3D laparoscopic-assisted vs open gastrectomy for carcinoma in the remnant stomach: A retrospective cohort study

Table 3 Postoperative pathological results for patients in two cohorts

	OGC (n = 48)	3DLAGC (n = 36)	P value
Pathological type, n (%)			0.521
Well differentiated	24 (50.0)	21 (58.3)
Moderately differentiated	19 (39.6)	10 (27.8)
Poorly differentiated (including signet-ring cell carcinoma)	5 (10.4)	5 (13.9)
Tumor size (mm)	38.67 (30.51)	35.22 (30.93)	0.612
TNM, n (%)			0.084
Ⅰ	18 (37.5)	15 (41.7)
Ⅱa	11 (22.9)	8 (22.2)
Ⅱb	9 (18.8)	1 (2.8)
Ⅲa	4 (8.3)	9 (25.0)
Ⅲb	4 (8.3)	3 (8.3)
Ⅲc	2 (4.2)	0 (0.0)
Depth of tumor invasion, n (%)			0.826
T1	10 (20.8)	9 (25.0)
T2	9 (18.8)	7 (19.4)
T3	17 (35.4)	13 (36.1)
T4	10 (25.0)	5 (19.5)
Lymph nodes metastases, n (%)			0.205
N0	34 (70.8)	20 (55.6)
N1	6 (12.5)	8 (22.2)
N2	2 (4.2)	5 (13.9)
N3	6 (12.5)	3 (8.3)
Number of positive lymph nodes (n)	2.35 (5.28)	1.56 (2.84)	0.413
Total number of lymph nodes retrieved (n)	10.73 (6.82)	14.00 (7.17)	0.036

All continuous variables were described by mean ± SD; Enumeration data were presented by percentage (%). OGC: Open gastrectomy for carcinoma in the remnant stomach; 3DLAGC: 3D laparoscopic assisted gastrectomy for carcinoma in the remnant stomach; TNM: Pathological staging (pTNM) according to American Joint Committee on Cancer (AJCC) TNM Staging Classification for Carcinoma of the Stomach (8^th ed).