4) Ethnicity
Some diseases are more prevalent in certain ethnic groups around the globe. For example, African people are less susceptible to catch malaria due to their genetic makeup. Similarly, certain ethnic groups such as African Americans, Asian Americans, Hispanic Americans, and Native Americans carry a greater risk of developing both types of diabetes than non-Hispanic whites.
Recent researches also suggest that ethnicity can also affect the age of disease onset. It is found that the average age difference in the appearance of diabetic signs and symptoms is 3-4 years.
