Data Collectionhard
0:00.0
A case-control study of workplace asthma recruits 200 workers with confirmed asthma (cases) and 200 asthma-free workers (controls). Among cases, 100 report chemical exposure; among controls, 50 report chemical exposure. Calculate the odds ratio of asthma for exposed vs. unexposed workers.
A case-control study of workplace asthma recruits 200 workers with confirmed asthma (cases) and 200 asthma-free workers (controls). Among cases, 100 report chemical exposure; among controls, 50 report chemical exposure. Calculate the odds ratio of asthma for exposed vs. unexposed workers.