Comparison of prognostic prediction models for rectal gastrointestinal ...
A prognostic predictive nomogram was developed, and a cut-off value of 65 points was calculated by X-tile to discriminate risk based on tumor size and mitotic rate. The C-indices for the FD-ZS, FD-Hou, NIH, and WHO systems were 0.706, 0.693, 0.687, and 0.680, respectively. Conclusion: In the present study, a concise two-tier grading system (FD ...