Predictive value Health Dictionary

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Predictive Value: From 1 Different Sources

1 The statistic generated by dividing the number of true positives by the sum of the true positives and false positives. For example, the number of cases with truly good care divided by the sum of the cases with truly good care plus those cases classified with good care who did not receive it i.e. the likelihood that a person classified as the recipient of good care actually received good care. 2 In screening and diagnostic tests, the probability that a person with a positive test result is a true positive (i.e. does have the disease) is referred to as the “predictive value of a positive test”. The predictive value of a negative test is the probability that a person with a negative test does not have the condition or disease. The predictive value of a screening test is determined by the sensitivity and specificity of the test, and by the prevalence of the condition for which the test is used.
Health Source: Community Health
Author: Health Dictionary

Predictive Value Negative

The probability that a person with a negative test is free of the disease and is not a false negative.... predictive value negative

Predictive Value Positive

The probability that a person with a reactive test has the disease and is not a false reaction.... predictive value positive

Dietary Reference Values

(DRVs) a set of statistical terms used to describe nutritional requirements.

EAR estimated average requirement: the amount of energy or a nutrient that will meet the needs of 50% of the population.

RDA recommended daily amount: the average amount of a nutrient that should be provided per head of a group of people if the needs of practically all members of the group are to be met.

LRNI lowest recommended nutrient intake: the amount of a nutrient that provides only 2.5% of the population with their requirements.

RNI reference nutrient intake: the amount that is sufficient for almost 97.5% of individuals in a population. It is the term usually used when expressing dietary requirements.

safe level: used when there is insufficient data to determine the RNI, set as the average requirement plus 20%.

RI reference intake: a guide to how many calories and nutrients an average person can consume each day for a healthy balanced diet. This is used in labelling information for energy, protein, carbohydrate, sugars, fat, saturated fat, fibre, and salt.... dietary reference values

Values

pl. n. (in ethics) the moral standards and principles that govern personal and institutional behaviour. They derive from asking first what makes a good clinician or caring institution and then identifying the attributes, behaviours, actions, and aims appropriate to this end. They include concepts such as truthfulness, kindness, tolerance, and *integrity.... values

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