discriminant function

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dis·crim·i·nant func·tion

a particular combination of continuous variable test results designed to achieve separation of groups; for example, a single number representing a combination of weighted laboratory test results designed to discriminate between clinical classes.

discriminant function

Any algorithm or assessment tool to evaluate disease severity or guide clinical or administrative decisions in health care. In gastroenterology, e.g., a discriminant function is commonly used to gauge the severity of alcoholic hepatitis. It uses two variables, the patient's measured protime (PT) and total serum bilirubin level. The difference between the patient's PT and the control PT is multiplied by 4.6 and added to the bilirubin level. If the derived number is greater than 32, the patient may benefit from treatment with corticosteroids or pentoxifylline.
See also: function
References in periodicals archive ?
There was no significant difference between the number of EN readings (n) used to obtain the discriminant functions (P < 0.
that produce infections of long duration, do not multiply in the host, and that have a relatively high abundance in at least one geographic locality were subjected to discriminant function analysis.
Differential diagnosis between hepatocellular carcinoma and cirrhosis through a discriminant function based on biochemical serum analytes.
The loadings of predictors into discriminant functions and the standardized discriminant function coefficients can be found in Table 2.
Mean and standard deviations of some hematologic parameters and discriminant functions of blood samples from pregnant subjects with different hemoglobin types A2A (n = 77) EA (n = 27) EE (n =10) Fl 1689.
We first use a step by step selection algorithm of the most pertinent financial ratios in order to build up a linear discriminant function that best allows discriminating between two categories of companies.
For every variable of landform index, terrain shape index and transformed slope aspect, a discriminant function is determined and gained at error level of 1% significant.
The antibiotic resistance growth patterns of each isolate were compared using discriminant function analysis (DA).
This study establishes the discriminant functions based on 3 groups of cross-forested nursing mothers in identifying the effects of response of the subjects towards the species odor.
The first 6 canonical discriminant functions were used in the analysis.
431 (a) First 1 canonical discriminant functions were used in the analysis.
Subjective knowledge accuracy and all three involvement variables contributed significantly to the linear discriminant function (p < .