Table 5.
Analysis of lymph node metastasis using the chi-square test and a logistic regression model.
| Characteristics | Univariate |
Multivariate |
||
|---|---|---|---|---|
| Number (%) | p value | Odds ratio (95% CI) |
p value | |
| Sex | <0.05 | |||
| Male (n = 1,369) | 606 | |||
| Female (n = 716) | 110 | 1.44 (1.07–1.94) | <0.05 | |
| Tumor size | <0.05 | |||
| ⩽3 cm (n = 1,039) | 111 | |||
| >3 cm (n = 779) | 145 | 1.71 (1.28–2.30) | <0.05 | |
| Lymphovascular invasion | <0.05 | |||
| No (n = 1,887) | 176 | |||
| Yes (n = 198) | 80 | 3.79 (2.29–5.42) | <0.05 | |
| Depth of invasion | <0.05 | |||
| Mucosa (n = 1,033) | 38 | |||
| Submucosa (n = 1,052) | 218 | 4.43 (3.04–6.47) | <0.05 | |
| Histology | <0.05 | |||
| WD-TUB (n = 480) | 25 | |||
| MD-TUB (n = 574) | 74 | 1.38 (0.83–2.29) | NS | |
| PD-TUB (n = 651) | 118 | 2.20 (1.37–3.54) | <0.05 | |
| SRC (n = 345) | 31 | 1.46 (0.85–2.06) | NS | |
CI, confidence interval; NS, nonspecific; MD-TUB, moderately differentiated tubular adenocarcinoma; PD-TUB, poorly differentiated tubular adenocarcinoma; SRC, signet ring cell carcinoma; WD-TUB, well-differentiated tubular adenocarcinoma.