positive predictive value

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positive predictive value

Statistics The number of true positives divided by the sum of true positives–TP and false positives–FP, a value representing the proportion of subjects with a positive test result who actually have the disease, aka 'efficiency' of a test. Cf Negative predictive value, ROC–receiver operating characteristic.

pos·i·tive pre·dic·tive val·ue

(poz'i-tiv prĕ-dik'tiv val'yū)
The probability that a positive result accurately indicates that the analyte or the specific disease is present.

Positive predictive value (PPV)

The probability that a person with a positive test result has, or will get, the disease.
Mentioned in: Genetic Testing

predictive value

a measure used by clinicians to interpret diagnostic test results. See also sensitivity, specificity.

positive predictive value
the probability that a patient with a positive test result really does have the condition for which the test was conducted.
negative predictive value
the probability that a patient with a negative test result really is free of the condition for which the test was conducted.
References in periodicals archive ?
The Precision Rate is declared monthly for newly issued contracts, and is subject to change annually.
Dataiku also ultimately allowed SendinBlue to be more accurate in their validation, thereby increasing their email reputation; the first iteration of their model leverages Random Forest and has an 83 percent precision rate on email address classification.
Precision rate (P) is defined as the ratio of correctly detected and recognized characters to sum of correctly detected and recognized characters plus false positives.
The Superphone also has a Le Touch feature that makes its fingerprint sensor's precision rate at 99.
The precision rate reflects the ability of rejecting irrelevant scene images according to the following formula:
The precision rate for a positive on test for normal union was 41% and for delayed union is 83%.
W = 100 was determined to be the most effective value with a precision rate of 85% (Fig.
Sakaki said the chimpanzee's chromosome 22 was mapped at a precision rate of 99.
5% precision rate, partners using the client have experienced a 68% containment rate on customer inquiries.
Inertial Products specializes in small and very small precision rate gyro assemblies for specialized, space-critical applications.

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