Which statement best describes the relationship between exposure and disease status in the two-by-two table cells a and c?

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Multiple Choice

Which statement best describes the relationship between exposure and disease status in the two-by-two table cells a and c?

Explanation:
In a 2x2 table, the two cells in question both show disease, but one has exposure and the other does not. The first cell is Exposed and Disease; the second cell is Unexposed and Disease. The relationship is that disease occurs in both exposure groups, while exposure status differs between the two. This means you can’t judge whether exposure changes disease risk from these two cells alone—you’d need the other two cells (exposed without disease and unexposed without disease) to assess the association.

In a 2x2 table, the two cells in question both show disease, but one has exposure and the other does not. The first cell is Exposed and Disease; the second cell is Unexposed and Disease. The relationship is that disease occurs in both exposure groups, while exposure status differs between the two. This means you can’t judge whether exposure changes disease risk from these two cells alone—you’d need the other two cells (exposed without disease and unexposed without disease) to assess the association.

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