Question

A case-control study investigates the association between exposure to a new antibiotic and the development of Clostridium difficile infection (CDI). The data are summarized as follows: • Cases (with CDI): 120 were exposed to the antibiotic, 80 were not exposed. • Controls (without CDI): 60 were exposed to the antibiotic, 140 were not exposed. What is the odds ratio (OR) for developing CDI associated with antibiotic exposure? 2 4.2 3.5 1.8 2.8

Name: a case control study investigates the association between exposure to a new antibiotic and the development of clostridium difficile infection cdi the data are summarized as follows cases wit 55762
Uploaded: 2023-03-01T23:44:37-08:00
Duration: 1 min 14 s
Channel: Lucas Finney
Description: a case control study investigates the association between exposure to a new antibiotic and the development of clostridium difficile infection cdi the data are summarized as follows cases wit 55762

          A case-control study investigates the association between exposure to a new antibiotic and the development of Clostridium difficile infection (CDI). The data are summarized as follows:
• Cases (with CDI): 120 were exposed to the antibiotic, 80 were not exposed.
• Controls (without CDI): 60 were exposed to the antibiotic, 140 were not exposed.
What is the odds ratio (OR) for developing CDI associated with antibiotic exposure?
2
4.2
3.5
1.8
2.8

a case control study investigates the association between exposure to a new antibiotic and the development of clostridium difficile infection cdi the data are summarized as follows cases wit 55762

Added by Gary S.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Lucas Finney

03/01/2023

Step 1

In a case-control study, the odds ratio is calculated as: $$OR = \frac{\text{Odds of exposure among cases}}{\text{Odds of exposure among controls}}$$ Alternatively, using a 2x2 table: | | Exposed | Not Exposed | Total | |---|---|---|---| | Cases | a | b | a+b | | Show more…

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A case-control study investigates the association between exposure to a new antibiotic and the development of Clostridium difficile infection (CDI). The data are summarized as follows: • Cases (with CDI): 120 were exposed to the antibiotic, 80 were not exposed. • Controls (without CDI): 60 were exposed to the antibiotic, 140 were not exposed. What is the odds ratio (OR) for developing CDI associated with antibiotic exposure? 2 4.2 3.5 1.8 2.8