Fig. 2From: Efficacy of upfront hepatectomy without neoadjuvant chemotherapy for resectable colorectal liver metastasisInverse probability of treatment weighting (IPTW). IPTW shows there is no significant difference in the recurrence-free survival (RFS) rate between the patients who received neoadjuvant chemotherapy (the NAC+ group) and those who did not (the NAC− group) (P = 0.724)Back to article page