Table 3. Univariate analyses on metastatic lymph nodes for the correlation with distribution of metastases (brain, lung, bone or liver).

	Brain metastases			Lung metastases			Bone metastases			Liver metastases
	Yes	No	p-value	Yes	No	p-value	Yes	No	p-value	Yes	No	p-value
HER2 overexpression (% cases)	54	36	ns	31	57	ns	40	47	ns	56	39	ns
ER positivity (% cases)	8	21	ns	23	7	ns	20	12	ns	0	22	ns
PR positivity (% cases)	8	7	ns	8	7	ns	20	0	ns	0	11	ns
%Ki67-expressing tumor cells	28	18	< 0.05	24	22	ns	20	28	ns	21	28	ns
p16 score in tumor cells	7	1.7	< 0.001	6	3	ns	4	6	ns	5	5	ns