Table 1 Demographic and Clinicopathologic Variables of the Adjuvant Chemotherapy and Non- Adjuvant Chemotherapy Cohorts in SEER datebase
Variable | Group C(n = 287) | Group N(n = 1306) | |||
|---|---|---|---|---|---|
No. of Patients | % | No. of Patients | % | χ2test P | |
Sex | |||||
Female | 96 | 33.4 | 526 | 40.3 | .033 |
Male | 191 | 66.6 | 780 | 59.7 | |
Age y | |||||
≤65 | 152 | 53.0 | 309 | 23.7 | .000 |
>65 | 135 | 47.0 | 997 | 76.3 | |
AJCC | |||||
T1N2 | 35 | 12.2 | 123 | 9.4 | .157 |
T3N0 | 252 | 87.8 | 1183 | 90.6 | |
LNs dissection,No. | |||||
≤15 | 140 | 51.2 | 270 | 20.7 | .000 |
>15 | 147 | 48.8 | 1036 | 79.3 | |
Size,mm | |||||
<20 | 42 | 14.6 | 669 | 51.2 | .000 |
≥20 | 245 | 85.4 | 637 | 48.8 | |
Intestinal type | |||||
No | 247 | 86.1 | 1070 | 81.9 | .102 |
Yes | 40 | 13.9 | 236 | 18.1 | |
Primary Site | |||||
Upper third | 131 | 45.6 | 657 | 50.3 | .359 |
Middle | 47 | 16.4 | 194 | 13.9 | |
Lower third | 109 | 38.0 | 455 | 34.8 | |
Gastrectomy Type | |||||
Antrectomy | 22 | 7.7 | 62 | 4.7 | .118 |
Distal gastrectomy | 108 | 37.6 | 544 | 41.7 | |
Upper gastrectomy | 27 | 9.4 | 102 | 7.8 | |
Total gastrectomy | 130 | 45.3 | 598 | 45.8 | |
Grade | |||||
Well differentiated | 7 | 2.4 | 69 | 5.3 | .102 |
Moderately differentiated | 79 | 27.5 | 496 | 38 | |
Poorly differentiated | 192 | 66.9 | 717 | 54.9 | |
Undifferentiated | 9 | 3.1 | 24 | 1.8 | |
Histology | |||||
Adenocarcinoma | 222 | 77.4 | 1125 | 86.1 | .000 |
Non-Adenocarcinoma | 65 | 22.6 | 181 | 13.9 | |
Follow-up,month | |||||
Median | 27 | 34 | |||
Range | 0-297 | 0-308 | |||