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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

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

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Public Health.

Zaldy S Tan1,2, Nabeel Qureshi1,3, Nancy Sicotte1

  • 1Cedars-Sinai Medical Center, Los Angeles, CA, USA.

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

A hospital screening program identified 23% more dementia cases in older patients. Early identification of cognitive impairment can improve patient care and reduce healthcare costs.

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Area of Science:

  • Gerontology
  • Neurology
  • Health Services Research

Background:

  • Over 40% of elderly hospital patients have Alzheimer's disease or related dementias (ADRD), with underdiagnosis common.
  • Hospital settings often miss ADRD cases, impacting patient care and outcomes.

Purpose of the Study:

  • To implement and evaluate a comprehensive program for identifying cognitive impairment in hospitalized patients.
  • To assess differences in healthcare utilization based on cognitive impairment status.

Main Methods:

  • Modified electronic health records (EHR) to flag patients with ADRD.
  • Screened patients aged 65+ using the 4AT screen, followed by the AD8 dementia interview for positive screens.
  • Analyzed screening rates and used regression models to compare length of stay, readmission, and prior utilization by cognitive status.

Main Results:

  • The screening program identified 22.6% more dementia cases, flagging 454 patients with positive dementia interviews.
  • Patients with ADRD or positive screens were older, non-white, admitted from medical services, and had higher prior healthcare utilization.
  • Undiagnosed cognitive impairment correlated with longer hospital stays and more prior hospitalizations; diagnosed ADRD was linked to higher 90-day readmissions.

Conclusions:

  • A systematic screening program significantly increased the identification of likely dementia in hospitalized older adults.
  • Early and systematic identification of cognitive impairment can enhance patient outcomes, optimize healthcare resource use, and lower care expenses.