Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of the performance of the 7th, the 8th edition, and the proposed TNM staging system
| Concordance indices | AIC | Likelihood ratio χ 2 | Linear trend χ 2 | ||
|---|---|---|---|---|---|
| C‐index | Bootstrap 95% CI | ||||
| 7th AJCC system | 0.624 | 0.605–0.643 | 1651.95 | 6727.243 | 5917.383 |
| 8th AJCC system | 0.614 | 0.596–0.633 | 1654.69 | 6725.003 | 5886.391 |
| Proposed system | 0.646 | 0.628–0.665 | 1647.30 | 6732.622 | 5955.628 |
