Table 3.
Predictors for metastatic LN status in the training set‐univariate analyses
| Predictors | LN‐ (n = 82) | LN+ (n = 280) | Statistics | p |
|---|---|---|---|---|
| Mean age, y (SD) | 53.06 (12.57) | 59.41 (11.97) | −4.179 a | <0.001 |
| Male, n (%) | 56 (68.3) | 170 (60.7) | 1.553 b | 0.213 |
| Metastatic LNs by MRI, Median (Q) | 0 (2) | 2 (3) | −8.703 c | <0.001 |
| Metastatic LNs by Faster R‐CNN, Median (Q) | 0 (2) | 2 (4) | −8.967 c | <0.001 |
| Differentiation degree, n (%) | ||||
| High | 58 (70.7) | 84 (30.0) | ||
| Moderate | 22 (26.8) | 162 (57.9) | 44.844 b | <0.001 |
| Low | 2 (2.4) | 34 (12.1) | ||
| CEA Level, n (%) | ||||
| Normal | 66 (80.5) | 185 (66.1) | 6.200 b | 0.013 |
| Abnormal | 16 (19.5) | 95 (33.9) | ||
| CA199 Level, n (%) | ||||
| Normal | 76 (92.7) | 248 (88.6) | 1.141 b | 0.285 |
| Abnormal | 6 (7.3) | 32 (11.4) |
N = 362.
Abbreviations: CA199, carbohydrate antigen 199; CEA, carcinoembryonic antigen; Faster R‐CNN, faster region‐based convolutional neural network; LN, lymph node; MRI, magnetic resonance imaging; SD, standard deviation.
a
Statistics for Student's t test.
b
Statistics for Pearson's Chi‐squared test.
c
Statistics for Mann‐Whitney U test.