3 Measures of disease frequency
Section 1.2 introduced prevalence, risk and rate informally. This section defines them precisely, gives the probability models under which they are estimated, derives confidence intervals, and proves the relations between them. The measures of association in the next sections are ratios and differences of these quantities, so everything there rests on what is done here.
3.1 Prevalence
3.2 Risk
3.3 Incidence rate and person-time
3.4 Prevalence, incidence and duration
3.5 Specific and crude rates
3.6 Problems
3.2 Risk
3.3 Incidence rate and person-time
3.4 Prevalence, incidence and duration
3.5 Specific and crude rates
3.6 Problems
Questions on this section
Stuck on something here? Ask below and it stays attached to this topic.