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BACKGROUND/AIMS: The prevalence of dementia and cognitive impairment not dementia was investigated in the Caerphilly Prospective Study cohort (men currently aged 65-84 years). METHODS: Of 1,633 men eligible for cognitive screening, 1,225 (75%) were seen, with those failing the screening criteria (CAMCOG <83 or decline in CAMCOG >9) being neurologically examined. RESULTS: For dementia, diagnosed by DSM-IV criteria, the population prevalence was 5.2% rising to 6.1% in the screened population. For cognitive impairment not dementia, the prevalence in the screened population was 15.6% giving an overall prevalence of cognitive impairment of 21.8%. Prevalence rose fivefold between ages of 65 and 84 years to reach over 50%. CONCLUSION: These figures are likely to underestimate actual prevalence in this population, and developing effective interventions should be a public health priority.

Original publication

DOI

10.1159/000115439

Type

Journal article

Journal

Neuroepidemiology

Publication Date

2008

Volume

30

Pages

25 - 33

Keywords

Age Factors, Aged, Aged, 80 and over, Cognition Disorders, Cohort Studies, Dementia, Humans, Male, Mass Screening, Neuropsychological Tests, Prevalence, Prospective Studies, Residence Characteristics, Wales