Table 3 Logistic regression analysis of risk factors for a stone-free outcome (success)
From: Rigid ureteroscopic lithotripsy in the lateral decubitus position for upper urinary tract stones
Variables | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
OR | 95% CI | P | OR | 95% CI | P | |
Gender (male as ref) | 2.008 | 1.266–3.185 | 0.003 | 2.135 | 1.332–3.422 | 0.002 |
Side (left as ref) | 1.052 | 0.702–1.578 | 0.805 | 1.006 | 0.662–1.527 | 0.979 |
Thin scope standby (no as ref) | 2.029 | 1.374–3.114 | 0.000 | 1.643 | 1.074–2.514 | 0.022 |
Laser lithotripsy (ballistic as ref) | 5.528 | 2.656–11.509 | 0.000 | 5.087 | 2.400–10.785 | 0.000 |
Stone location (renal pelvis as ref) | 0.947 | 0.534–1.679 | 0.851 | 0.859 | 0.472–1.565 | 0.620 |
Stone size (mm) | 0.958 | 0.925–0.993 | 0.018 | 0.946 | 0.912–0.981 | 0.003 |
Number of stones | 1.054 | 0.802–1.386 | 0.706 | 1.035 | 0.788–1.359 | 0.806 |