Table 3. Associations between pre- and intra-operative characteristics of the patients and the complication by using multiple linear regression (backward).
| Characteristics | Complications | ||
|---|---|---|---|
| β& | P | VIF | |
| First step | |||
| Platelet count | 0.007 | 0.922 | 1.143 |
| Prothrombin time | 0.013 | 0.878 | 1.615 |
| BMI | 0.239 | 0.001 | 1.120 |
| Pre-existing respiratory disease | 0.194 | 0.004 | 1.062 |
| Activated partial thromboplastin time | 0.033 | 0.619 | 1.076 |
| International normalized ratio of prothrombin time | −0.141 | 0.072 | 1.451 |
| Alanine aminotransferase | −0.200 | 0.013 | 1.506 |
| Albumin level | −0.007 | 0.926 | 1.278 |
| Total bilirubin level | 0.143 | 0.107 | 1.849 |
| CA19-9 | 0.003 | 0.972 | 1.246 |
| Duration of surgery | 0.086 | 0.210 | 1.105 |
| Diameter of bile duct | 0.054 | 0.548 | 1.924 |
| Diameter of pancreatic duct | 0.201 | 0.005 | 1.200 |
| Texture of pancreas level | −0.097 | 0.148 | 1.062 |
| Tumor diameter | 0.173 | 0.017 | 1.237 |
| Last step | |||
| BMI | 0.253 | 0.000 | 1.059 |
| Pre-existing respiratory disease | 0.207 | 0.002 | 1.031 |
| International normalized ratio of prothrombin time | −0.114 | 0.083 | 1.029 |
| Alanine aminotransferase | −0.188 | 0.013 | 1.356 |
| Total bilirubin level | 0.174 | 0.019 | 1.321 |
| Diameter of pancreatic duct | 0.193 | 0.004 | 1.075 |
| Tumor diameter | 0.171 | 0.011 | 1.094 |
&, multiple linear regression analysis; β: Parameter estimate. BMI, body mass index.