The calculation of epidemiological measures often involves collecting data from various sources such as surveillance systems, health records, and surveys. For incidence rates, the formula is:
Incidence Rate = (Number of New Cases / Population at Risk) x 100,000
For prevalence, the formula is:
Prevalence = (Number of Existing Cases / Total Population) x 100
Mortality rates are calculated as:
Mortality Rate = (Number of Deaths / Population) x 1,000
Case-fatality rate is calculated as:
Case-Fatality Rate = (Number of Deaths from Disease / Number of Diagnosed Cases) x 100
