Table 1 Univariate and multivariate logistic regression analysis for prediction of stone-free status after shockwave lithotripsy

Age

0.935

0.809–1.079

0.356

Height

1.236

0.912–1.676

0.172

Weight

0.822

0.608–1.111

0.202

Laterality

0.047

0.001–1.941

0.107

Max size

1.001

0.667–1.504

0.995

ESWL time

4.413

0.229–85.162

0.326

1.656

0.967–2.835

0.066

ESWL No

0.586

0.031–10.971

0.721

Total energy

1.019

0.973–1.068

0.428

Intensity (Hz)

890246.377

0.000-6.026E + 18

0.363

1509.061

1.508-1510472.035

0.038*

Respiration number

0.414

0.134–1.275

0.124

0.853

0.613–1.187

0.346

Respiration regularity (> 95%)

401.806

0.336-480114.589

0.097

6.101

1.035–35.966

0.046*

Respiration event number

1.122

0.553–2.275

0.751

Respiration duration

0.003

0.000-1.531

0.068

Kidney migration

3715.476

0.799-17283214.50

0.056

12.137

1.039-141.705

0.046*

Kidney size

0.840

0.191–3.688

0.818