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Related Concept Videos

Primary Healthcare Services01:30

Primary Healthcare Services

1.9K
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

Levels of Health Promotion and Illness Prevention

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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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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.

Larry C Shaver1, Su-Bin Park1, Anne-Marie Robert1

  • 1Public Health Agency of Canada, Ottawa, ON, Canada.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
PubMed
Summary

The COVID-19 pandemic saw a modest increase in dementia incidence but a significant rise in all-cause mortality. Dementia prevalence decreased more rapidly during the pandemic due to these factors.

Area of Science:

  • Public Health Surveillance
  • Epidemiology
  • Gerontology

Background:

  • The Canadian Chronic Disease Surveillance System (CCDSS) monitors chronic diseases nationally.
  • The COVID-19 pandemic impacted health behaviors and data collection.
  • Previous studies noted reduced dementia case capture and increased mortality during the pandemic.

Purpose of the Study:

  • To analyze national dementia surveillance data from 2015 to 2023.
  • To assess the impact of the COVID-19 pandemic on dementia incidence, mortality, and prevalence.
  • To examine trends in diagnosed dementia, including Alzheimer Disease.

Main Methods:

  • Utilized Canadian Chronic Disease Surveillance System (CCDSS) data, linking health insurance registries with administrative health records.

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  • Calculated the average annual percentage change (AAPC) for dementia incidence, all-cause mortality, and prevalence.
  • Compared pre-pandemic (2015-2020) and pandemic (2020-2023) periods using age-standardized estimates.

    • Main Results:

    • Dementia incidence: Decreased <1% annually pre-pandemic; increased 0.2% annually during the pandemic.
    • All-cause mortality: Increased <1% annually pre-pandemic; increased 3% annually during the pandemic.
    • Prevalence: Decreased 1% annually pre-pandemic; accelerated to a 1.6% annual decrease during the pandemic.

    Conclusions:

    • The accelerated decline in dementia prevalence during the pandemic was linked to increased mortality and initial incidence decrease.
    • Pandemic-related factors significantly influenced dementia surveillance trends.
    • Continued monitoring is essential to understand long-term pandemic effects on dementia data.