300 people live in burns, oregon. as of jan 1, 2013, 16 of them had diabetes. during 2013, 4 new cases were diagnosed. a) calculate the prevalence (expressed as a percent) on jan 1, 2013. b) calculate the incidence during 2013 (express "per 1000"--dont' forget to include the time period). partial credit will be given, so show your work (and both answers) in the text box below.

a).- Prevalence=5.33%

b).-Incidence during 2013=14 people

Step-by-step explanation:

Definition

Prevalence is the proportion of a population that has a specific characteristic in a given period.

For a representative sample, prevalence is the number of people in the sample with the characteristic of interest, divided by the total number of people in the sample.

The prevalence (expressed as a percent) on Jan 1, 2013 was

In percent:

Prevalence= *100

Prevalence=5.33%

Incidence is a measure of the number of new cases of a characteristic that develops in a population in a specified period

the incidence during 2013 is

n=(300-16)=284 people on Jan 1, 2013

Incidendence during 2013=

Answer=14 people