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Autor(en) / Beteiligte
Titel
The assessment of Ki-67 as a prognostic marker in neuroendocrine tumours: a systematic review and meta-analysis
Ist Teil von
  • Journal of clinical pathology, 2016-07, Vol.69 (7), p.612-618
Ort / Verlag
England: BMJ Publishing Group LTD
Erscheinungsjahr
2016
Quelle
BMJ Journals Archiv - DFG Nationallizenzen
Beschreibungen/Notizen
  • IntroductionGastroenteropancreatic neuroendocrine tumours (GEP NETs) are classified according to tumour mitotic count or Ki-67 labelling index (LI).Aim(s)To systematically review articles reporting the prognosis of patients by Ki-67 LI and thereby improve the ability of clinicians to prognosticate for their patients.Method265 abstracts were identified relating Ki-67 and survival. After exclusion criteria were applied, 22 articles remained. Articles were excluded if they described non-human specimens, were non-English language, published prior to 2000, reported non-GEP NETs, reported subgroups selected by treatment modality or included <20 cases. Random-effects meta-analysis was used to combine studies to estimate survival proportions.ResultsAuthors used varied methods in which to present 5-year survival, with often limited survival information. This reduced the number of studies that could be included in the meta-analysis. 5-year survival for patients with grade 1 and 2 GEP NETs were estimated to be 89% (95% CI 85% to 92%, m=12 studies, n=977 participants) and 70% (95% CI 62% to 79%, m=9, n=726), respectively. Using an alternative grade 1/2 boundary of 5%, 5-year survival rates for Ki-67≤5% and 5–20% were estimated as 89% (95% CI 84% to 94%, m=7, n=654) and 51% (95% CI 44% to 59%, m=4, n=183), respectively. For Ki-67>20%, 5-year survival was estimated to be 25% (95% CI 12% to 38%, m=10, n=208).ConclusionsStandardisation of grade boundaries has allowed us to combine data from multiple studies and amass a body of evidence linking Ki-67 and survival.
Sprache
Englisch
Identifikatoren
ISSN: 0021-9746
eISSN: 1472-4146
DOI: 10.1136/jclinpath-2015-203340
Titel-ID: cdi_proquest_miscellaneous_1808694114

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