Relationship between the probability of an empty packet dissection and the number of procedures performed: logistic regression results
| Adjustments to the logistic regression model | OR of an empty packet for an additional procedure (95% CI*) |
| Unadjusted | 0.964 (0.933 to 0.997) |
| Adjusted for surgeon | 0.951 (0.916 to 0.987) |
| Adjusted for surgeon, body mass index, and age | 0.952 (0.917 to 0.988) |
*Wald 95% CIs.