USMLE Forums - View Single Post - A physician is deciding.....
View Single Post
Old 05-31-2010
achistikbenny achistikbenny is offline
USMLE Forums Veteran
Steps History: 1 + CK
Posts: 234
Threads: 63
Thanked 137 Times in 68 Posts
Reputation: 167
Stats A physician is deciding.....

A physician is deciding whether to use a new test to screen for disease X in his practice. The prevalence of disease
X is 5%. The sensitivity of the test is 85%, and the specificity is 75%. In a population of 1000, how many patients
will have the diagnosis of disease X missed by this test?

A. 50
B. 42
C. 8
D. 4
Reply With Quote