Social & Preventive Medicine In a case-control study of a suspected association between breast cancer and the contraceptive pill, all of the following are true statements except- A The control should come from a population that has the same potential for breast cancer as the cases B The control should exclude women known to be taking the pill at the time of the survey C All the controls need to be healthy D The attributable risk of breast cancer resulting from the pill may be directly measured π‘ Explanation In a case-control study of a suspected association between breast cancer and the contraceptive pill, all of the following are true statements except- β Correct Answer: D. The attributable risk of breast cancer resulting from the pill may be directly measured