. 2016 Apr 20;7(21):30504–30510. doi: 10.18632/oncotarget.8851

Table 3. Clinical features and CK19 mRNA levels in SLN(+) patients.

		nSLN Negative (N = 22)	nSLN Positive (N = 38)	P-value
Age(years)		48.00 ± 5.92	49.58 ± 7.78	0.250
Menopause	No	14	24	0.970
Menopause	Yes	8	14	0.970
Tumor size(mm)		32.27 ± 15.78	36.53 ± 19.10	0.307
Total umber of positive lymph nodes		1.45 ± 0.51	11.95 ± 8.42	0.000^*
Grade	1	2	2	0.487
	2	14	20
	3	6	16
lymphatic vessel invasion	No	4	2	0.108
lymphatic vessel invasion	Yes	18	36	0.108
HER2	Positive	8	12	0.705
HER2	Negative	14	8	0.705
ER	Positive	16	30	0.583
ER	Negative	6	8	0.583
PR	Positive	16	28	0.936
PR	Negative	6	10	0.936
CK19	Postive	0	29	0.000^*^#
CK19	Negative	22	9	0.000^*^#
Copies of CK19		120.97 ± 198.16	1136.00 ± 602.03	0.000^*

Abbreviations: HER2, human epidermal growth factor receptor-2; ER, estrogen receptor; PR, progesterone receptor.

χ-test or t-test, p < 0.05.

Fisher's exact test, p < 0.05.