Table 2. Relationship between axillary non-sentinel lymph node status and number of SLNs analyzed.

Number of SLNs	OSNA+91		OSNA++88		Number of SLNs (%)
	57		61
1	ALND Negative	ALND Positive	ALND Negative	ALND Positive	118 (66%)
	47 (+)	10 (+)	30 (++)	31 (++)
	28		24
	ALND Negative	ALND Positive	ALND Negative	ALND Positive
	18 (−/+)	5 (−/+)	6 (−/++)	7 (−/++)
2	3 (+/+)	2 (+/+)	1 (+/++)	5 (+/++)	52 (29%)
	−	−	1 (++/++)	4 (++/++)
	6		3
	ALND Negative	ALND Positive	ALND Negative	ALND Positive
	3 (−/−/+)	−	1 (+/+/++)	1 (+/++/++)
3/4	1 (−/+/+)	2 (−/+/+)	−	1 (−/−/−/++)	9 (5%)
Total	72	19	39	49	179

SLN: sentinel lymph node;

OSNA: one step nucleic acid amplification;

OSNA+: >250≤5000 cytokeratin 19 mRNA copies/µl; OSNA++: >5000 cytokeratin 19 mRNA copies/µl;

ALND: axillary lymph node dissection.