Table 1 Comparison of clinicopathological characteristics between adjuvant chemotherapy group and surgery-only group
From: Is adjuvant chemotherapy necessary in pT1N1 gastric cancer?
Adjuvant chemotherapy (N = 150) | Surgery-only (N = 360) | P-value | |||
|---|---|---|---|---|---|
N | % | N | % | ||
Age (years) | |||||
≤ 65 | 108 | 72.0 | 246 | 69.3 | 0.461 |
> 65 | 42 | 28.0 | 114 | 31.7 | |
Gender | 0.920 | ||||
Male | 95 | 63.3 | 225 | 62.5 | |
Female | 55 | 36.7 | 135 | 37.5 | |
BMI (kg/m2) | 0.990 | ||||
< 25 | 102 | 68.0 | 245 | 68.1 | |
≥ 25 | 48 | 32.0 | 115 | 31.9 | |
Type of resection | 0.060 | ||||
STG | 140 | 93.3 | 315 | 87.5 | |
TG | 10 | 6.7 | 45 | 12.5 | |
Reconstruction | 0.168 | ||||
BI | 70 | 46.7 | 174 | 48.3 | |
BII | 68 | 45.3 | 139 | 38.6 | |
Roux-en-Y | 12 | 8.0 | 47 | 13.1 | |
Tumor location | 0.416 | ||||
Upper | 9 | 6.0 | 20 | 5.6 | |
Middle | 44 | 29.3 | 128 | 35.6 | |
Lower | 97 | 64.7 | 212 | 58.9 | |
Gross type | 0.812 | ||||
Elevated | 30 | 20.0 | 77 | 21.4 | |
Non-elevated | 120 | 80.0 | 283 | 78.6 | |
Depth of invasion | 0.420 | ||||
Mucosa | 26 | 17.3 | 52 | 14.4 | |
Submucosa | 124 | 82.7 | 308 | 85.6 | |
No. of metastatic LN | 0.015 | ||||
One | 85 | 56.7 | 245 | 68.1 | |
Two | 65 | 43.3 | 115 | 31.9 | |
Lymphovascular invasion | <0.001 | ||||
Positive | 91 | 60.7 | 150 | 41.7 | |
Negative | 59 | 39.3 | 210 | 58.3 | |
Histologic type | 0.656 | ||||
Differentiated | 23 | 12.5 | 161 | 87.5 | |
Undifferentiated | 28 | 14.1 | 171 | 85.9 | |