Skip to Content
Interactive Textbook on Clinical Symptom Research Logo


Home Button

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

 

Chapter 19: Epidemiological Methods in Studies of Symptoms in Advanced Disease: Defining of a Case

        

 


You Answered:

Selection A20%

Correct

It is 20% (one patient) because patient #5 goes from mild breathlessness to severe breathlessness at this time.

Back to Question