receiver operating characteristic

(redirected from Receiver operator curve)

re·ceiv·er op·er·at·ing char·ac·ter·is·tic (ROC),

a plot of the sensitivity of a diagnostic test as a function of nonspecificity (one minus the specificity). The ROC curve indicates the intrinsic properties of a test's diagnostic performance and can be used to compare the relative merits of competing procedures.
Farlex Partner Medical Dictionary © Farlex 2012


(kar?ak-te-ris'tik) [Gr. charakteristikos, pert. to a stamp]
1. A trait or character typical of an organism or of an individual.
2. In logarithmic expressions, the number to the left of the decimal point, as distinguished from the mantissa, the number to the right of the decimal point.

acquired characteristic

A trait or quality that was not inherited but is the result of environmental influence.

anal characteristic

Anal personality.

dominant characteristic

See: dominant

primary sex characteristic

An inherited trait that influences the development of the reproductive organs.

receiver operating characteristic

Receiver operating curve.

recessive characteristic

Recessive gene.

secondary sex characteristic

A gender-related physical attribute that normally develops under the influence of sex hormones at puberty. Voice quality, facial hair, and body fat distribution are examples.

sex-conditioned characteristic

A genetic trait carried by both sexes but expressed or inhibited by the sex of the individual.

sex-limited characteristic

A trait present in only one sex even though the gene responsible is present in both sexes.

sex-linked characteristic

A trait controlled by genes on the sex chromosomes. The X and Y chromosomes determine sex but also carry genes unrelated to sex.
Synonym: sex-linked gene
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Each model in this current study showed good discriminative power as assessed by area under the ROC (Receiver operator curve) while APACHE II showed better discriminative power than SAP II and SOFA due to its greater value(.83) of area under ROC (Receiver operator curve) as compare to.75 for both SAPS II and SOFA.
The Receiver Operator Curve for total cholesterol, HDL-c, TG, TC/HDL and TG/HDL ratio yielded 0.555, 0.526, 0.912, 0.548 and 0.913 areas under the curve.
Table-3: Receiver operator curve characteristics for significant lipid measurments in predicting atheroma formation in metabolic syndrome
Qualitative (non parametric)--Chi square test used to calculate sensitivity, specificity, cutoff value and area under receiver operator curve. Quantitative--t-test used to calculate mean, standard deviation.
The predictive cut-off value of CCR was calculated by using Area under Receiver operator curve (ROC) and it was 0.04.
The predictive cut-off value of microalbuminuria was calculated by using Area under Receiver operator curve (ROC) and it was > 30-300 mg/L.
The subgroup analysis showed EBV-DNA had larger areas under the summary receiver operator curve when compared with VCA-IgA in high quality and low quality studies.
The largest area of diagnosis under the summary receiver operator curve (AUC) for NPC by overall
The area under receiver operator curves (AUROC) of doppler sonography was calculated for diagnosing PVT in patients compared to the CT scan (Figure).

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