Table 2.
RLN visual identification | RLN identification with IONM | ||||||
---|---|---|---|---|---|---|---|
Year | Number of patients | RLNs at risk (100%) | RLNs identification | Number of patients | RLNs at risk (100%) | RLNs identification | p value Chi- squared test |
2011 | 11 | 22 | 8(36%) | – | – | – | |
2012 | 7 | 13 | 9(69.2%) | 9 | 15 | 11(73.3%) | p = 0.8106 |
2013 | 4 | 7 | 2(28.6%) | 13 | 21 | 20(95.2%) | p = 0.0002 |
2014 | 2 | 3 | 1(33.3%) | 15 | 24 | 24(100%) | p < 0.0001 |
Total | 24(100%) | 45(100%) | 20(44.4%) | 37(100%) | 60(100%) | 55(91.6%) | p < 0.001 |