J. Copeland

Publications193
h-index50
Citations12,966
Highly Influential Citations511
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Prevalence of dementia and major subtypes in Europe: A collaborative study of population-based cohorts. Neurologic Diseases in the Elderly Research Group.
TLDR
Dementia is more prevalent in women, and AD is the main contributor to the steep increase of prevalence with age, so a large variation across studies was observed, as well as a difference in prevalence between men and women that was age dependent.
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A computerized psychiatric diagnostic system and case nomenclature for elderly subjects: GMS and AGECAT.
The Geriatric Mental State and a new computerized diagnostic system, AGECAT, are briefly described. A nomenclature for designating cases for epidemiological work is introduced. Concordance between…
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The prevalence of dementia in Europe: a collaborative study of 1980-1990 findings. Eurodem Prevalence Research Group.
To obtain age- and gender-specific estimates of the prevalence of dementia in Europe and to study differences in prevalence across countries, we pooled and re-analysed original data of prevalence…
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Rates and risk factors for dementia and Alzheimer’s disease
TLDR
Female gender, current smoking, and low levels of education, and current smoking increased the risk of AD significantly, while head trauma was not a risk factor for AD, and smoking did not protect against AD.
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Development of the EURO–D scale – a European Union initiative to compare symptoms of depression in 14 European centres
TLDR
A two-factor solution seemed appropriate: depression, tearfulness and wishing to die loaded on the first factor (affective suffering), and loss of interest, poor concentration and lack of enjoyment on the second (motivation).
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Depression in Europe
TLDR
Considerable variation occurs in the levels of depression across Europe, the cause for which is not immediately obvious and case and sub-case levels taken together show greater variability, suggesting that it is not a matter of case/sub-case selection criteria, which were standardised by computer.
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Depression in older people in rural China.
TLDR
Older people in rural China have a lower risk of depression than those in Western countries and further exploration of Chinese culture and tradition may yield universal insights into preventive factors for depression in older people.
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A meta‐analysis of epidemiological studies in depression of older people in the People's Republic of China
TLDR
A meta‐analysis of the published epidemiological studies on depression in Chinese elderly people finds that there is an excess of depression among the Chinese elderly.
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Incidence of dementia and major subtypes in Europe: A collaborative study of population-based cohorts. Neurologic Diseases in the Elderly Research Group.
TLDR
It is confirmed that AD is the most frequent dementing disorder in all ages, and that there is a higher incidence of dementia, specifically AD, in women than men among the very old, and there may be regional differences in dementia incidence.
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Frequency and distribution of Alzheimer's disease in Europe: A collaborative study of 1980–1990 prevalence findings
TLDR
Overall European prevalence of Alzheimer's disease for the age groups 30 to 59, 60 to 69, 70 to 79, and 80 to 89 years was 0.02%, which increased exponentially with advancing age and, in some populations, was consistently higher in women.
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