Table 2.

Compare organ metastasis patterns between male and female patients with esophageal cancer.

	Male		Female
	N = 3454		N = 615		P value
Variable	n	%	n	%
Bone metastasis only	482	14.0	67	10.9	.041∗
Brain metastasis only	95	2.8	10	1.6	.105∗
Liver metastasis only	1238	35.8	204	33.2	.202∗
Lung metastasis only	483	14.0	151	24.6	<.001∗
Bone and brain	29	0.8	4	0.7	.809∗∗
Bone and liver	268	7.8	40	6.5	.278∗
Bone and lung	117	3.4	20	3.3	.864∗
Brain and liver	39	1.1	3	0.5	.147∗
Brain and lung	20	0.6	6	1.0	.268∗∗
Liver and lung	466	13.5	74	12.0	.326∗
Bone, brain, and liver	14	0.4	5	0.8	.192∗∗
Bone, brain, and lung	11	0.3	5	0.8	.081∗∗
Bone, liver, and lung	140	4.1	22	3.6	.578∗
Brain, liver, and lung	27	0.8	2	0.3	.300∗∗
Bone, brain, liver, and lung	25	0.7	2	0.3	.416∗∗
One site metastasis	2298	66.5	432	70.2	.071∗
Two sites metastasis	939	27.2	147	23.9	.090∗
Three sites metastasis	192	5.6	34	5.5	.976∗
Four sites metastasis	25	0.7	2	0.3	.416∗∗

^∗Pearson chi-squared test.

^∗∗Fisher exact test.