Fig. 2

Estimated HR summary for OS. a LODDS1 vs. LODDS0, b LODDS2 vs. LODDS0, c LODDS3 vs. LODDS0, d LODDS4 vs. LODDS0. HR > 1 indicates more disease progression or deaths in the patients. Data were pooled using a random-effects model (REM). All statistical values were combined with 95% CIs and two-sided P-values, the threshold of which was set to 0.05. Abbreviations: HR, hazard ratio; OS, overall survival; LODDS, log odds of positive lymph nodes