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Programmed death ligand-1 (PD-L1) expression in colon cancer
| Number of PD-L1 positive tumour cells | Entire cohort (N = 572) (%) | MSI (N = 172) (%) | MSS (N = 400) (%) |
|---|---|---|---|
| None | 264 (46) | 47 (27) | 217 (54) |
| 0 < PD-L1 ≤ 1% | 233 (41) | 73 (42) | 160 (40) |
| 1% < PD-L1 ≤ 5% | 40 (7) | 21 (12) | 19 (5) |
| < 5% PD-L1 ≤ 20% | 10 (2) | 8 (5) | 2 (1) |
| < 20% PD-L1 ≤ 50% | 11 (2) | 10 (6) | 1 (0) |
| PD-L1 > 50% | 14 (2) | 13 (8) | 1 (0) |
Abbreviations: MSI Microsatellite instability, MSS sMicrosatellite stable
