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Prevention & Screening (Types (Multiple Screening: There are numerous…
Prevention & Screening
Disease Prevention
- Secondary: These are ways to stop or slow down disease progression by targeting at-risk groups
- Tertiary: This manages/rehabilitates individuals with diagnosed health conditions to improve quality of life
- Primary: This aims to prevent disease from occurring in the first place.
Interpretative Epi
- The control of the health problem is attempted.
Definition: This involves the development of appropriate programs and services to address health problems.
- prevention of new cases, eradication of existing cases, etc.
Screening: This is a test to classify people according to their likelihood of having or developing a disease (do not currently show any clinical signs of the disease).
Types
- Multiple Screening: There are numerous tests at once
- Targeted Screening: The groups known to be at high risk
- Mass Screening: The whole population
- Case-finding (Opportunistic) Screening: This is done at time of contact
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Bias
- Length Time Bias: This slowly progressive disease more likely than rapidly progressing disease to be detected by screening.
- Volunteer Bias: choose to be involved, better awareness of health, better outcomes.
- Lead Time Bias: People will get a diagnosis earlier than they would have without the screening so appear to have the disease for longer.