# OnCo record data-maturity (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 xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/data-maturity/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "data-maturity" ;
  schema:name "Data maturity (immature vs mature survival data)"@en ;
  schema:alternateName "OS immature"@en, "immature OS"@en, "immature data"@en, "immature survival data"@en, "overall survival data are immature"@en, "OS data immature"@en, "mature OS"@en, "mature survival"@en, "event-driven"@en, "number of events"@en, "information fraction"@en, "censored"@en, "censoring"@en, "censored at"@en, "OS trend"@en, "OS not yet reached"@en, "not reached"@en, "not estimable"@en, "median not reached"@en, "median OS not reached"@en ;
  schema:description "Survival results are 'immature' when too few patients have died (or progressed) for the comparison to be reliable, so medians are 'not reached' and confidence intervals are wide. Mature data come with time and events; early positive looks can fade or strengthen."@en ;
  schema:url <https://onco.cc/terms/data-maturity/> ;
  schema:dateModified "2026-09-09"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Censoring_(statistics)> ;
  schema:citation <https://en.wikipedia.org/wiki/Censoring_(statistics)> ;
  onco:related <https://onco.cc/terms/interim-analysis/>, <https://onco.cc/terms/landmark-survival/>, <https://onco.cc/terms/os/>, <https://onco.cc/terms/hazard-ratio/>, <https://onco.cc/terms/primary-endpoint/>, <https://onco.cc/terms/kaplan-meier-curve/>, <https://onco.cc/terms/sample-size-re-estimation/> ;
  onco:sections <https://onco.cc/fronts/drug-discovery/> ;
  onco:trials <https://onco.cc/trials/adaura/>, <https://onco.cc/trials/keynote-522/> .