Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 4

Two cities each had a population of 1,000,000. The death rate from all causes in Desert City was 500 or 50 per 100,000. The death rate from all causes in Sun City was 800 or 80 per 100,000. Cancer deaths in both cities were 4 per 100,000 or 40 deaths per city. The risk of cancer-caused death for both cities was the same. Calculate the PMR for cancer in each city.

Step 1 of 3

Proportional mortality ratio (PMR) is the ratio of the deaths caused by a specific factor to the total number of death that occur during the same time interval. PMR is quite useful in the determination of the extent to which a specific factor affects the mortality rates within a particular population.