Which of the following statements is true about the differences between prevalence and
incidence? (select one best answer)
A)The denominator of prevalence only includes the population at risk of developing the disease whereas the
denominator of incidence includes the whole population
B)Prevalence is a measure a risk but incidence is not
C)Prevalence refers to existing cases at one point in time whereas incidence refers to new cases over a
specific time period.
D)Prevalence refers to new cases at one point in time whereas incidence refers to existing cases over a
specific duration