Table 1.

Correlations between the PD-L1 expression and clinicopathological characteristics.

Variables	PD-L1 expression (%)	No PD-L1 expression (%)	p-Value
No. of patients	24(22)	84(78)
Age (years)			0.393
≤45	4 (16.7)	21 (25.0)
>45	20 (83.3)	63 (75.0)
Menopausal status			0.071
Premenopausal	7 (29.2)	42 (50.0)
Postmenopausal	17 (70.8)	42 (50.0)
Neoadjuvant therapy			0.937
Yes	3 (12.5)	10 (11.9)
No	21 (87.5)	74 (88.1)
Tumor size (cm)			0.035
Median (range)	2.09 (1.0–3.5)	2.49 (1.0–6.0)
No. of PL-1-ALN			0.041
Median (range)	1.79 (0–13)	0.69 (0–11)
Histological grade			0.295
II	12 (50.0)	52 (61.9)
III	12 (50.0)	32 (38.1)
Ki67 status			0.285
≤20	4 (16.7)	23 (27.4)
>20	20 (83.3)	61 (72.6)
Distant metastasis			0.002
Yes	8 (33.3)	7 (8.3)
No	16 (66.7)	77 (91.7)
DFS
Median (range)	72.4 (8–114)	95.4 (9–120)	<0.001