Table 6.
Univariate and multivariate analyses of the risk factors for lymph node metastasis in early undifferentiated gastric cancer.
| Risk factor | Univariate analysis (n = 270) | Multivariate analysis (n = 270) | ||||
|---|---|---|---|---|---|---|
| n | LNM (+) | P | P | OR | 95%CI | |
| Sex | ||||||
| Male | 139 | 25 (18.0%) | ||||
| Female | 131 | 30 (22.9%) | 0.316 | |||
| Age (years) | ||||||
| <65 | 207 | 44 (21.3%) | ||||
| ≥65 | 63 | 11 (17.5%) | 0.512 | |||
| Tumor size (cm) | 0.005 | 2.519 | 1.313-4.829 | |||
| ≤2 | 194 | 28 (14.4%) | ||||
| >2 | 76 | 27 (35.5%) | <0.001 | |||
| Infiltration depth | <0.001 | 3.993 | 1.920-8.305 | |||
| Intramucosal | 135 | 12 (8.9%) | ||||
| Submucosal | 129 | 42 (32.6%) | <0.001 | |||
| Excluded | 6 | 1 (16.7%) | ||||
| Pathological type | 0.617 | 1.225 | 0.553-2.712 | |||
| SRCC | 60 | 6 (10.0%) | ||||
| PDC | 204 | 49 (24.0%) | ||||
| MGC | 6 | 0 (0%) | 0.027 | |||
| Pure/mixed | ||||||
| Pure | 124 | 24 (19.4%) | ||||
| Mixed | 146 | 31 (21.2%) | 0.703 | |||
| Total | 270 | 55 (20.4%) | ||||
MGC, mucinous carcinoma; PDC, poorly differentiated carcinoma; SRCC, signet ring cell carcinoma.