Table 5.
Depth of invasion | No. of resected LNs | n | Recurrence rate2 | r | P |
pT1-2 | 0-14 | 8 | 5 (62.5) | -0.253 | 0.0011 |
15-19 | 33 | 11 (33.3) | |||
20-24 | 40 | 8 (20.0) | |||
25-29 | 28 | 5 (17.8) | |||
≥ 30 | 18 | 1 (5.6) | |||
pT3-4 | 0-14 | 10 | 8 (80.0) | -0.405 | 0.0001 |
15-19 | 16 | 9 (56.2) | |||
20-24 | 23 | 8 (34.8) | |||
25-29 | 16 | 4 (25.0) | |||
≥ 30 | 19 | 3 (15.8) |
Significance of differences was assumed at P < 0.01;
Recurrence within 5 years after surgery.