healthcare science

  1. A blood test to diagnose a disease was performed on a number of patients. Given the following information:

 

Number of patients who have a positive test result and have the disease = 1,491

Number of patients who have a negative test result = 3,149

Number of patients who have a positive test result but don’t have the disease =89

Number of patients who do not have the disease = 3,017

 

a. Construct, label, and completely fill in a 2 x 2 decision table that accurately reflects the data

b. Calculate the false positive rate of the test

c. Calculate the false negative rate of the test

 

  1. Two groups of patients were chosen in order to compare a new treatment with a standard treatment. One group of patients received the new treatment and one group received the standard treatment. Some patients in each group had an adverse outcome and some patients in each group had a good outcome. Given the following data: and the odds ratio for the new treatment compared to the standard treatment:

Number of patients = 4,697

Number of patients who had an adverse outcome with the new treatment = 168

Number of patients who had an adverse outcome with the standard treatment =  205

Number of patients who had a good outcome with the new treatment =  2,257

Number of patients who had a good outcome with the standard treatment =  2,067

 

  1. Create, label, and completely fill in a 2 x 2 table that accurately reflects the data
  2. Calculate the relative risk of an adverse outcome for the new treatment
  3. Calculate the relative risk reduction for the new treatment
  4. Calculate the risk difference
  5. Calculate the number needed to treat for the new treatment
  6. Calculate the odds ratio for the new treatment compared to the standard treatment

 

 

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