Over the course of a year, there were 42 cases of institution-associated pneumonia at a hospital. During that time, 3,102 clients were at risk for acquiring this infection, with 20,411 client-days
Which is the crude incidence rate of institution-associated pneumonia at this hospital?
A) 0.21%
B) 1.35%
C) 1.52%
D) 15.20%
Ans: B
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Crude incidence rate is calculated by dividing the number of occurrences or cases of a health problem by the number of people in the population who are at risk for the health problem. In this case, the following equation would result: 42/3,102 = 0.0135 = 1.35%.
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