Journal of clinical medicine
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The proportion of the number of involved lymph nodes (LNs) to the number of examined LNs-defined as metastatic LN ratio (mLNR)-has been considered as a prognostic parameter. This study aims to elucidate the prognostic implication of the mLNR in colorectal cancer (CRC) according to the tumor location. ⋯ Our results showed that high mLNR was significantly correlated with worse survival. The number of involved LNs and mLNRs were significantly higher in rectal cancer than in colon cancer. The cutoff of 0.2 can be useful for the differentiation of prognostic groups, regardless of tumor location.