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Table 2 PD-1, CD4, CD8, HIF-1α, and HIF-2α expression according to PD-L1 results

From: Prognostic significance of the programmed death ligand 1 expression in clear cell renal cell carcinoma and correlation with the tumor microenvironment and hypoxia-inducible factor expression

   PD-L1 Staining Test Statistics (χ2; P)
Negative n (%) Positive n (%)
PD-1 Mild 92 (73.6) 6 (30.0) 14.961; 0.000
Dense 33 (26.4) 14 (70.0)
CD4 Mild 64 (51.2) 2 (10.0) 11.801; 0.001
Dense 61 (48.8) 18 (90.0)
CD8 Mild 66 (52.8) 2 (10.0) 12.682; 0.000
Dense 59 (47.2) 18 (90.0)
HIF-1α Low 55 (44.0) 11 (55.0) 0.841; 0.359
High 70 (56.0) 9 (45.0)
HIF-2α Low 57 (45.6) 4 (20.0) 4.636; 0.031
High 68 (54.4) 16 (80.0)