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. Author manuscript; available in PMC: 2021 Oct 11.
Published in final edited form as: J Urol. 2021 Feb 3;205(6):1710–1717. doi: 10.1097/JU.0000000000001653

Table 2.

Multivariable model assessing risk factors for stent placement at the time of ureteroscopy adjusting for provider and practice variation.

Adjusted Odds Ratio 95% Confidence Interval P- Value
Age (unit change from mean) 1.01 1.00 – 1.01 <0.001
Gender 0.079
Male (vs. female) 1.12 0.99 – 1.27
BMI 0.6
≤25 (vs. >35) 1.01 0.84 – 1.22
>25 - ≤30 (vs. >35) 0.91 0.77 – 1.07
>30 - ≤35 (vs. >35) 0.97 0.81 – 1.17
Insurance 0.4
Private (vs. public) 0.97 0.85 – 1.12
None (vs. public) 0.76 0.49 – 1.17
Charlson Comorbidity Index 0.4
1 (vs. 0) 1.13 0.94 – 1.35
≥2 (vs. 0) 1.00 0.83 – 1.21
Urine culture 0.5
Positive (vs. negative) 1.11 0.91 – 1.35
Not performed (vs. negative) 0.97 0.81 – 1.16
Pre-stented (vs. no) 0.25 0.22 – 0.29 <0.001
Stone size, diameter <0.001
>5mm - ≤10mm (vs. ≤5mm) 1.89 1.65 – 2.15
>10mm (vs. ≤5mm) 4.68 3.70 – 5.92
Stone location <0.001
Kidney (vs. ureter) 0.69 0.59 – 0.82
Both (vs. ureter) 0.99 0.83 – 1.19
Ureteral access sheath (vs. no) 5.43 4.57 – 6.46 <0.001
Intraoperative complication (vs. no) 2.18 0.92 – 5.20 0.078