Assessment of the external validity of the AJCC 8 th staging system for small intestinal adenocarcinoma: a time to reconsider the role of tumor location?
Background: The current study evaluates the validity and performance of the 8 th edition of the American Joint Committee on Cancer (AJCC) staging system for small intestinal adenocarcinoma patients. - Methods: Surveillance, Epidemiology and End Results (SEER) database [2004-2015] was explored a...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2019
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| In: |
Journal of gastrointestinal oncology
Year: 2019, Jahrgang: 10, Heft: 3, Pages: 421-428 |
| ISSN: | 2219-679X |
| DOI: | 10.21037/jgo.2019.01.15 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.21037/jgo.2019.01.15 Verlag, Volltext: http://jgo.amegroups.com/article/view/26771 
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| Verfasserangaben: | Hani Oweira, Omar Abdel-Rahman, Arianeb Mehrabi, Christoph Reissfelder |
MARC
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| 245 | 1 | 0 | |a Assessment of the external validity of the AJCC 8 th staging system for small intestinal adenocarcinoma |b a time to reconsider the role of tumor location? |c Hani Oweira, Omar Abdel-Rahman, Arianeb Mehrabi, Christoph Reissfelder |
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| 520 | |a Background: The current study evaluates the validity and performance of the 8 th edition of the American Joint Committee on Cancer (AJCC) staging system for small intestinal adenocarcinoma patients. - Methods: Surveillance, Epidemiology and End Results (SEER) database [2004-2015] was explored and AJCC 6th, 7 th , and 8 th versions were assigned for each patient. Through Kaplan-Meier estimates, overall survival analyses were conducted. Cox regression analysis (adjusted for age, race, gender, sub-site, grade and surgical treatment) was conducted for cancer-specific survival and additionally, pairwise hazard ratio comparisons were performed. - Results: A total of 2,997 small intestinal adenocarcinoma patients were eligible and included in the analysis. Overall survival was compared according to the three AJCC staging systems. For the three versions, the P value for the trend in overall survival was significant (P th and 8 th stages were also performed, and all comparisons were significant (P vs . IIIA. C-statistic (using death from small intestinal adenocarcinoma as the dependent variable) for AJCC 6th staging system was: 0.645 [standard error (SE): 0.011; 95% CI: 0.623-0.668]; for c-statistic for AJCC 7 th staging system was 0.658 (SE: 0.011; 95% CI: 0.637-0.680); while c-statistic for AJCC 8 th staging system was 0.660 (SE: 0.011; 95% CI: 0.638-0.682). Multivariate analysis of factors affecting cancer-specific survival suggested that older age (P=0.005), higher lymph node ratio (P Conclusions: There is no evidence that AJCC 8 th system provided better prognostic characterization compared to previous AJCC staging systems for small intestinal adenocarcinoma. Subsite-specific staging paradigms should be explored in future editions of the staging system. | ||
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