This information is used for the next 2 questions A hospital epidemiologist was

Question

This information is used for the next 2 questions A hospital epidemiologist was called to investigate an outbreak of severe intravenous catheter infections among patients cared for in the hospital. During the past one year, 20 severe infections occurred out of 5,000 hospitalized patients. This frequency represents a large increase over the previous two years, when there were only 11 and 9 serious IV catheter infections per year, respectively. Which one of the following designs design would you chose to evaluate the cause of this outbreak? Randomized Controlled Trial Factorial Design for Randomized Controlled Trial Case-Control Design Before-After design with imputed orthoganal contrasts Ecological Design

Explanation / Answer

In this regard, a randomised trail can give perfect result but only if all the factors are managed in a controllable way with which a perfect outcome can be possible on the whole.

(b) Factorial Design for Randomised Controlled Trial is the answer

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