Table 4 Analysis of the population with TBC failure

TBC failure population (n, %)

20 (20.2)

3 (3.0)

< 0.001*

  The reason for TBC failure

    Cryoprobe failure to arrive at the lesion

19 (19.2)

1 (1.0)

< 0.001*

      Upper lobe position

15 (15.2)

0 (0)

< 0.001*

      Non-upper lobe position

4 (4.0)

1 (1.0)

0.174

    Lesion too thick

1 (1.0)

2 (2.0)

0.561

  Diagnostic accuracy of TBB

15/20 (75)

3/3 (100)

0.328