Table 2 Univariate analysis and multivariate analysis for laparoscopic surgery converted to open surgery

0.161

0.406

2.600

0.766–8.821

0.125

1.691

0.421–6.799

0.459

4.160

0.818–21.153

0.086

3.864

0.531–28.100

0.182

1.018

0.342–3.032

0.975

0.791

0.226–2.770

0.714

1.027

1.001–1.054

0.039

1.014

0.987–1.042

0.316

0.111

0.014–0.904

0.040

0.168

0.017–1.630

0.124

2.679

0.709–10.125

0.146

2.033

0.440–9.391

0.364

1.400

0.461–4.247

0.552

1.228

0.329–4.579

0.760