title: [The Comparison between 6th and 7th International Union Against Cancer/American Joint Committee on Cancer Classification for Survival Prognosis of Gastric Cancer].
abstract: OBJECTIVE
  The tumor-node-metastasis (TNM) staging is an useful system to assess the prognosis of any solid cancer. As new TNM staging classification of 7th stomach cancer was revised in 2009, we evaluated the prognostic predictability of the 7th International Union Against Cancer/American Joint Committee on Cancer (UICC/AJCC) TNM classification compared to 6th UICC/AJCC TNM classification in gastric cancer.
  
  
  METHODS
  From January 2000 to December 2009, 5-year survival rates of 266 patients with gastric cancer were calculated by the 6th and 7th UICC/AJCC TNM classification.
  
  
  RESULTS
  Using the 7th UICC/AJCC TNM classification, there was no significant difference in the 5-year cumulative survival rates (5 YSR) between stage IIA and IIB, IIB and IIIA, and IIIA and IIIB (70% vs. 71%, p=0.530; 71% vs. 80%, p=0.703; 80% vs. 75%, p=0.576, respectively) though significant differences of the survival rates were observed among stages of 6th edition. Using T stage of 7th edition, 5 YSR was not different between T2 and T3 (86% vs. 82%, p=0.655). Using N stage of 7th edition, 5 YSR were not different between N1 and N2, N3a and N3b (79% vs. 81%, p=0.506; 41% vs. 17%, p=0.895, respectively).
  
  
  CONCLUSIONS
  The 7th UICC/AJCC TNM classification had poor prognostic predictability in gastric cancer compared to the 6th edition.
authors: Departments of Internal Medicine and Surgery, Hallym University College of Medicine, Seoul, Korea.
authors: Su Sun
authors: SS
authors: Kim
authors: Bo Youn
authors: BY
authors: Choi
authors: Seung In
authors: SI
authors: Seo
authors: Min Young
authors: MY
authors: Jung
authors: Hyuk Su
authors: HS
authors: Choi
authors: Sung Min
authors: SM
authors: Ahn
authors: Won Hyuk
authors: WH
authors: Choi
authors: Hyoung Su
authors: HS
authors: Kim
authors: Kyung Ho
authors: KH
authors: Kim
authors: Myoung Kuk
authors: MK
authors: Jang
authors: Jin Heon
authors: JH
authors: Lee
authors: Hak Yang
authors: HY
authors: Kim
authors: Woon Geon
authors: WG
authors: Shin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011237:Predictive Value of Tests; D011379:Prognosis; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000145:classification / Q000175:diagnosis* / Q000401:mortality* / Q000473:pathology; D015996:Survival Rate