Epidemiology

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1. What is prevelence?

  • proportion of people who have a specific condition at any specified time - the number of new and exsisting cases / the total population
  • No. of new events occurring in a defined population during a specified period of time
  • the cumulative incidence of infection in a population observed over a period of time during an epidemic
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2. What is morbidity?

  • the relative incidence of a disease
  • number of deaths in a population per unit time
  • measures the odds of exposure for cases compared to controls

3. What are the final 3 steps in an outbreak investigation?

  • Implementation of control measures -> environmental investigation -> conclusion and dissemination of findings
  • Implementation of control measures -> case control study -> conclusion and dissemination of findings
  • preliminary epidemiologic investigation -> environmental investigation -> Specimen collection & lab analysis

4. Which of these best describes Epidemiology?

  • The study of the distrubition and determinants of health-related states or events in a specified population, and the application of the study to control health problems
  • The study of health-related states or events in a specified population, and the application of the study to control health problems
  • The study of epidemics and pandemics

5. A cohort study examines....

  • a study in which conditions are in direct control of the investigator
  • any designated group individuals who are followed or traced over time
  • diseases for which medical care is sought

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