Effect of polyglycolic acid sheet plus esophageal stent placement in preventing esophageal stricture after endoscopic submucosal dissection in patients with early-stage esophageal cancer: A randomized, controlled trial

Table 1 Baseline characteristics n (%)

Parameter	PGA + stent group (n = 34)	Stent group (n = 32)	P value
Patients characteristic
Age (yr)	62.74 ± 8.38	59.91 ± 8.80	0.186
Gender (Male/Female)	22/12	18/14	0.482
Tumor lesion feature
Location			0.145
Upper third	0 (0)	0 (0)
Middle third	12 (35)	17 (53)
Lower third	22 (65)	15 (47)
Tissue depth			0.331
M1	20 (59)	15 (47)
M2	14 (41)	17 (53)
Longitudinal length (cm)	5.97 ± 2.68	6.06 ± 2.12	0.878
Circumferential range			0.684
3/4	12 (35)	14 (44)
4/5	8 (24)	8 (25)
1/1	14 (41)	10 (31)

Data are presented as mean ± SD or count (with or without percentage). Comparison was performed by t-test or Chi-square test. P < 0.05 was considered significant. PGA: Polyglycolic acid.