J Korean Cancer Assoc.  1999 Feb;31(1):43-53.

Comparision between New Version of UICC-TNM Classification with Old Versions Including Japanese Classifications of Gastric Cancer Patientw

• Bae SS
• Lee JI
• Moon NM
• Paik NS
• Choi DW
• Hwang DY
• Bang HY
• Noh WC

Abstract

PURPOSE: This study was designed to examine the reliability and easy applicability of new version of UICC-TNM classification (UICC, 1997) compared with old version of UICC-TNM classification (UICC, 1992) and JRSGC (Japanese Research Society for Gastric Cancer) classification of gastric cancer.
MATERIALS AND METHODS
For 1043 patients who underwent curative resection from Jan. 1992 to Dec. 1996 in Korea Cancer Center (KCCH), old version of UICC-TMN classification and JRSGC classification were compared with the new version of UICC-TNM classification.
RESULTS
Correlation coefficient between topographic classification (old UICC-TNM, JRSGC) of lymph node and numeric classification was 0.9 (p<0.05). 5-year survival rates according to old UICC, TRSGC, new UICC classification were 94.9% at stage Ia; 96.6, 96.5, 97.1% at stage Ib; 73.8, 73.8, 73.0% at stage II; 54.1, 55.8, 58.0% at stage IIIa; 35.5, 42.0, 36.0% at stage IIlb; 25.9, 22.3, 23.9% at stage IV. 5-year survival rates of each classification had significant difference among stages (p<0.0001), but there was no significant difference among each classification.
CONCLUSION
The new version of UICC-TNM classification based on the number of involved lymph nodes allows a staging system as reliable as the old version of UICC-TNM and JRSGC classification. In addition, the new version of UICC-TNM classification can be applied without methodologic problems and seems more convenient and reproducible.

Keyword

Gastric cancer; Lymph node metastasis; Intemational Union Against Cancer (UICC); Japanese Research Society for Gastric Cancer (JRSGC)

MeSH Terms

Asian Continental Ancestry Group*
Classification*
Humans
Korea
Lymph Nodes
Stomach Neoplasms*
Survival Rate