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Comparison of the prognostic accuracy of AJCC‐TNM staging system and AJCC‐TNM + PFC staging system in GC with stage I and N0
| Stage I | pT1‐4aN0 | ||||
|---|---|---|---|---|---|
| TNM | TNM + PFC | TNM | TNM + PFC | ||
| OS analysis | c‐ index | 0.659 | 0.702 | 0.714 | 0.748 |
| CSS analysis | c‐ index | 0.688 | 0.735 | 0.730 | 0.769 |
c‐ index, concordance index; OS, overall survival; CSS, cancer‐specific survival; PFC1, plasma fibrinogen concentration.
