1998
DOI: 10.1017/s0033291798007417
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A four year prospective study of age-related cognitive change in adults with Down's syndrome

Abstract: Background. While neuropathological studies indicate a high risk for Alzheimer's disease in adults with Down's syndrome, neuropsychological studies suggest a lower prevalence of dementia. In this study, cognitive deterioration in adults with Down's syndrome was examined prospectively over 4 years to establish rates and profiles of cognitive deterioration.

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Cited by 146 publications
(178 citation statements)
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“…Since one-third of people with severe learning disabilities have Down's syndrome, and because of increasing longevity, they contribute significantly to the numbers of people who have dementia (Cooper, 1997). It should be noted, however, that the prevalence of cognitive impairments consistent with the presence of Alzheimer's disease is not as high as would be expected from neuropathological studies (Oliver et al, 1998). Cooper (1997) has shown that dementia is also more frequent among elderly people with learning disabilities who do not have Down's syndrome than among the wider elderly population.…”
Section: Mental Healthmentioning
confidence: 97%
“…Since one-third of people with severe learning disabilities have Down's syndrome, and because of increasing longevity, they contribute significantly to the numbers of people who have dementia (Cooper, 1997). It should be noted, however, that the prevalence of cognitive impairments consistent with the presence of Alzheimer's disease is not as high as would be expected from neuropathological studies (Oliver et al, 1998). Cooper (1997) has shown that dementia is also more frequent among elderly people with learning disabilities who do not have Down's syndrome than among the wider elderly population.…”
Section: Mental Healthmentioning
confidence: 97%
“…There appears to be no relationship between level of learning disability and risk of dementia or age at onset of dementia . The rate of deterioration appears to increase with age (Oliver et al, 1998). The level of pre-existing cognitive function is also closely associated with the rate of decline (Temple et al, 2001).…”
Section: Epidemiology and Aetiologymentioning
confidence: 99%
“…Early-onset symptoms may vary from person to person, but there is evidence that the acquisition of deficits tends to mimic those seen in Alzheimer's disease generally (Oliver et al, 1998). Deterioration in memory, learning and orientation tend to be the first signs, and these symptoms are often accompanied by increased dependence (Cosgrave et al, 2000).…”
Section: Presentation Of Dementia In Down's Syndromementioning
confidence: 99%
“…This risk increases with age and is greater for relatives of individuals with early-onset rather than late-onset (63). Late-onset AD appears to result from multiple mutations that create a predisposition for the disease.…”
Section: Non-modifiable Risk Factorsmentioning
confidence: 99%