Table 3.

Comparative analysis of operation record data

	Node positive	Node negative	OR (95%CI)	P value
CEUS operation times
1	10	74	0.278 (0.130–0.596)	.003
2	9	12
Dyed node except CE-SLN
Yes	11	68	0.453 (0.204–1.003)	0.101
No	8	18