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Related Concept Videos

Primary Healthcare Services01:30

Primary Healthcare Services

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Primary care promotes wellness and prevents disease. This care includes health promotion, education, protection (such as immunizations), early disease screening, and environmental considerations. Settings providing this type of healthcare include physician offices, public health clinics, school nursing, and community health nursing.
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Health promotion allows a person to control the determinants of health, resulting in an improved health status. It enhances the quality of life and reduces premature deaths. Health promotion and illness prevention programs help people make beneficial choices to reduce the risk of disease and disabilities. There are three health promotion and illness prevention levels: primary, secondary, and tertiary prevention.
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Preventive Healthcare Services01:30

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Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Healthcare Agencies II01:17

Healthcare Agencies II

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There are various healthcare agencies in the United States—some of which are managed by religious institutions and others by different government branches.
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Methods Of Healthcare Delivery System01:26

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At the different levels of the healthcare system, we see varying methods of healthcare used. These methods include managed care systems, case management, and primary healthcare.
Managed Care System:
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Public Health.

Rufus O Akinyemi1

  • 1College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria; Africa Dementia Consortium, Ibadan, Ibadan, Nigeria; Institute of Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
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Summary
This summary is machine-generated.

Dementia is rising in Africa, with hypertension, low education, and social isolation as key risk factors. Further research is crucial for developing targeted prevention strategies in African populations.

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Area of Science:

  • Neurology and Public Health
  • Epidemiology of Neurodegenerative Diseases
  • Global Health Disparities

Background:

  • Dementia disproportionately affects low- and middle-income countries (LMICs), with Africa projected to see a significant increase.
  • The rising dementia burden in Africa is linked to population growth, aging, and increased cardiovascular disease.
  • The economic impact of dementia in sub-Saharan Africa is substantial, estimated at $6.2 billion USD in 2015.

Purpose of the Study:

  • To investigate the prevalence, incidence, and risk factors of dementia in the African population.
  • To identify key modifiable risk factors for dementia in Africa for targeted intervention.
  • To provide data for developing context-specific dementia risk reduction strategies.

Main Methods:

  • Analysis of epidemiological studies and meta-analyses on dementia in Africa.
  • Utilizing the Lancet Commission on Dementia risk factors framework for analysis.
  • Preliminary analysis from the READD-ADSP Study comparing dementia cases and controls.

Main Results:

  • Pooled prevalence of dementia in Africa is approximately 5%, with an incidence rate of 2%.
  • Alzheimer's disease (60%) and vascular dementia (30%) are the most common subtypes.
  • Significant risk factors identified include older age, hypertension, depression, low education, and social isolation. Alcohol use and visual impairment showed protective associations in preliminary analysis.

Conclusions:

  • Dementia presents a growing challenge in Africa, influenced by various demographic and health factors.
  • Identifying and addressing modifiable risk factors like hypertension and low education is critical for prevention.
  • Comprehensive, longitudinal studies are needed to refine risk factor analysis and inform public health strategies in Africa.