Which of the following is a measure of the burden of disease or injury in a population?

• A. The number of healthcare workers per capita.
• B. The proportion of the population with health insurance.
• C. The rate of hospital admissions per 1000 people.
• D. A measure of the burden of disease or injury in a population.

Answer: (D)

Understanding burden means capturing the total impact of disease and injury on a population, not just how many people are affected or how services are used. Burden is typically expressed with summary measures that combine fatal and nonfatal effects, such as years of life lost due to premature death plus years lived with disability. The option that describes a measure of the burden itself aligns with this idea because it directly references quantifying the overall health impact on a population, which is exactly what burden metrics aim to do. In contrast, the rate of hospital admissions per 1000 people reflects health service utilization and case severity among those admitted, not the full population-wide impact. The proportion with health insurance speaks to access and financial protection, not the disease burden. The number of healthcare workers per capita describes health system capacity, not how much disease or injury affects people. In practice, we use metrics like DALYs to quantify the burden by integrating mortality and morbidity into a single measure.