Table 4.

Multivariable analysis assessing odds of ED visit and hospitalization following ureteroscopy associated with ureteral stent placement adjusting for provider and practice variation.

	ED Visit				Hospitalization
	Adjusted Odds Ratio	95% Confidence Interval	P-Value		Adjusted Odds Ratio	95% Confidence Interval	P-Value
Stent placement (vs. no)	1.25	1.01 – 1.54	0.0428		1.28	0.94 – 1.76	0.12
Age (unit change from mean)	0.99	0.98 – 0.99	<0.001		0.99	0.98 – 1.00	0.012
Gender			0.011				0.6
Male (vs. female)	0.87	0.74 – 1.03			1.06	0.83 – 1.35
BMI			0.7				0.9
≤25 (vs. >35)	0.89	0.70 – 1.14			1.10	0.78 – 1.56
>25 - ≤30 (vs. >35)	0.95	0.76 – 1.18			1.04	0.75 – 1.44
>30 - ≤35 (vs. >35)	1.02	0.81 – 1.28			0.96	0.67 – 1.37
Insurance			0.3				0.03
Private (vs. public)	0.87	0.73 – 1.04			0.73	0.56 – 0.94
None (vs. public)	0.84	0.46 – 1.53			0.43	0.13 – 1.38
Charlson Comorbidity Index			<0.001				<0.001
1 (vs. 0)	1.26	1.00 – 1.58			1.57	1.14 – 2.17
≥2 (vs. 0)	1.59	1.26 – 2.02			2.19	1.59 – 3.02
Urine culture			0.007				0.005
Positive (vs. negative)	1.27	1.00 – 1.61			1.54	1.12 – 2.13
Not performed (vs. negative)	0.77	0.60 – 0.98			0.79	0.55 – 1.13
Pre-stented (vs. no)	0.73	0.60 – 0.88	0.001		1.02	0.78 – 1.33	0.9
Stone size, diameter			<0.001				<0.001
>5mm - ≤10mm (vs. ≤5mm)	0.69	0.57 – 0.83			0.56	0.42 – 0.74
>10mm (vs. ≤5mm)	0.81	0.63 – 1.05			0.9	0.63 – 1.28
Stone location			<0.001				0.029
Kidney (vs. ureter)	1.39	1.13 – 1.70			1.42	1.06 – 1.91
Both (vs. ureter)	1.47	1.18 – 1.83			1.41	1.02 – 1.95
Ureteral access sheath (vs. no)	1.22	1.01 – 1.48	0.043		1.25	0.95 – 1.64	0.12
Intraoperative complication (vs. no)	2.40	1.27 – 4.55	0.007		1.5	0.53 – 4.25	0.4