TITLE

CALCULATING PREDICTIVE VALUES

AUTHOR(S)
Stewart, Scott H.; Connors, Gerard J.
PUB. DATE
March 2004
SOURCE
Alcohol Research & Health;2004/2005, Vol. 28 Issue 1, p14
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The article reports that both the positive and the negative predictive value depend on the prevalence of the disorder in the population. This is illustrated with the hypothetical example of using the AUDIT to screen for at-risk drinking in a population of 1,000 primary care patients, assuming two different prevalence rates for at-risk drinking in that population. With a sensitivity of 85 percent, 170 of the 200 at- risk drinkers would test positive and would be true positives, and 30 patients would test negative and would be false negatives.
ACCESSION #
18933422

 

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