Table 2.
Nodal size in millimeters in different patient or lymph node groups
| Groups compared | p Value | ||
| Comparison 1 | Node negative CRCs | Node positive CRCs | |
| Mean nodal size (SD) | 4.3 (2.4) | 4.6 (2.6) | <0.05 |
| Comparison 2 | Node negative CRCs | Node positive CRCs | |
| Mean nodal and TDN size (SD) | 4.3 (2.4) | 4.7 (3.0) | <0.01 |
| Comparison 3 | NNs | PNs | |
| Mean nodal size (SD) | 4.2 (2.3) | 6.0 (3.4) | <0.005 |
| Comparison 4 | NNs | PNs and TDNs | |
| Mean nodal size (SD) | 4.2 (2.3) | 6.3 (4.1) | <0.005 |
| Comparison 5 | Node negative CRCs | Node positive CRCs | |
| Mean smallest nodes (SD) | 1.7 (0.8) | 1.7 (0.8) | NS |
| Comparison 6 | Node negative CRCs | Node positive CRCs | |
| Mean largest nodes (SD) | 7.7 (3.2) | 9.9 (5.6) | <0.05 |
CRC, colorectal carcinoma; NN, negative node; NS, not significant; PN, positive (metastatic) node; TDN, perirectal or pericolic tumour deposit ≥3 mm with no evidence of residual nodal elements.