Prevalence and Incidence of Hay fever
Prevalance of Hay fever:
35 million Americans (NIAID: pollen allergies) ... see also overview of Hay fever.
Prevalance Rate:
approx 1 in 7 or 12.87% or 35 million people in USA [Source statistic for calcuation: "35 million Americans (NIAID: pollen allergies)" -- see also general information about data sources]
Hay fever Prevalence: Book Excerpts
Prevelance statistics for Hay fever:
The following statistics relate to the prevalence of Hay fever:
- 7,380,000 children (NHIS-97)
- 95 per 1000 (NHIS95: hay fever or allergic rhinitis without asthma)
- 8,526,000 children respiratory allergies (NHIS-97)
- 10% of the population with allergic rhinitis/hay fever in the US (Mayo Clinic)
- 15.6% of population self-reported having hay fever and allergic rhinitis in Australia 2001 (ABS 2001 National Health Survey, Australia’s Health 2004, AIHW)
- 15.1% of male population self-reported having hay fever and allergic rhinitis in Australia 2001 (ABS 2001 National Health Survey, Australia’s Health 2004, AIHW)
- 15.9% of female population self-reported having hay fever and allergic rhinitis in Australia 2001 (ABS 2001 National Health Survey, Australia’s Health 2004, AIHW)
- 2,953,000 people self-reported having hay fever and allergic rhinitis in Australia 2001 (ABS 2001 National Health Survey, Australia’s Health 2004, AIHW)
- more statistics...»
Prevalence/Incidence of Hay fever: 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 Hay fever.
Allergic rhinitis:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Hay fever reflects an immunoglobulin (Ig) E-mediated type I hypersensitivity response to an environmental antigen (allergen) in a genetically susceptible individual. In most cases, it’s induced by windborne pollens: in the spring by tree pollens (oak, elm, maple, alder, birch, and cottonwood), in the summer by grass pollens (sheep sorrel and English plantain), and in the fall by weed pollens (ragweed). Occasionally, hay fever is induced by allergy to fungal spores. In addition to individual sensitivity and geographical differences in plant population, the amount of pollen in the air can be a factor in determining whether symptoms develop. Hot, dry, windy days have more pollen than cool, damp, rainy days.
In perennial allergic rhinitis, inhaled allergens provoke antigen responses that produce recurring symptoms year-round. The allergens trigger antibody production and histamine release, producing itching, swelling, and mucus. The major perennial allergens and irritants include dust mites, feather pillows, mold, cigarette smoke, upholstery, and animal dander. Seasonal pollen allergy may exacerbate signs and symptoms of perennial rhinitis.
Allergic rhinitis is the most common atopic allergic reaction, affecting more than 20 million Americans. It’s most prevalent in young children and adolescents but can occur in all age groups.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Rhinitis, Allergic:
Rhinitis, Allergic - epidemiology
(The 5-Minute Pediatric Consult)
Rhinitis, Allergic - prevalence
- Increasing prevalence
- Most common allergic disease, affecting ~40 million Americans; affects 40% of children and 15–30% of adolescents
- Boys affected more than girls in childhood; equal rates among men and women
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Hay fever usually refers to the estimated population
of people who are managing Hay fever at any given time.
The term 'incidence' of Hay fever refers to the annual diagnosis rate,
or the number of new cases of Hay fever 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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