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Question:
A study is conducted to ascertain the risk factors contributing to asthma in a group of youth ages 9 to 12. About 422 residents, ages 9 to 12, have agreed to participate in the study. Given the study’s objective, what is the best approach to use?
Correct Answer: A. Case-control
Since the participants are already in the target range, the best choice to determine potential risk factors is a retrospective case-control study (perform histories and determine the odds ratios for each risk factor). A cohort study would involve younger children being grouped by a risk factor one wishes to test and then determine the incidence of asthma over time in each of the groups. Clinical trials require some sort of intervention/therapy, and meta-analysis refers to aggregating other studies/analyses to support a given conclusion.
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Category: BiostatisticsA study is conducted to ascertain the risk factors contributing to asthma in a group of youth ages 9 to 12. About 422 residents, ages 9 to 12, have agreed to participate in the study. Given the study’s objective, what is the best approach to use?
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