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The number of patients according to the correlated expressions for MHC class I and PD-L1.
| PD-L1 | ||||
|---|---|---|---|---|
| Negative | Positive | Total | ||
| MHC class I | None | 9 | 11 | 20 (12.7) |
| Weak | 21 | 29 | 50 (31.6) | |
| Strong | 25 | 63 | 88 (55.7) | |
| Total | 55 (34.8) | 103 (65.2) | 158 | |
HNSCC head and neck squamous cell carcinoma, PD-L1 programmed death-ligand 1, MHC major histocompatibility complex.
