Which statement correctly contrasts mortality with morbidity?

Which statement correctly contrasts mortality with morbidity?

• A. Mortality counts deaths in a population over a period; morbidity measures disease or disability prevalence at a point in time
• B. Mortality measures disability; morbidity measures deaths
• C. Mortality and morbidity are the same concept
• D. Mortality measures births; morbidity measures deaths

Answer: (A)

Mortality and morbidity describe different aspects of population health. Mortality counts deaths in a population over a defined period, typically expressed as a rate per 1,000 or 100,000 people each year. Morbidity reflects the presence of disease or disability in the population at a specific moment, i.e., the prevalence at a point in time. This distinction is why the statement is correct: it captures mortality as deaths over time and morbidity as disease or disability prevalence at a single point in time. The other options mix up the concepts or claim they are the same, which does not fit how these measures are used in epidemiology.

Mortality and morbidity describe different aspects of population health. Mortality counts deaths in a population over a defined period, typically expressed as a rate per 1,000 or 100,000 people each year. Morbidity reflects the presence of disease or disability in the population at a specific moment, i.e., the prevalence at a point in time.

This distinction is why the statement is correct: it captures mortality as deaths over time and morbidity as disease or disability prevalence at a single point in time. The other options mix up the concepts or claim they are the same, which does not fit how these measures are used in epidemiology.