Table 6 Distributions of TDLNs, PDLNs, and NDLNs and the positive rate for N(+) CRC patients, N(+) CRC patients with ≤ 21 TDLNs, or N(+) CRC patients with > 21 TDLNs according to the pathological N status
From: A reappraisal of lymph node dissection in colorectal cancer during primary surgical resection
Part I | Nodal positive (n = 42) | N1 (n = 17) | N2 (n = 25) | p value* |
No. of TDLNs (mean ± SD) | 21.2 ± 12.0 | 18.3 ± 10.9 | 23.2 ± 12.6 | 0.199 |
No. of PDLNs (mean ± SD) | 6.2 ± 5.5 | 1.6 ± 0.7 | 9.3 ± 5.2 | < 0.001 |
Positive rate (mean ± SD, %) | 31.5 ± 23.3 | 12.8 ± 11.9 | 44.1 ± 20.5 | < 0.001 |
No. NDLNs (mean ± SD) | 15.0 ± 10.6 | 16.7 ± 10.8 | 13.9 ± 10.5 | 0.409 |
Part II | No. of PDLNs (mean ± SD) | |||
Nodal positive (n = 42) | N1 (n = 17) | N2 (n = 25) | ||
No. of TDLNs ≤ 21 (n=25, N1/N2, 12/13) | 3.4 ± 3.8 | 1.6 ± 0.7 | 6.9 ± 3.6 | |
No. of TDLNs > 21 (n=17, N1/N2, 5/12) | 8.9 ± 6.6 | 1.6 ± 0.9 | 11.9 ± 5.4 | |
p value** | 0.007 | 0.907 | 0.011 | |