Survival prognostic analysis of laparoscopic D2 radical resection for locally advanced gastric cancer: A multicenter cohort study

Table 3 Multivariate analysis of overall survival rate of locally advanced gastric cancer patients undergoing laparoscopic D2 radical distal gastrectomy

Clinical pathological factors	β value	SE	Wald value	Hazard ratio	95%CI	P value
Ages of > 65 years to ≤ 65 years	0.24	0.12	3.73	1.27	0.99-1.61	0.053
Maximum diameter of the tumor of > 4 cm to ≤ 4 cm	0.39	0.11	12.19	1.48	1.19-1.84	< 0.001
Degree of tumor differentiation			10.08			0.006
Low undifferentiated to high medium differentiated	0.37	0.14	7.36	1.44	1.11-1.88	0.007
Unknown high to medium differentiation	-0.07	0.23	0.10	0.93	0.60-1.46	0.753
Pathological TNM staging of stage III compared to stage II	0.59	0.12	23.41	1.81	1.42-2.30	< 0.001
Postoperative chemotherapy	-0.56	0.12	20.81	0.57	0.45-0.73	< 0.001