Efficacy-cost analysis of endoscopic mucosal resection and cold snare polypectomy: A propensity score matching analysis

Table 1 Baseline data of patients in the two groups before propensity score matching, n (%)

Items	EMR group (n = 46)	CSP group (n = 54)	χ2/t	P value
Age			1.771	0.183
≥ 60 years	22 (47.83)	33 (61.11)
< 60 years	24 (52.17)	21 (38.89)
Sex			0.100	0.752
Male	27 (58.70)	30 (55.56)
Female	19 (41.30)	24 (44.44)
BMI (kg/m2)	22.48 ± 1.43	22.19 ± 2.68	0.678	0.499
Smoking			3.904	0.048
Yes	27 (58.70)	21 (38.89)
No	19 (41.30)	33 (61.11)
Diabetes mellitus			0.549	0.459
Yes	23 (50.00)	23 (42.59)
No	23 (50.00)	31 (57.41)
Combined hypertension			0.343	0.558
Yes	24 (52.17)	25 (46.30)
No	22 (47.83)	29 (53.70)
Polyp diameter			0.244	0.621
≥ 10 mm	21 (45.65)	22 (40.74)
< 10 mm	25 (54.35)	32 (59.26)
Number of polyps			3.904	0.048
≥ 3	27 (58.70)	21 (38.89)
< 3	19 (41.30)	33 (61.11)
Polyp location			0.362	0.547
Colon	28 (60.87)	36 (66.67)
Rectum	18 (39.13)	18 (33.33)
Pathological type			2.347	0.126
Inflammatory hyperplasia	30 (65.22)	27 (50.00)
Adenomatous	16 (34.78)	27 (50.00)

EMR: Endoscopic mucosal resection; CSP: Cold snare polypectomy; BMI: Body mass index.