Table 2.
Risk factors for lymph node metastasis in early gastric cancer
| Variables | Multivariate | ||
|---|---|---|---|
| OR | 95% CI | P value | |
| Age | 0.987 | 0.974–1.001 | 0.060 |
| Female sex | 1.547 | 1.131–2.116 | 0.006 |
| Size ≤ 10 mm | Reference | ||
| (10, 20] | 1.857 | 1.161–2.970 | 0.010 |
| (20, 30] | 2.233 | 1.359–3.668 | 0.002 |
| (30,) | 3.021 | 1.730–5.277 | 0.000 |
| Location at upper third | Reference | ||
| Middle third | 0.893 | 0.515–1.551 | 0.689 |
| Lower third | 1.023 | 0.622–1.682 | 0.930 |
| Residual stomach | 0.414 | 0.049–3.484 | 0.417 |
| Morphology of elevated type | Reference | ||
| Flat | 0.878 | 0.442–1.745 | 0.710 |
| Depressed | 0.978 | 0.551–1.737 | 0.940 |
| Ulcer (+) | 1.014 | 0.634–1.622 | 0.954 |
| Submucosal invasion | 3.836 | 2.682–5.486 | 0.000 |
| PD | Reference | ||
| Poorly D | 2.790 | 1.743–4.465 | 0.000 |
| SRC | 2.015 | 1.164–3.488 | 0.012 |
| Mixed | 2.945 | 2.039–4.253 | 0.000 |
PD pure differentiated cancer, Poorly D poorly differentiated cancer, SRC signet ring cell cancer, Mixed mixed gastric cancer