Table 3 Lymph node ratio
Level | IIb sparing | Control group | ||||
|---|---|---|---|---|---|---|
Harvested | Positive | Ratio (%) | Harvested | Positive | Ratio (%) | |
Level Ia | 36 | 0 | 0 | 62 | 0 | 0 |
Level Ib | 66 | 1 | 1.5 | 95 | 3 | 3.1 |
Level IIa | 92 | 1 | 1 | 142 | 0 | 0 |
Level IIb | – | – | – | 123 | 0 | 0 |
Level III | 52 | 0 | 0 | 115 | 0 | 0 |
Total | 259 | 2* | 0.77 | 561 | 3* | 0.53 |