Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

749 questions · 769 findings · 63 reviews · Headline outcomes only

No studies found 202 · 26.3%GRADE not reported 31 · 4%Very low 172 · 22.4%Low 211 · 27.4%Moderate 106 · 13.8%High 47 · 6.1%

Drain use vs No drain

Intra‐abdominal infection · people undergoing elective pancreatic resections

It is very uncertain whether drain use changes intra‐abdominal infection compared with no drain use following pancreatic surgery (very low certainty).

1 finding from 1 review

Drain use vs No drain

Wound infection · people undergoing elective pancreatic resections

Drain use showed no clear difference in wound infection compared with no drain use following pancreatic surgery (low certainty).

1 finding from 1 review

Drain use vs No drain

Morbidity · people undergoing elective pancreatic resections

Drain use showed no clear difference in morbidity compared with no drain use following pancreatic surgery (moderate certainty).

1 finding from 1 review

Drain use vs No drain

Length of hospital stay · people undergoing elective pancreatic resections

Drain use showed no clear difference in length of hospital stay compared with no drain use following pancreatic surgery (low certainty).

1 finding from 1 review

Active drain vs passive drain

All‐cause mortality · people undergoing elective pancreatic resections

It is very uncertain whether active drain changes mortality compared with passive drain following pancreatic surgery (very low certainty).

2 findings from 1 review