A group of scientists seeks to find out what causes hospital-acquired bacteremia caused by methicillin-resistant Staphylococcus aureus (MRS A). Following MRSA was identified from a blood sample collected from them on the third or subsequent day after admission, 45 patients were recruited in the research. In addition, 90 individuals admitted to the hospital during the same time period with a duration of stay of more than two days who did not have bacteremia were chosen at random. The frequency of variables such as central line or urine catheter placement and surgical site infection was then compared between the two groups. Which of the following null hypotheses is most relevant for this study?

Question

Quizplus · Accepted Answer

Eductional Objective: In case-control studies, the odds ratio (OR) is a measure of relationship. It measures the link between an exposure and a disease; its null value (i.e., null hypothesis value) is always 1 (i.e., OR = 1).

A Group of Scientists Seeks to Find Out What Causes