A new scoring system to evaluate adjuvant chemotherapy for patients with T2N0M0 gastric cancer after D2 gastrectomy

Table 3 Multivariable Cox Proportional Hazards Modeling for overall survival

Clinicopathological features	HR (95%CI)	P value
Sex
Male	Reference
Female	0.390 (0.076-1.988)	P = 0.257
Smoking history
Yes	Reference
No	0.725 (0.308-1.710)	P = 0.463
Family history of gastric cancer
Yes	Reference
No	0.495 (0.058-4.224)	P = 0.521
BMI
18.5-23.9	Reference
> 23.9 or < 18.5	1.848 (0.760-4.490)	P = 0.175
Postoperative hospital stay
≤ 14 d	Reference
> 14 d	1.198 (0.350-4.100)	P = 0.960
Tumor site
Cardia cancer	Reference
Non-cardia gastric cancer	0.620 (0.277-1.390)	P = 0.246
The degree of differentiation
Poorly differentiated	Reference
Moderately differentiated	0.517 (0.206-1.300)	P = 0.161
Highly differentiated	0.390 (0.077-1.960)	P = 0.305
Vascular invasion
Yes	Reference
No	0.106 (0.045-0.246)	P < 0.001

HR: Hazard ratio; 95%CI: 95% confidence interval.