# 11. In a nursing home, a program is launched in 2005 to asses the extent to which it’s residents are affected by diabetes. Each residents are affected by diabetes. Each resident has a blood test, and 48 of the 625 residents have diabetes in 2005. Residents who did not already have diabetes were again tested in 2010, and 57 residents had diabetes. a. What is the prevalence of diabetes in 2005?b. What is the cumulative incidence of diabetes over 5 years?c. What is the prevalence of diabetes in 2010 (assume that none of the residents in 2005 have died or left the nursing home)?

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11. In a nursing home, a program is launched in 2005 to asses the extent to which it’s residents are affected by diabetes. Each residents are affected by diabetes. Each resident has a blood test, and 48 of the 625 residents have diabetes in 2005. Residents who did not already have diabetes were again tested in 2010, and 57 residents had diabetes.

a. What is the prevalence of diabetes in 2005?

b. What is the cumulative incidence of diabetes over 5 years?

c. What is the prevalence of diabetes in 2010 (assume that none of the residents in 2005 have died or left the nursing home)?

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Step 1

(a)

The prevalence of diabetes in 2005 is obtained as follows:

Step 2

Thus, the prevalence of diabetes in 2005 is 0.0768.

(b)

The cumulative incidence of diabetes over 5 years is obtained as follows:

Step 3

Thus, the cumulative incidence of diabetes over 5 years is 0.0988.

(c)

The prev...

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