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| Adults | 1 |
| Alzheimers Disease | 1 |
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| Downs Syndrome | 1 |
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| American Journal on Mental… | 1 |
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| Visser, F. E. | 1 |
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Visser, F. E.; And Others – American Journal on Mental Retardation, 1997
Institutionalized patients with Down syndrome (N=307) were monitored for 5 to 10 years to determine prevalence of Alzheimer-type dementia. Prevalence increased from 11% between ages 40 and 49 to 77% between 60 and 69. All patients 70 and over had dementia. Mean age of onset of dementia was 56 years. Neuropathological findings were consistent with…
Descriptors: Adults, Alzheimers Disease, Clinical Diagnosis, Downs Syndrome
