- Last edited on October 27, 2023
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cl:2-major-neurocog-disorder [on March 29, 2021] |
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===== Primer ===== | ===== Primer ===== | ||
+ | **Major neurocognitive disorder** (and [[cl:3-mild-neurocog-disorder|mild neurocognitive disorder]]) exists on a spectrum of cognitive and functional impairment. The term major neurocognitive disorder corresponds to the condition referred to what was previously referred to in the DSM-IV as dementia. The core feature of neurocognitive disorders is an acquired cognitive decline in one or more cognitive domains based on (A) both a concern about cognition on the part of the individual, a knowledgeable informant, or the clinician, and (B) performance on an objective assessment that falls below the expected level or observed decline over time. | ||
== Epidemiology == | == Epidemiology == | ||
- | The dementia subtypes contributing to major neurocognitive disorder is estimated to be 31.3% [[geri:dementia:alzheimers|Alzheimer's dementia]], 21.9% [[geri:dementia:vascular|vascular dementia]], 10.9% [[geri:dementia:lewy-body|Lewy body dementia]], and 7.8% [[geri:dementia:frontotemporal|frontotemporal dementia]].[([[https://pubmed.ncbi.nlm.nih.gov/11872521/|Stevens, T. I. M., Livingston, G., Kitchen, G., Manela, M., Walker, Z., & Katona, C. (2002). Islington study of dementia subtypes in the community. The British Journal of Psychiatry, 180(3), 270-276.]])] | + | * The prevalence of major neurocognitive disorder varies widely by age and by etiological subtype. |
+ | * The dementia subtypes contributing to major neurocognitive disorder is estimated to be 31.3% [[geri:dementia:alzheimers|Alzheimer's dementia]], 21.9% [[geri:dementia:vascular|vascular dementia]], 10.9% [[geri:dementia:lewy-body|Lewy body dementia]], and 7.8% [[geri:dementia:frontotemporal|frontotemporal dementia]].[([[https://pubmed.ncbi.nlm.nih.gov/11872521/|Stevens, T. I. M., Livingston, G., Kitchen, G., Manela, M., Walker, Z., & Katona, C. (2002). Islington study of dementia subtypes in the community. The British Journal of Psychiatry, 180(3), 270-276.]])] | ||
== Prognosis == | == Prognosis == |