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Questions and Answers
What does prevalence measure?
What does prevalence measure?
- Rate of new cases of a disease during a time period
- Proportion of a population found to have a condition (correct)
- Proportion of newly diagnosed cases of a disease
- Burden of disease in a population
What does incidence measure?
What does incidence measure?
- Rate or proportion of new cases of a disease during a time period (correct)
- Proportion of newly diagnosed cases of a disease
- Proportion of a population found to have a condition
- Burden of disease in a population
What is the difference between fixed/closed and dynamic/open populations?
What is the difference between fixed/closed and dynamic/open populations?
- Fixed populations are based on a condition, while dynamic populations are based on an event
- Fixed populations are transient, while dynamic populations are permanent
- Fixed populations are permanent, while dynamic populations are transient (correct)
- Fixed populations are based on an event, while dynamic populations are based on a condition
What does prevalence measure in terms of disease?
What does prevalence measure in terms of disease?
What does incidence measure in terms of disease?
What does incidence measure in terms of disease?
What does prevalence measure?
What does prevalence measure?
Which type of population membership is based on an event and is permanent?
Which type of population membership is based on an event and is permanent?
What does incidence measure?
What does incidence measure?
Which type of population membership is based on a condition and is transitory?
Which type of population membership is based on a condition and is transitory?
What does prevalence measure in terms of disease burden?
What does prevalence measure in terms of disease burden?
What does prevalence measure?
What does prevalence measure?
What does incidence measure in terms of disease?
What does incidence measure in terms of disease?
Which type of population membership is based on an event and is permanent?
Which type of population membership is based on an event and is permanent?
What does prevalence measure in terms of disease burden?
What does prevalence measure in terms of disease burden?
Which type of population membership is based on a condition and is transitory?
Which type of population membership is based on a condition and is transitory?
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Study Notes
Epidemiological Measures
- Prevalence measures the total number of cases of a disease or condition in a population at a specific point in time or over a specific period.
Population Types
- Fixed/Closed population: A population in which membership is based on an event (e.g., birth) and is permanent.
- Dynamic/Open population: A population in which membership is based on a condition (e.g., residency) and is transitory.
Disease Measurement
- Prevalence measures the total disease burden in a population, including new and existing cases.
- Incidence measures the number of new cases of a disease or condition that occur in a population over a specific period.
Population Membership
- Fixed/Closed population membership is based on an event and is permanent, such as being part of a birth cohort.
- Dynamic/Open population membership is based on a condition and is transitory, such as being a resident of a particular city.
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