Reference no: EM133504941

We will look at two important terms in epidemiology, prevalence and incidence. As you have read the prevalence looks at the total number of existing cases of a disease in a population at a certain point in time. The incidence is the number of new cases of a disease in a population over a period of time.

1. Explain how incidence and prevalence are related to each other with examples..

2. A study starts with 6,659 healthy people. Over the next 2 years, 175 develop multiple sclerosis. What is the incidence proportion of multiple sclerosis over the study period? Show all work. Look up a journal article on multiple sclerosis and summarize the findings.

3. The country of South Korea had 51.74 million people in 2020, with 8.4 million aged 65 or older. At the end of 2020 South Korea reported 830,000 people aged 65 or older currently had dementia. What is the prevalence of dementia among those aged 65 or older?