Table 1.

Comparison of PD-L1 TPS categories from CBs and LTRs

	LTR specimens
	<1%	1–49%	≥50%	n(%)
CB specimens
<1%	34	8	1	43 (53.1)
1–49%	13	5	5	23 (28.4)
≥50%	0	3	12	15 (18.5)
n (%)	47 (58.0)	16 (19.8)	18 (22.2)	81

PD-L1, programmed death ligand-1; TPS, tumor proportion score; CB, cell block; LTR, lung tumor resection.