The usefulness of flexible cystoscopy for preventing double-J stent malposition after laparoscopic ureterolithotomy

Table 3 Univariate logistic regression analysis of variables affecting upward malpositioning of ureteral stents (SPSS version 22)

Variable	Odds ratio	95% Confidence Interval	P-value
Age	0.979	0.945–1.015	0.246
Height (cm)	0.991	0.945–1.039	0.706
Weight (kg)	1.010	0.975–1.047	0.584
BMI	1.084	0.923–1.274	0.324
Stone level (groups divided via L2 level)	0.379	0.119–1.205	0.100
Stone size (cm)	1.433	0.533–3.849	0.475
Degree of hydronephrosis			0.044
Previous history of the ureteral procedure	0.567	0.187–1.719	0.316
SWL	0.467	0.124–1.755	0.259
URSL	1.241	0.304–5.064	0.764
Operation time (min.)	1.003	0.994–1.012	0.552
Transperitoneal VS retroperitoneal	2.656	0.766–9.207	0.123
Surgeon type			0.077
2	0.338	0.097–1.176	0.088
3	0.098	0.012–0.809	0.031
4	0.413	0.078–2.180	0.297
Flexible cystoscopy use	0	0	0.997

BMI Body Mass Index, SWL Shock Wave Lithotripsy, URSL Ureteroscopic Lithotripsy

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