Table 2 Univariate and multivariate logistic regression modelsa on one-session success and stone-free status in total patients with a ureteral stone.

From: Stone heterogeneity index as the standard deviation of Hounsfield units: A novel predictor for shock-wave lithotripsy outcomes in ureter calculi

 

Univariate

Multivariate

OR

95% CI

P-value

OR

95% CI

P-value

One-session success

 Age (year)

0.995

0.983–1.007

0.394

   

 Sex (Male)

0.831

0.574–1.195

0.323

   

 Stone size (mm)

0.832

0.789–0.874

<0.001

0.889

0.841–0.937

<0.001

 SSD (mm)

0.999

0.990–1.008

0.769

   

 MSD (HU)

0.997

0.996–0.998

<0.001

0.995

0.994–0.996

<0.001

 SHI (HU)

1.004

1.002–1.005

<0.001

1.011

1.008–1.014

<0.001

One–session stone-free

 Age (year)

0.991

0.979–1.003

0.128

   

 Sex (Male)

0.822

0.573–1.174

0.285

   

 Stone size (mm)

0.832

0.790–0.875

<0.001

0.886

0.839–0.933

<0.001

 SSD (mm)

1.000

0.991–1.008

0.992

   

 MSD (HU)

0.997

0.996–0.998

<0.001

0.996

0.995–0.997

<0.001

 SHI (HU)

1.002

1.000–1.004

0.017

1.008

1.005–1.010

<0.001

  1. SSD: skin-to-stone distance, MSD: mean stone density, SHI: stone heterogeneity index.
  2. aA multivariate logistic regression model with forward stepwise selection was performed.
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