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Comparison of PD-1/PDL-1 in cancer tissues and PPB of the remission and the non-remission (cases, %).
| Groups | n | Cancer tissue PD-1 | Cancer tissue PDL-1 | PPB PD-1 | PPB PDL-1 |
|---|---|---|---|---|---|
| The non-remission | 27 | 26 (96.30) | 24 (88.89) | 19 (70.37) | 13 (48.15) |
| The remission | 45 | 29 (64.44) | 17 (37.78) | 15 (33.33) | 11 (24.44) |
| χ2 | 9.492 | 17.980 | 9.288 | 4.267 | |
| P | 0.002 | < 0.001 | 0.002 | 0.039 |
