Fig. 4From: Factors affecting number of lymph nodes harvested and the impact of examining a minimum of 12 lymph nodes in stage I-III colorectal cancer patients: a retrospective single institution cohort study of 1167 consecutive patientsCumulative survival rates of the 440 enrolled patients with stage III colorectal cancer (CRC) who underwent curative resection as assessed by the Kaplan-Meier method. The differences in survival rates were analyzed by the log-rank test. a The overall survival was significantly lower in the low-harvest group (<12 LNs examined) than in the high-harvest group (≧12 LNs examined). b The disease-free survival was also considerably lower in the low-harvest group than in the high-harvest groupBack to article page