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PD-L1 expression stratified by specimen type and clinically relevant tumor proportion score (TPS) cutoff values
| PD-L1 TPS | Overall (n=232) | Cytology Cell-block Specimen (n=94) | Surgical Pathology Specimen (n=138) | p-value |
|---|---|---|---|---|
| <1% PD-L1 TPS | 87 (37.5%) | 35 (37.2%) | 52 (37.7%) | 0.4 |
| 1–49% PD-L1 TPS | 55 (23.7%) | 20 (21.3%) | 35 (25.3%) | |
| ≥50% PD-L1 TPS | 81 (34.9%) | 33 (35.1%) | 48 (34.8%) | |
| Failed analysis | 9 (3.9%) | 6 (6.4%) | 3 (2.2%) |
P-value via Fisher’s exact test.
