Table 3. Univariate and multivariate logistic regression models for predictive factors of one-session success following shock wave lithotripsy for ureteral stones.

Parameter	Odds ratio	95% CI	p-value
Univariate
Age	1.006	0.995–1.018	0.275
Male sex	0.793	0.557–1.122	0.195
MSL	0.832	0.792–0.872	<0.001
MSD	0.997	0.996–0.998	<0.001
SSD	1.001	0.992–1.010	0.799
SHI	1.003	1.001–1.005	<0.001
Recurrent stone formers	1.152	0.802–1.670	0.452
Stone location (%)
Upper	Reference
Middle	0.683	0.373–1.281	0.222
Lower	0.868	0.527–1.466	0.588
Laterality, right	1.204	0.866–1.674	0.269
Stenting	0.377	0.217–0.653	<0.001
Multivariate
MSL	0.901	0.854–0.948	<0.001
MSD	0.996	0.994–0.997	<0.001
SHI	1.010	1.007–1.012	<0.001
Stenting	0.432	0.217–0.863	0.017

CI, confidence interval; MSL, maximal stone length; MSD, mean stone density; SSD, skin-to-stone distance; SHI, stone heterogeneity index.