Table 4 The relationship between tumor cells and tumor-infiltrating immune cells for PD-L1 expression
Variables | Overall | Tumor cells PD-L1(−) | Tumor cells PD-L1(+) | r | P value |
|---|---|---|---|---|---|
Tumor-infiltrating immune cells PD-L1(−) | 226 | 172(76.1%) | 54(23.9%) | 0.160 | 0.002 |
Tumor-infiltrating immune cells PD-L1(+) | 152 | 93(61.2%) | 59(38.8%) |