Table 2.

Comparison of organ metastasis patterns between male and female patients with breast cancer.

Parameter	Male		Female		p value
	N = 196		N = 15,923
	n	%	n	%
Bone metastasis only	81	41	6948	44	0.517*
Brain metastasis only	2	1	250	2	0.744**
Liver metastasis only	5	3	1274	8	0.005*
Lung metastasis only	26	13	1848	12	0.471*
Bone and brain	4	2	298	2	1**
Bone and liver	9	5	1483	9	0.023*
Bone and lung	43	22	1716	11	<0.0001*
Brain and liver	1	1	47	0	1**
Brain and lung	0	0	133	1	0.415***
Liver and lung	1	1	433	3	0.094**
Bone, brain, and liver	1	1	118	1	1**
Bone, brain, and lung	9	5	205	1	<0.0001*
Bone, liver, and lung	10	5	895	6	0.754*
Brain, liver, and lung	1	1	55	0	1**
Bone, brain, liver, and lung	3	2	220	1	1**

^*Pearson chi-squared test.

^**Chi-squared test of continuity correction.

^***Fisher’s exact test.