. 2023 Jan 16;9(2):e13048. doi: 10.1016/j.heliyon.2023.e13048

Table 3.

PD-L1 expression in primary tumours compared to their paired distant metastases.

Distant metastases	Overall (κ = 0.137)		Lung (κ = 0.238)		Liver (κ = 0.112)
P value^a	0.142		0.219		0.115
Primary tumours	Positive	Negative	Positive	Negative	Positive	Negative
Positive	9 (8.1%)	14 (12.6%)	3 (13.6%)	3 (13.6%)	6 (7.6%)	9 (11.4%)
Negative	21 (18.9%)	67 (60.4%)	4 (18.2%)	12 (54.6%)	17 (21.5%)	47 (59.5%)

Note:

Kappa test was used.