Question 1 of 3  

An observational study in diabetics assesses the role of an increased plasma fibrinogen level on the risk of cardiac events.  130 diabetic patients are followed for 5 years to assess for the development of acute coronary syndrome.  In a group of 60 patients with a normal baseline plasma fibrinogen level, 20 develop acute coronary syndrome and 40 do not.  In a group of 70 patients with a high baseline plasma fibrinogen level, 40 develop acute coronary syndrome and 30 do not.  Which of the following is the best estimate of relative risk in patients with a high baseline plasma fibrinogen level compared to patients with a normal baseline plasma fibrinogen level?

Question 2 of 3  

Question 3 of 3

At a specific hospital, patients diagnosed with pancreatic carcinoma are asked about their current smoking status.  At the same hospital, patients without pancreatic carcinoma are also asked about their current smoking status.  The following table is constructed.