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8221 Social & Preventive Medicine

Due to an effective prevention program, the prevalence 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
CIts negative predictive value has increased
DThe test's characteristics have not changed
Social & Preventive Medicine
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