Table 3.
Study sample demographics and clinical characteristics of patients with LNM+ and LNM- rectal cancer.
| Characteristics | Training group | P | Testing group | P | ||
|---|---|---|---|---|---|---|
| LNM+ | LNM- | LNM+ | LNM- | |||
| Sex, No. (%) | 0.525 | |||||
| male | 32 (78%) | 42 (72.4%) | 13 (76.5%) | 11 (44%) | 0.174 | |
| female | 9 (22%) | 16 (27.6%) | 4 (23.5%) | 14 (56%) | ||
| Age (IQR) | 66 (59.5-73) |
68 (55.75-73.25) |
0.991 | 68.53 ± 9.04 | 64.52 ± 9.55 | 0.176 |
| Long-axis diameter, mm(IQR) | 8.84 (6.73-11.7) |
7.15 (5.53-8.98) |
0.002 | 8.74 (6.87-13.1) |
6.88 (5.44-8.02) |
0.02 |
| Short-axis diameter, mm(IQR) | 7.29 (5.25-10.28) |
5.06 (4.21-6.29) |
<0.001 | 6.8 (5.28-9.88) |
4.97 (3.89-6.08) |
0.002 |
| T stage, No. (%) | 0.005 | <0.001 | ||||
| 1 | 0 (0%) | 10 (17.2%) | 0 (0%) | 5 (20%) | ||
| 2 | 8 (19.5%) | 19 (32.8%) | 0 (0%) | 10 (40%) | ||
| 3 | 27 (65.9%) | 26 (44.8%) | 13 (76.5%) | 10 (40%) | ||
| 4 | 6 (14.6%) | 3 (5.2%) | 4 (23.5%) | 0 (0%) | ||
| CEA, ng/ml(IQR) | 4.53 (3.42-11.08) |
3.31 (1.93-5.51) |
0.003 | 3.69 (1.94-9.51) |
3.2 (1.88-7.86) |
0.663 |
IQR, interquartile range.