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 2 Comparison of esophageal stricture features in polyglycolic acid + stent and stent groups

Parameter	PGA + stent group (n = 7)	Stent group (n = 15)	P value
Length (cm)	0.97 + 0.59	1.47 + 0.59	0.080
Diameter (cm)	0.37 + 0.17	0.51 + 0.14	0.061
Location (distance from the incisors, cm)	31.71 + 3.20	29.07 + 5.20	0.232
Balloon dilatation times	4 (2-5)	6 (1-14)	0.007

Data are presented as mean ± SD or median (range). Comparison was performed by t-test or Wilcoxon rank sum test. P < 0.05 was considered significant. PGA: Polyglycolic acid.