Table 1 Incidence of positive and negative LN according to initial T stage and initial N stage
From: Role of elective neck dissection with salvage laryngectomy
| Â | Negative histopathology of LN | Positive histopathology of LN | Chi-square test | ||||
|---|---|---|---|---|---|---|---|
No. | % | No. | % | X2 | p-value | ||
Initial T stage | T1 | 0 | 0% | 0 | 0% | Â | Â |
T2 | 7 | 30% | 1 | 14% | Â | Â | |
T3 | 16 | 70% | 2 | 29% | 15.171 | 0.001 | |
T4 | 0 | 0% | 4 | 57% | Â | Â | |
Initial N stage | N0 | 23 | 100% | 7 | 100% | NA | NA |
N1 | 0 | 0% | 0 | 0% | NA | NA | |