CD274 and metastatic malignant neoplasm in the lymph nodes: Upon univariate analysis, lymph node metastasis, site, and tumoral PD-L1 expression (≥1%, 5%, 10%, 20%, or 30%) were associated with DFS and OS, and on multivariate analysis, lymph node metastasis, site, and tumoral PD-L1 expression (≥5%, 10%, 20%, or 30%) were associated with DFS and OS (Table 2 and 3).