07-02-2010, 07:45 AM
An experimental diagnostic test is developed to noninvasively detect the presence of trisomy 21, Down's syndrome. The test is administered to a group of 500 women considered to be at risk for a Down's fetus based on blood tests. The results of this test are shown above. What is the sensitivity of this new test?
A. 40%
B. 50%
C. 67%
D. 71%
E. 83%
A. 40%
B. 50%
C. 67%
D. 71%
E. 83%