Question
The figure below summarizes the disease status of 10 individuals followed over a period of one year. Be aware that in the figure below: > indicates development of the disease. / indicates death.
a. What is the point prevalence on May 1, 1992? b. What is the cumulative incidence for March 1, 1992 to December 31, 1992? Interpret this measure. c. What is the incidence density from March 1, 1992 to December 31, 1992? Interpret this measure.
d. Which measure estimates risk and which estimates rate? What is the difference? Which measure can be applied to individuals?
