# OnCo record ppv (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/ppv/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "ppv" ;
  schema:name "Positive predictive value (PPV)"@en ;
  schema:description "Positive predictive value (PPV) is the chance that a positive test result is actually right: true positives divided by all positives. Because it falls as a disease becomes rarer, even a specific screening test gives mostly false alarms when prevalence is low, which is why PPV decides whether a multi-cancer blood test is useful."@en ;
  schema:url <https://onco.cc/terms/ppv/> ;
  schema:dateModified "2026-09-04"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Positive_and_negative_predictive_values> ;
  owl:sameAs <http://www.wikidata.org/entity/Q3553769> ;
  schema:citation <https://en.wikipedia.org/wiki/Positive_and_negative_predictive_values> ;
  onco:technologies <https://onco.cc/technologies/mced/> .