Podcast
Questions and Answers
What assumptions are made when calculating risk (incidence proportion) and incidence odds?
What assumptions are made when calculating risk (incidence proportion) and incidence odds?
- Open population with competing risks
- Closed population with competing risks
- Open population without competing risks
- Closed population without competing risks (correct)
Which term is used to describe the frequency of new disease events or outcomes occurring in a given follow-up period?
Which term is used to describe the frequency of new disease events or outcomes occurring in a given follow-up period?
- Incidence Rate (correct)
- Risk Ratio
- Prevalence Rate
- Odds Ratio
What does person-time at risk refer to in data analysis?
What does person-time at risk refer to in data analysis?
- The time each person is followed up in a cohort study
- The total time of follow-up for all persons in the study population (correct)
- The time elapsed since the last event occurred
- The time taken to calculate the odds ratio
Which of the following is another name for incidence density?
Which of the following is another name for incidence density?
What happens to the risk assumptions with longer periods of follow-up in cohort studies?
What happens to the risk assumptions with longer periods of follow-up in cohort studies?
What is the definition of risk or incidence proportion?
What is the definition of risk or incidence proportion?
What does risk range from in terms of values?
What does risk range from in terms of values?
What does risk represent in terms of probability?
What does risk represent in terms of probability?
In what unit is risk measured?
In what unit is risk measured?
What is the calculation for incidence proportion if A represents the number of new cases of disease or outcomes during ∆t and N0 represents the number of persons at risk at the start of the time period?
What is the calculation for incidence proportion if A represents the number of new cases of disease or outcomes during ∆t and N0 represents the number of persons at risk at the start of the time period?
What does it mean when risk is a function of events over time?
What does it mean when risk is a function of events over time?
What is the Risk Difference (RD) in the first practice problem?
What is the Risk Difference (RD) in the first practice problem?
In the first practice problem, what does a Risk Ratio (RR) of 2.0 indicate?
In the first practice problem, what does a Risk Ratio (RR) of 2.0 indicate?
What does an Incidence Rate Difference (IRD) of 0 indicate?
What does an Incidence Rate Difference (IRD) of 0 indicate?
What range does the Incidence Rate Ratio (IRR) cover?
What range does the Incidence Rate Ratio (IRR) cover?
How is the Risk Difference (RD) interpreted in practice problem #4?
How is the Risk Difference (RD) interpreted in practice problem #4?
What is the interpretation of the Risk Ratio (RR) in practice problem #4?
What is the interpretation of the Risk Ratio (RR) in practice problem #4?
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