Prevalence and Incidence of Age-related macular degeneration
Prevalance of Age-related macular degeneration:
10,000,000 people have reduced vision due to age-related macular degeneration in the US (Research to Prevent Blindness, NISE, NSF) ... see also overview of Age-related macular degeneration.
Prevalance Rate:
approx 1 in 27 or 3.68% or 10 million people in USA [Source statistic for calcuation: "10,000,000 people have reduced vision due to age-related macular degeneration in the US (Research to Prevent Blindness, NISE, NSF)" -- see also general information about data sources]
Age-related macular degeneration: Rare Disease
Age-related macular degeneration is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Age-related macular degeneration, or a subtype of Age-related macular degeneration,
affects less than 200,000 people in the US population.
Ophanet, who are a consortium of European partners,
currently defines a condition rare when if affects 1 person per 2,000.
They list Age-related macular degeneration as a "rare disease".
More information about Age-related macular degeneration is available from Orphanet
Age-related macular degeneration Prevalence: Book Excerpts
Incidence (annual) of Age-related macular degeneration:
200,000 people develop neovascular age-related macular degeneration each year in the US (Research to Prevent Blindness, NISE, NSF) ... see also overview of Age-related macular degeneration.
Incidence Rate:
approx 1 in 1,359 or 0.07% or 200,000 people in USA [Source statistic for calcuation: "200,000 people develop neovascular age-related macular degeneration each year in the US (Research to Prevent Blindness, NISE, NSF)" -- see also general information about data sources]
Incidence extrapolations for USA for Age-related macular degeneration:
200,000 per year,
16,666 per month,
3,846 per week,
547 per day,
22 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "200,000 people develop neovascular age-related macular degeneration each year in the US (Research to Prevent Blindness, NISE, NSF)" -- see also general information about data sources]
Undiagnosed prevalence of Age-related macular degeneration:
0.5 million in the UK ... see also misdiagnosis of Age-related macular degeneration.
Undiagnosed prevalence rate:
approx 1 in 120 or 0.83% or 2.3 million people in USA [about data] ... Note: this rate calculation uses the following statistic: 0.5 million in the UK
Prevalance of Age-related macular degeneration:
It is estimated that AMD already causes visual
impairment in approximately 1.7 million of the 34 million Americans over
age 65. (Source: excerpt from Age-Related Macular Degeneration Status of Research: NEI)
Prevelance statistics for Age-related macular degeneration:
The following statistics relate to the prevalence of Age-related macular degeneration:
Incidence statistics for Age-related macular degeneration:
The following statistics relate to the incidence of Age-related macular degeneration:
Prevalence/Incidence of Age-related macular degeneration: 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 Age-related macular degeneration.
Age-related macular degeneration:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Age-related macular degeneration results from underlying pathologic changes that occur primarily at the level of the retinal pigment epithelium, Bruch’s membrane, and the choriocapillaris in the macular region. Drusen (bumps), which are common in elderly people, appear as yellow deposits beneath the pigment epithelium and may be prominent in the macula. No predisposing conditions have been identified; however, some forms of the disorder are hereditary.
Macular degeneration is the most common cause of legal blindness in adults, accounting for about 12% of blindness cases in the United States and for about 17% of new blindness cases. It’s also one of the causes of severe irreversible loss of central vision in elderly people — by age 75, almost 15% of people have this condition. Whites have the highest incidence. Other risk factors are family history and cigarette smoking.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
About prevalence and incidence statistics:
The term 'prevalence' of Age-related macular degeneration usually refers to the estimated population
of people who are managing Age-related macular degeneration at any given time.
The term 'incidence' of Age-related macular degeneration refers to the annual diagnosis rate,
or the number of new cases of Age-related macular degeneration 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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