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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.
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
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Levels of Health Promotion and Illness Prevention01:26

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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.
In primary prevention, actions taken before disease onset prevent the disease from...
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Preventive Healthcare Services01:30

Preventive Healthcare Services

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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.
Parish nursing is a growing specialty nursing profession that focuses on holistic healthcare, health promotion, and illness prevention. It blends professional nursing practice with a health ministry, focusing on health and healing within the context of a Christian community. Parish nurses serve as health educators, referral sources,...
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Methods Of Healthcare Delivery System01:26

Methods Of Healthcare Delivery System

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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:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
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Dying in the Desired Location-Findings From the Canadian Longitudinal Study on Aging.

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Related Experiment Video

Updated: Jan 8, 2026

Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
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Public Health.

Philip D St John1, Carly Scramstad1, Robert Tate1

  • 1University of Manitoba, Winnipeg, MB, Canada.

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

The lifetime risk of dementia is concentrated in older adults, with incidence increasing significantly after age 80. High mortality rates in this cohort present a competing risk to dementia development.

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Area of Science:

  • Gerontology and Epidemiology
  • Neurodegenerative Diseases Research
  • Longitudinal Cohort Studies

Background:

  • Limited long-term, life-course data exists for closed populations.
  • Cumulative lifetime dementia risk remains largely unknown.
  • Need for age-specific incidence, prevalence, and cumulative risk data.

Purpose of the Study:

  • To determine age-specific dementia incidence in aging men.
  • To establish age-specific dementia prevalence.
  • To calculate life-course cumulative dementia risk, accounting for mortality.

Main Methods:

  • Prospective cohort study (Manitoba Follow Up Study) of men from WWII air crew training.
  • Cohort sealed in 1948, followed to 2024.
  • Dementia determined via physician reports, hospital/long-term care records, and death reviews.

Main Results:

  • Dementia incidence low before age 80, rising sharply thereafter (20/1000 person-years at 80-84, 53/1000 at 90-94).
  • Point prevalence of dementia strongly age-dependent.
  • Significant competing risk of death observed alongside dementia risk.

Conclusions:

  • Dementia risk is highly concentrated in older age groups.
  • Mortality is a substantial competing risk in life-course dementia studies.