Which option correctly states how to calculate crude mortality rate per 1,000?

Which option correctly states how to calculate crude mortality rate per 1,000?

• A. Deaths per 100 population
• B. Deaths ÷ population total x 1,000
• C. Population ÷ deaths x 1,000
• D. Deaths ÷ population total x 10

Answer: (C)

The main idea is to express how many people die relative to the size of the population, scaled to 1,000 people. To get the crude mortality rate per 1,000, you divide the number of deaths in the period by the total population at risk, then multiply by 1,000. This standardizes the count so you can compare mortality across populations of different sizes. So the correct approach is to use deaths ÷ population total × 1,000. The inverse (population divided by deaths, then times 1,000) would not represent a mortality rate, and multiplying by 10 would express deaths per 10 people, not per 1,000.

The main idea is to express how many people die relative to the size of the population, scaled to 1,000 people. To get the crude mortality rate per 1,000, you divide the number of deaths in the period by the total population at risk, then multiply by 1,000. This standardizes the count so you can compare mortality across populations of different sizes.

So the correct approach is to use deaths ÷ population total × 1,000. The inverse (population divided by deaths, then times 1,000) would not represent a mortality rate, and multiplying by 10 would express deaths per 10 people, not per 1,000.