At the beginning of 1999, 2.3% of the Australian population were estimated to be infected with Hepatitis C virus (HCV).During the year 1999, a further 16,000
Individuals were found to have HCV.From this information we can conclude:
A)The incidence rate is 2.3%
B)The point prevalence is 2.3%
C)The incidence proportion is 2.3%
D)None of the above

Question

Quizplus · Accepted Answer

The point prevalence is 2.3% at the beginning of 1999.We are told that 2.3%
of the population were infected at the start of the year - as they are already infected
this is a measure of prevalence.As we do not know the total population at risk of HCV
infection we cannot calculate either an incidence rate (A) or incidence proportion (C).

At the Beginning of 1999, 2