Table 3 The comparison of fluorescent tracing and methylene blue tracing

SLN identification rate (%)

194

99.0 (192/194)

92.8 (180/194)

99.0% (192/194)

< 0.0001a

SLN counts (median (IQR))

194

3 (2)

2 (2)

3 (2)

< 0.0001c

False-negative rate (%)

37

0 (0/37)

8.1 (3/37)

0 (0/37)

0.105b

Sensitivity (%)

37

100 (37/37)

91.9 (34/37)

100 (37/37)

0.105b

Metastatic SLN rate (%)

194

19.1 (37/194)

17.5 (34/194)

19.1 (37/194)

0.903a

Metastatic SLN counts (median (IQR))

37

1 (1.5)

1 (0)

1 (1.5)

0.014c