SEARCH

SEARCH BY CITATION

Keywords:

  • oral cancer;
  • stage grouping;
  • prognosis;
  • TANIS;
  • multivariate analysis

Abstract

Background

The purpose of this study was to evaluate the prognostic significance of different TNM-based stage groupings proposed in the literature.

Methods

We conducted a retrospective analysis of 300 patients with primary oral squamous cell carcinoma (T1–4, N0–2, M0). The stage grouping systems of the sixth edition of the Union Internationale Contre le Cancer (UICC), T and N Integer Score (TANIS), the Snyderman scheme, the Hart scheme, and the Berg scheme were tested for their prognostic significance. Disease free survival (DFS) was plotted by Kaplan–Meier analysis. Prognostic factors were identified through univariate and multivariate analysis.

Results

On univariate analysis, all systems revealed discriminatory power for DFS; however, on multivariate analysis, only the Hart scheme predicted DFS. The TANIS did not have a better prognostic ability than the UICC stage grouping.

Conclusion

Unlike in previous studies, the UICC stage grouping did perform worse than other TNM-based stage groupings, which may be due to the alterations made in the sixth edition. © 2010 Wiley Periodicals, Inc. Head Neck, 2010