Table 1.

Correlation of ER expression with the clinicopathological characteristics of GBC

	ER high		ER low		P‐value
	N = 77	%	N = 46	%
Sexual
Male	20	26.0	14	30.4	.592
Female	57	74.0	32	69.6
Age (y)
<65	32	41.6	18	39.1	.791
≥65	45	58.4	28	60.9
Tumour size (cm)
<4	27	35.1	28	60.9	.005*
≥4	50	64.9	18	39.1
Histological grade
I‐II	42	54.5	26	56.5	.831
III‐IV	35	45.5	20	43.5
TNM stage
I‐II	25	32.5	24	52.2	.031*
III‐IV	52	67.5	22	47.8
Lymph node metastasis
No	53	68.8	32	69.6	.932
Yes	24	31.2	14	30.4
Distant metastasis
No	46	59.7	34	73.9	.111
Yes	31	40.3	12	26.1

χ ² test was performed, P < .05 was considered statistically significant.

^* P < .05.