Table 3.

Risk factors related to the prognosis of patients at 6 months after stent removal using multivariate analysis.

Variables	Regression coefficients	Standard error	Wald test	p-value	OR	95% CI
Length of US	−0.372	0.135	7.612	0.006	0.689	0.529–0.898
Time of USP	−0.162	0.072	5.036	0.025	0.851	0.739–0.980
Single stent			7.545	0.023
Double stents	0.112	0.373	0.091	0.763	1.119	0.539–2. 323
Triple stents	1.050	0.416	6.355	0.012	2.857	1.263–6.463
Constant	1.528	0.400	14.599	<0.001	4.610

US, ureteral stricture; USP, ureteral stent placement; OR, odds ratio; CI, confidence interval.