Table 4.

Logistic analysis of factors affecting esophageal stricture occurrence

Parameter	Univariate logistic regression				Multivariate logistic regression
	P value	OR	95%CI		P value	OR	95%CI
			Lower	Higher			Lower	Higher
PGA + stent (vs stent alone)	0.027	0.294	0.099	0.868	0.026	0.197	0.047	0.820
Age ≥ 62 yr	0.298	1.733	0.615	4.887	-	-	-	-
Location - middle third (vs lower third)	0.083	2.528	0.886	7.214	0.034	5.148	1.135	23.344
Longitudinal length ≥ 6 cm	0.059	2.779	0.963	8.019	0.092	3.826	0.801	18.270
Circumferential range = 1/1 (vs others)	0.008	4.333	1.457	12.888	0.028	5.113	1.194	21.892
Tissue depth M2 (vs M1)	0.017	3.750	1.264	11.123	0.069	3.284	0.912	11.822

Data are presented as P-value, OR (odds ratio), and 95%CI. Factors affecting esophageal stricture occurrence were determined by univariate logistic regression analysis, while all factors with a P-value less than 0.1 were further detected by multivariate logistic regression analysis. P-value < 0.05 was considered significant. PGA: Polyglycolic acid.