Prevalence and Incidence of Hamman-Rich syndrome
Hamman-Rich syndrome: Rare Disease
Hamman-Rich syndrome is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Hamman-Rich syndrome, or a subtype of Hamman-Rich syndrome,
affects less than 200,000 people in the US population.
Hamman-Rich syndrome Prevalence: Book Excerpts
Prevalence/Incidence of Hamman-Rich syndrome: Online Medical Books
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Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Hamman-Rich syndrome.
Idiopathic pulmonary fibrosis:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
IPF is the result of a cascade of events that involve inflammatory, immune, and fibrotic processes in the lung. However, despite many studies and hypotheses, the stimulus that begins the progression remains unknown. Speculation has revolved around viral and genetic causes, but no good evidence has been found to support either theory. However, it’s clear that chronic inflammation plays an important role. Inflammation develops the injury and the fibrosis that ultimately distorts and impairs the structure and function of the alveolocapillary gas exchange surface.
IPF is slightly more common in men than in women and is more common in smokers than in nonsmokers. It usually affects people ages 50 to 70.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
About prevalence and incidence statistics:
The term 'prevalence' of Hamman-Rich syndrome usually refers to the estimated population
of people who are managing Hamman-Rich syndrome at any given time.
The term 'incidence' of Hamman-Rich syndrome refers to the annual diagnosis rate,
or the number of new cases of Hamman-Rich syndrome 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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