Provide an example of a fixed population and an example of a dynamic or open population. Explain the significance of each population type as related to the examples you provided.

Answer these epidemiology questions.

1.
a. Provide an example of a fixed population and an example of a dynamic or open population.
b. Explain the significance of each population type as related to the examples you provided.

2.Complete the following exercise correctly. Please refer to the Fact Sheet and MMWR Report to answer the questions.

We discussed the importance of defining the case during the lecture and reviewed the evolution of the case definition for HIV. The case definition for HIV infection was further revised in 2014. List and justify 3 attributes of the new definition in comparison to previous definitions based on information in the Fact Sheet: Terms, Definitions, and Calculations Used in CDC HIV Surveillance (December 2016) and the MMWR Report, April 11, 2014.
Direct link, Fact Sheet: https://www.cdc.gov/hiv/pdf/statistics/systems/nhbs/cdc-hiv-terms-surveillance-publications-2014.pdf Links to an external site.

Direct link, MMWR Report: http://www.cdc.gov/mmwr/preview/mmwrhtml/rr6303a1.htm?s_cid=rr6303a1_e Links to an external site.

3.You are studying hypertension among smokers and nonsmokers. We have 300 smokers,700 nonsmokers, 500 individuals with hypertension, and 500 without. There are 250 smokers with hypertension and 250 nonsmokers with hypertension. Create a 2×2 table with the above information and compare the incidence rate of smokers with hypertension and nonsmokers with hypertension.