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Table 4 The estimated number of complications in each study group used to calculate the provisional sample size

From: Preoperative endoscopic versus percutaneous transhepatic biliary drainage in potentially resectable perihilar cholangiocarcinoma (DRAINAGE trial): design and rationale of a randomized controlled trial

 

EBD

PTBD

0 complications

50%

75%

1 complication

25%

17%

≥2 complications

25%

8%

Total proportion

100%

100%

  1. The estimated proportion of patients is presented for each categorical number of complications.
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BMC Gastroenterology

ISSN: 1471-230X

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