Table 4.
The estimated number of complications in each study group used to calculate the provisional sample size
| EBD | PTBD | |
|---|---|---|
| 0 complications | 50% | 75% |
| 1 complication | 25% | 17% |
| ≥2 complications | 25% | 8% |
| Total proportion | 100% | 100% |
The estimated proportion of patients is presented for each categorical number of complications.