Disability: Difference between revisions
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Revision as of 15:25, 29 May 2013
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Disability Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Disability On the Web |
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American Roentgen Ray Society Images of Disability |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Demographics
Difficulties in measuring
The demography of disability is difficult. Counting persons with disabilities is far more challenging than is counting males. That is because disability is not just a status condition, entirely contained within the individual. Rather, it is an interaction between medical status (say, having low vision or being blind) and the environment.
Estimates worldwide
Estimates of worldwide and country-wide numbers of individuals with disabilities are problematic. The varying approaches taken to defining disability notwithstanding, demographers agree that the world population of individuals with disabilities is very large. The World Health Organization, for example, estimates that there are as many as 600 million persons with disabilities. The United Nations estimate is 650 million. In the United States, for example, Americans with disabilities constitute the third-largest minority (after persons of Hispanic origin and African Americans); all three of those minority groups number in the 30-some millions in America. According to the U.S. Bureau of the Census, as of 2004, there were some 32 million adults (aged 18 or over) in the United States, plus another 5 million children and youth (under age 18). If one were to add impairments -- or limitations that fall short of being disabilities -- Census estimates put the figure at 51 million.
There is also widespread agreement among experts in the field that disability is more common in developing than in developed nations.
Disability insurance—nationalized and private
Disability benefit, or disability pension, is the largest kind of disability insurance, and is provided by government agencies to people who are unable to work due to a disability, temporarily or permanently. In the U.S., disability benefit is provided within the category of Supplemental Security Income, and in Canada, within the Canada Pension Plan. In other countries, disability benefit may be provided under Social Security system.
Costs of disability pensions are steadily growing in Western countries, mainly European and the United States. It was reported that in the UK, expenditure on disability pensions accounted for 0.9% of Gross Domestic Product (GDP) in 1980, but two decades later had reached 2.6% of GDP.[1][2] Several studies have reported a link between increased sickness absence and elevated risk of future disability pension.[3] A study by Denmark researchers suggests that information on self-reported days of sickness absence can be used to effectively identify future potential groups for disability pension. [2] These studies may provide useful information for policy makers, case managing authorities, employers, and physicians responsible for interventions aiming at reducing the cost and work disability.
Private, for-profit disability insurance plays a role in providing incomes to disabled people, but the nationalized programs are the safety net that catches most claimants.
Adaptations
Assistive Technology (AT) is a generic term for devices and modifications (for a person or within a society) that help overcome or remove a disability. The first recorded example of the use of a prosthesis dates to at least 1800 BC.[4] A more recent notable example is the wheelchair, dating from the 17th Century. The curb cut is a related structural innovation. Other modern examples are standing frames, text telephones, accessible keyboards, large print, Braille, & speech recognition Computer software. Individuals with disabilities often develop personal or community adaptations, such as strategies to suppress tics in public (for example in Tourette's syndrome), or sign language in deaf communities. Assistive technology or interventions are sometimes controversial or rejected, for example in the controversy over cochlear implants for children. A number of symbols are in use to indicate whether certain accessibility adaptations have been made[3].
Accessible computing
As the personal computer has become more ubiquitous, various organisations have been founded which develop software and hardware which make a computer more accessible for people with disabilities. Some software and hardware, such as SmartboxAT's The Grid, and Freedom Scientific's JAWS has been specifically designed for people with disabilities; other pieces of software and hardware, such as Nuance's Dragon NaturallySpeaking, was not developed specifically for people with disabilities, but can be used to increase accessibility.
Further organisations, such as AbilityNet and U Can Do IT, have been established to provide assessment services which determine which assistive technologies would best assist an individual client, and also to train people with disabilities in how to use computer-based assistive technology.