Table 2.
Univariate analysis of variables for patients with curative distal gastrectomy.
| Characteristics | N | 5-year survival (%) | χ2 | P |
|---|---|---|---|---|
| Gender | <0.001 | 0.991 | ||
| Male | 467 | 58.1 | ||
| Female | 167 | 56.3 | ||
| Age (years) | 0.641 | 0.423 | ||
| <60 | 370 | 58.9 | ||
| ≥60 | 264 | 56.0 | ||
| Tumor diameter (cm) | 4.409 | 0.036 | ||
| ≤4 | 343 | 61.0 | ||
| >4 | 291 | 53.6 | ||
| Tumor location | 5.693 | 0.058 | ||
| Lower | 521 | 57.7 | ||
| Middle | 71 | 63.7 | ||
| Lower and middle | 42 | 45.4 | ||
| Digestive tract construction | 5.508 | 0.064 | ||
| Billroth I | 469 | 60.7 | ||
| Billroth II | 148 | 48.5 | ||
| Roux-en-Y | 17 | 51.0 | ||
| Pathology | 9.135 | 0.003 | ||
| Differentiated | 140 | 68.1 | ||
| Undifferentiated | 494 | 54.6 | ||
| Depth of invasion | 65.354 | 0.000 | ||
| pT1 | 118 | 90.6 | ||
| pT2 | 106 | 67.2 | ||
| pT3 | 68 | 60.1 | ||
| pT4a | 342 | 42.9 | ||
| pN category | 116.863 | 0.000 | ||
| pN0 | 195 | 83.3 | ||
| pN1 | 115 | 63.6 | ||
| pN2 | 117 | 44.5 | ||
| pN3 | 207 | 31.2 | ||
| Number of resected LNs | 65.288 | 0.000 | ||
| 0~9 LNs | 32 | 30.9 | ||
| 10~14 LNs | 75 | 37.2 | ||
| 15~19 LNs | 111 | 51.6 | ||
| 20~24 LNs | 161 | 59.7 | ||
| 25~29 LNs | 118 | 62.0 | ||
| 30~34 LNs | 78 | 69.6 | ||
| ≥35 LNs | 59 | 77.7 | ||
| Adjuvant chemotherapy* | 1.829 | 0.117 | ||
| Yes | 382 | 51.0 | ||
| No | 134 | 47.8 |