungs, injected or touched. This immune overreaction can results in symptoms such as coughing, sneezing, itchy eyes, runny nose and scratchy throat. In severe cases it can also result in rashes, hives, lower blood pressure, difficulty breathing, asthma attacks, and even death.

  • There are no cures for allergies. Allergies can be managed with proper prevention and treatment.
  • Allergies have a genetic component. If only one parent has allergies of any type, chances are 1 in 3 that each child will have an allergy. If both parents have allergies, it is much more likely (7 in 10) that their children will have allergies.
  • More Americans than ever before say they are suffering from allergies. It is among the country's most common, yet often overlooked, diseases.

bargraph

 

 

 

 

 

 

 

 

 

 

* Annual U.S. Prevalence Statistics for Chronic Diseases

 

  

  • An estimated 50 million Americans suffer from all types of allergies (1 in 5 Americans) including indoor/outdoor, food & drug, latex, insect, skin and eye allergies. Allergy prevalence overall has been increasing since the early 1980s across all age, sex and racial groups. [1]
  • Allergy is the 5th leading chronic disease in the U.S. among all ages, and the 3rd most common chronic disease among children under 18 years old. [2]
  • Indoor and Outdoor Allergies – (Allergic rhinitis; seasonal/perennial allergies; hay fever; nasal allergies) Approximately 40 million Americans have indoor/outdoor allergies as their primary allergy. (Many people with allergies usually have more than one type of allergy.) Approximately 10 million people are allergic to cat dander, the most common pet allergy. The most common indoor/outdoor allergy triggers are:  tree, grass and weed pollen; mold spores; dust mite and cockroach allergen; and, cat, dog and rodent dander.
  • Skin Allergies – (Atopic dermatitis; eczema; hives; urticaria; contact allergies) Approximately 7% of allergy sufferers have skin allergies as their primary allergy. Plants such as poison ivy, oak and sumac are the most common skin allergy triggers. However, skin contact with cockroach and dust mite allergen, certain foods or latex may also trigger symptoms of skin allergy.
  • Food and Drug Allergies – Approximately 6% of allergy sufferers have food/drug allergies as their primary allergy. Food allergy is more common among children than adults. 90% of all food allergy reactions are cause by 8 foods:  milk, soy, eggs, wheat, peanuts, tree nuts, fish and shellfish. For drug allergies, penicillin is the most common allergy trigger.
  • Latex Allergy – Approximately 4% of allergy sufferers have latex allergy as their primary allergy. An estimated 10% of healthcare works suffer from latex allergy. 
  • Insect Allergies – Approximately 4% of allergy sufferers have insect allergies as their primary allergy (bee/wasp stings and venomous ant bites; cockroach and dust mite allergen may also cause nasal or skin allergy symptoms.)
  • Eye Allergies – (Allergic conjunctivitis; ocular allergies) – Approximately 4% of allergy sufferers have eye allergies as their primary allergy, often caused by many of the same triggers as indoor/outdoor allergies.

Morbidity

  • Allergies are the most frequently reported chronic condition in children, limiting activities for more than 40% of them.
  • Each year, allergies account for more than 17 million outpatient office visits, primarily in the spring and fall; seasonal allergies account for more than half of all allergy visits. [3]
  • Skin allergies alone account for more than 7 million outpatient visits each year. [4]
  • Food allergies account for 30,000 visits to the emergency room each year. [5]
  • Exposure to latex allergen alone is responsible for over 200 cases of anaphylaxis (severe allergic reactions) each year. [6]

Mortality

  • Nearly 400 Americans die each year due to drug allergies from penicillin. [7]
  • More than 200 deaths occur each year due to food allergies. [8]
  • Each year nearly 100 Americans die due to insect allergies. [9]
  • 10 deaths each year are due to severe reactions to latex allergy. [10]

Social and Economic Costs

  • The annual cost of allergies is estimated to be nearly $14.5 billion.
  • Nearly 85% ($12.3 billion) is for direct costs including $1.3 billion for doctor office visits and $11 billion for medications ($7 billion prescription, $4 billion over-the-counter).
  • Indirect costs of allergy (missed work or school, lost productivity, death, etc.) account for approximately $2.2 billion (15%) of the total annual cost of allergies in the U.S.
  • For adults, allergies (hay fever) is the 5th leading chronic disease and a major cause of work absenteeism and “presenteeism,” resulting in nearly 4 million missed or lost workdays each year, resulting in a total cost of more than $700 million in total lost productivity. [12]

 


[1] “CDC Fast Facts A-Z,” Vital Health Statistics, 2003
[2] “Chronic Conditions: A Challenge for the 21st Centrury,” National Academy on an Aging Society, 2000
[3] “CDC Fast Facts A-Z,” Vital Health Statistics, 2003
[4] “In Allergy Principles and Practice,” 5th Edition, 1998
[5] “Anaphylaxis in the United States,” Archives of Internal Medicine, 2001
[6] “Anaphylaxis in the United States,” Archives of Internal Medicine, 2001
[7] “Anaphylaxis in the United States,” Archives of Internal Medicine, 2001
[8] “Anaphylaxis in the United States,” Archives of Internal Medicine, 2001
[9] “Anaphylaxis in the United States,” Archives of Internal Medicine, 2001
[10] “Anaphylaxis in the United States,” Archives of Internal Medicine, 2001
[11] “Chronic Conditions: A Challenge for the 21st Centrury,” National Academy on an Aging Society, 2000
[12] “Chronic Conditions: A Challenge for the 21st Centrury,” National Academy on an Aging Society, 2000

© Asthma and Allergy Foundation of America
www.aafa.org 1-800-7-ASTHMA