Table 1.
Univariate analysis of variables in patients with node-negative gastric cancer
| Characteristics | n | 5-year survival rate (%) | χ2 | P value |
| Gender | 1.887 | 0.170 | ||
| Male | 164 | 81.7 | ||
| Female | 47 | 84.0 | ||
| Age (yr) | 0.619 | 0.431 | ||
| < 60 | 109 | 84.2 | ||
| ≥ 60 | 102 | 79.9 | ||
| Tumor size (cm) | 4.538 | 0.033 | ||
| ≤ 4 | 94 | 88.9 | ||
| > 4 | 117 | 76.8 | ||
| Tumor location | 1.681 | 0.432 | ||
| Upper | 75 | 80.1 | ||
| Middle | 40 | 81.7 | ||
| Lower | 96 | 84.0 | ||
| Depth of invasion | 27.698 | 0.000 | ||
| T1 | 69 | 92.4 | ||
| T2 | 58 | 83.9 | ||
| T3 | 62 | 76.4 | ||
| T4 | 22 | 57.8 | ||
| Pathology | 0.212 | 0.645 | ||
| Differentiated | 55 | 88.6 | ||
| Undifferentiated | 156 | 80.0 | ||
| Surgical type | 0.219 | 0.640 | ||
| Total gastrectomy | 99 | 80.5 | ||
| Subtotal gastrectomy | 112 | 83.6 | ||
| Number of resected LNs | 45.219 | 0.000 | ||
| 0-14 | 18 | 43.2 | ||
| 15-19 | 49 | 76.8 | ||
| 20-24 | 63 | 84.5 | ||
| 25-29 | 44 | 90.6 | ||
| ≥ 30 | 37 | 94.5 |