Table V.

Intra-observer agreement of the PD-L1 molecule TPS assessments into three categories by pathologist 1 (junior) and pathologist 2 (senior).

A, Pathologist 1-WKI: 0.779 (CI, 0.665–0.893)
	2nd TPS assessment, n
1st TPS assessment, n	<1%	1–49%	≥50%	Total, n
<1%	38	4	0	42
1–49%	9	14	1	24
≥50%	0	0	14	14
Total, n	47	18	15	80
B, Pathologist 2-WKI: 0.804 (CI, 0.703–0.905)
	2nd TPS assessment, n
1st TPS assessment, n	<1%	1–49%	≥50%	Total
<1%	40	2	0	42
1–49%	7	12	2	21
≥50%	0	2	15	17
Total, n	47	16	17	80

WKI, weighted κ index; TPS, tumor proportion score.