Laparoscopic versus open gastrectomy for locally advanced gastric cancer after neoadjuvant chemotherapy: a comprehensive contrastive analysis with propensity score matching

Table 5 Postoperative recurrence and survival in the LG and OG groups after PSM

Characteristics	LG group (n = 55)	OG group (n = 55)	Χ²	p-value
Overall recurrence^a, no. (%)	24 (43.6)	28 (50.9)	0.584	0.445
Local recurrence^a, no. (%)	6 (10.9)	7 (12.7)	0.087	0.768
Metastasis^a, no. (%)	18 (32.7)	21 (38.2)	0.358	0.550
Liver	8 (14.5)	8 (14.5)
Peritoneum	2 (3.6)	5 (9.1)
Liver and peritoneum	3 (5.5)	1 (1.8)
Lung	0 (0.0)	2 (3.6)
Pancreas	1 (1.8)	2 (3.6)
Ovary	2 (3.6)	1 (1.8)
Bone	1 (1.8)	2 (3.6)
Kidney	1 (1.8)	0 (0.0)
RFS (%)			0.580	0.446
1-year RFS	74.5	61.8
3-year RFS	56.0	49.0
5-year RFS	46.9	43.3
OS (%)			0.108	0.742
1-year OS	80.0	81.8
3-year OS	67.0	56.4
5-year OS	46.7	52.1

PSM propensity score matching, LG laparoscopic gastrectomy, OG open gastrectomy, RFS relapse-free survival, OS overall survival
^aRefer to recurrence within 3 years

ISSN: 1477-7819