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

Table 1 Comparison between 298 locally advanced gastric cancer patients with the time to postoperative recurrence and metastasis ≤ 5 years and > 5 years after laparoscopic assisted D2 radical distal gastrectomy

Clinical pathological factors	Recurrence and metastasis within ≤ 5 years after surgery, n = 255	Recurrence and metastasis after surgery > 5 years, n = 43	Statistical value	P value
Types of recurrence and metastasis	-	-	χ2 = 5.52	0.238
Distant metastasis	21	5	χ2 = 0.53	0.466
Peritoneal metastasis	69	9	χ2 = 0.72	0.398
Local recurrence	37	10	χ2 = 2.12	0.146
Multiple relapses and metastases	52	4	χ2 = 2.9	0.085
Recurrence and metastasis in other parts	76	15	χ2 = 0.45	0.503
Pathological TNM staging	-	-	-	-
Stage II	62	23	χ2 = 15.36	< 0.001
Stage III	193	20
Pathological T-staging	-	-	Z = -1.80	0.07
T2	42	9	χ2 = 0.52	47
T3	95	21	χ2 = 2.08	0.150
T4a	118	13	χ2 = 3.84	0.049
Pathological N-staging	-	-	Z = -3.34	0.001
NO	19	12	χ2 = 16.52	< 0.001
N1	44	5	χ2 = 0.85	0.357
N2	85	18	χ2 = 1.18	0.277
N3	107	8	χ2 = 8.47	0.004