A Case-Control Study Was Needed to Determine an Association Between

question 9

Multiple Choice

A case-control study was needed to determine an association between the exposure (tobacco) and outcome (lung disease) . If the control group (non-smokers) has the same incidences of lung cancer as the smoking group, which additional factor may be a contributor to the disease?

• A) General environment
• B) Brand of cigarettes smoked
• C) The average age of each group
• D) The duration of smoking

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Definitions:

Somalia

A country located in the Horn of Africa, known for its long coastline, cultural heritage, and significant challenges including political instability, piracy, and humanitarian crises.