false-positive rate


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Related to false-positive rate: False Negative Rate, false positive error

false-pos·i·tive rate

(fawls-poz'i-tiv rāt)
Percentage of incorrect results that are, in fact, negative.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

false-positive rate

The rate of occurrence of positive test results in those who do not have the attribute or disease for which they are being tested.
See also: rate
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Sequential screening increases both the false-positive rate, with its associated anxiety and concern, and the amniocentesis rate, with the risk of iatrogenic pregnancy loss.
Detection rates at three different false-positive rates were modeled for fetal DNA alone and compared with published data on the univariate performance of the other four serum markers (Table 1).
On the other hand, previous data suggest that saline infusion hydrosonography has a sensitivity ranging from 93% to 100% for predicting focal lesions, with a false-positive rate of just 4%15%, Dr.
These high sensitivities have been accompanied by very low false-positive rates, he added.
found that the false-positive rate of the microtainer-collected samples (13.5%) was significantly better than that of filter paper (19.1%).
But the false-positive rate remains at about 5%-6%, the rate associated with the triple screen.
Recently a prospective study of 15,000 women reported a 90% detection rate with a 5% false-positive rate. There are data from 10 more studies that support that--while the critics focus on one Scottish study that did not perform as well.
It found an 85% detection rate for trisomy 21 with a 9% false-positive rate.
In studies where it has been compared with the triple test, the false-positive rate with hyperglycosylated HCG was half that of the triple test, or about 5%-6%.
The new signatures with a high false-positive rate are deleted through Signature Verifier.
He believes iRhythm investors should hope for a best case result in the Apple Heart Study, or the device detecting a high percentage of atrial fibrillation cases, and with a low false-positive rate. A widely used consumer device with high quality AF screening could be the best way to bring the millions of asymptomatic AF patients into the system, says Marcus.