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Table 4 Consistency of staining intensity scores for the PD-L1 IHC assay between paired samples

From: Cytology cell blocks from malignant pleural effusion are good candidates for PD-L1 detection in advanced NSCLC compared with matched histology samples

TypePD-L1 staining intensity scoringTotal (n)
01+2+3+
MPE cell blocks2323 + 2a17 + 4a20 + 9a83 + 15a
Histology samples2328 + 10a15 + 4a17 + 1a83 + 15a
  1. Abbreviation: PD-L1 programmed cell death ligand-1, MPE malignant pleural effusion; asamples with discordant tumor proportion scores