negative predictive value (NPV)

Related concept: positive predictive value «A test performance characteristic, defined as the proportion of persons who do not have the disease among those who have a negative diagnostic test result

it is calculated as follows: true negatives ÷ (true negatives + false negatives). Note: The NPV varies with the prevalence of the disease in the population of interest.»

and • provides information on costs and financial impact. Note 2: The report may optionally discuss organisational considerations. Note 3: A “mini-HTA” may be as rigorous as an HTA report but typically has a restricted scope and so is quicker to produce. Note 4: Related terms include health technology, HTA report, rapid review, level of evidence