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11240 Social & Preventive Medicine

Due to an effective prevention program, the pre valence of an infectious disease in a community has been reduced by 90%. A physician continues to use the same diagnostic test for the disease that she has always used. How have the test’s characteristics changed?

AIts sensitivity has increased
BIts positive predictive value has increased
CThe test’s characteristics have not changed
DIts negative predictive value has increased
Social & Preventive Medicine
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