rate

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Related to false-negative rate: false negative error, True positive

rate

1. 
a. a price or charge with reference to a standard or scale
b. (as modifier): a rate card
2. a charge made per unit for a commodity, service, etc.
3. a wage calculated against a unit of time

rate

[rāt]
(science and technology)
The amount of change of some quantity during a time interval divided by the length of the time interval.
References in periodicals archive ?
On the downside, the procedure is highly operator dependent, requires special training by a pathologist and is associated with an appreciable false-negative rate of 9.
Because the subdermal lymphatics are partially obstructed, contain tumour emboli, and are functionally abnormal, the false-negative rate for SLNB in this population may be unacceptably high [29].
TABLE 4 Niton Soil Measurement Methods and Corresponding False-Negative Rates Niton Soil Number of Number of Measurement False-Negative Positive Laboratory Method Readings (<400 ppm) Results ([greater than or equal to]400 ppm) Surface readings 13 62 (Test Cup 2) Bagged readings 13 62 (Test Cup 2) Test Cup 1 1 57 (Test Cup 1) (prepared by grinding) Test Cup 2 2 62 (Test Cup 2) (prepared by grinding and sieving) Niton Soil False-Negative Measurement Rate Method Surface readings 21% Bagged readings 21% Test Cup 1 2% (prepared by grinding) Test Cup 2 3% (prepared by grinding and sieving)
We accepted a false-negative rate of less than 5%, as recommended by the consensus group, and accepted a manual review rate of less than 30%, according to our capacity for smear review and the average review rate of the CAP survey.
A false-negative rate of 23% on a single lateral view of the cervical spine was reported by Bachulis et al.
The false-negative rate can be reduced by serial sectioning to reduce sampling error and rapid IHC for epithelial markers but producing a reliable result within an intraoperative time (usually approximately 40 minutes), often on multiple SLNs, can cause logistical problems.
The false-negative rate, based on 5 women out of 422, is 1.
Figure 1 shows that four quantitative characteristics [sensitivity (Se), specificity (Sp), positive predictive value (PPV), and negative predictive value (NPV)] are defined by two properties of the screening method (the false-positive rate, or, and the false-negative rate, [3) and by a property of the danger being assessed, the frequency of true hazards, P[H], where H is a true hazard.
But the Pap test is only a screening tool, with a false-negative rate of from 10 to 20 percent in the best laboratories -- meaning that the test fails to detect uterine or cervical cancer 10 to 20 percent of the time.
Jackson also reported that with the IEC, ADA, and VA/DoD cutoffs for diabetes, screening with HbA1C was specific but insensitive, with a false-negative rate of 68% at the 6.
Troponin testing, for example, has proven valuable because its false-negative rate is low.