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Epidemiological Methods in Studies of Symptoms in Advanced Disease
Author Bios
Why Study Advanced Disease?
Why Epidemiology?
Incidence and Prevalence
Using Incidence and Prevalence
Definition of a Case
Defining Time, Place, Person
Types of Study Design
Cross-Sectional Studies
Longitudinal Studies
Measurement
Bias
Selection Bias
Measurement Bias
Currently selected selection: Presenting and Interpreting Results
Practical Example
Calculating Prevalence
Conclusion


Chapter 19: Epidemiological Methods in Studies of Symptoms in Advanced Disease: Presenting and Interpreting Results
         


Question 14.5

Do you think that the prevalence of severe breathlessness is likely to be the same in the group of patients who attend when you were off work sick in the rest of the sample?
Selection AYes
Selection BNo

Question 14.6

In how many patients out of the 200 is the prevalence of severe breathlessness likely to be 50%?
Selection A100
Selection B120
Selection C140
Selection D150

Question 14.7

In these 140 patients, how many are likely to have had breathlessness?
Selection A140
Selection B120
Selection C90
Selection D70

Question 14.8

How many patients would have severe breathlessness if all of those that you did not interview, because of refusal, they were too ill or they died, had severe breathlessness?
Selection A90
Selection B100
Selection C120
Selection D130

Question 14.9

What would be the prevalence of breathlessness if this were the case?
Selection A50%
Selection B55%
Selection C60%
Selection D65%

 

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