Rates provide a measure of how quickly new cases of a disease occur in a population. They are an essential aspect of epidemiological studies and can be categorized as:
Crude Rates: Simply the total number of cases divided by the total population. Adjusted Rates: Rates that have been statistically modified to eliminate the effect of differences in composition of various populations. Specific Rates: Rates calculated for specific subgroups, such as age-specific or sex-specific rates.
