Which of the following is NOT a mortality-based measurement?

• A. Crude mortality rates
• B. Age adjusted mortality
• C. Age specific mortality
• D. Morbidity Rate

Answer: (D)

Mortality-based measurements count deaths to understand the burden of death in a population. Crude mortality rate is the total number of deaths in a year per a given population size. Age-adjusted mortality rate modifies those death counts to account for differences in age structure, using a standard population so comparisons are fair. Age-specific mortality rate looks at deaths within a particular age group per people in that age group.

Morbidity rate, by contrast, measures illness—how many people have a disease or condition (incidence or prevalence). It focuses on non-fatal health events rather than deaths. So the metric that is not mortality-based is morbidity rate.