Endoscopic submucosal dissection for early gastric cancer and precancerous lesions enhances postoperative recovery and mitigates complication risks

Table 1 Baseline characteristics of research and control groups

Data	Research group (n = 65)	Control group (n = 55)	χ2/t value	P value
Gender (male/female)	42/23	40/15	0.906	0.341
Age (years)	59.72 ± 7.57	61.15 ± 9.22	0.933	0.353
Body mass index (kg/m2)	23.03 ± 2.42	23.25 ± 2.85	0.457	0.648
Tumor diameter (mm)	19.88 ± 1.61	20.18 ± 1.76	0.974	0.332
Single lesion presence (yes/no)	32/33	29/26	0.146	0.703
Ulceration (yes/no)	22/43	25/30	1.685	0.194
Tumor location (antrum/body/cardia and body)	36/16/13	32/15/8	0.629	0.730

Table 2 Comparison of treatment efficacy between research and control groups, n (%)

Treatment outcome	Research group (n = 65)	Control group (n = 55)	χ2	P value
En bloc resection rate	59 (90.77)	39 (70.91)	7.848	0.005
Curative resection rate	6 (9.23)	16 (29.09)

Table 3 Complication rates between research and control groups, n (%)

Complications	Research group (n = 65)	Control group (n = 55)	χ2	P value
Infection	0 (0.00)	3 (5.45)
Outflow obstruction	0 (0.00)	2 (3.64)
Hemorrhage	2 (3.08)	6 (10.91)
Perforation	7 (10.77)	8 (14.55)
Total	9 (13.85)	19 (34.55)	7.135	0.008