Question: n a case - control study, to determine whether the risk factor is associated with the disease, the ideal controls should have the same characteristics

n a case

-

control study, to determine whether the risk factor is associated with the disease, the ideal controls should have the same characteristics as the cases.

True or False?

6 .

In a case

-

control study, subjects who have a disease are identified and their past exposure to suspected causal factors is compared with that of controls.

True or False?

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