A researcher wants to assess whether childhood secondhand smoke exposure can be associated with lung cancer disease. 500 adults participated in the study, and they were divided in a two group based on their childhood check and smoke exposure status. The participants were also requested to report whether they’re diagnosed with lung cancer or not. The incident rate of lung cancer were compared between exposure and exposure group. What type of study design is it?
[Answered]: A researcher wants to assess whether childhood…
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