Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 9

What role does increasing life expectancy over the last century have on the types of diseases and conditions affecting mankind?

Step 1 of 3

Epidemiologic studies which begun with the studies of diseases that are infectious have now changed to chronic diseases. When one review the WHO (World Health Organization) report then it is clearly indicated that by 2020, deaths due to chronic disease will be about 73% and people who suffers from chronic diseases will be about 60%.