Over the Course of a Year, There Were 42 Cases

Multiple Choice

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%