Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

4,072 questions · 4,237 findings · 447 reviews · Headline outcomes only

No studies found 946 · 22.3%GRADE not reported 257 · 6.1%Very low 1,121 · 26.5%Low 1,207 · 28.5%Moderate 568 · 13.4%High 138 · 3.3%

Immune‐enhancing supplements (oral or enteral) vs usual care or control

Infectious complications · people undergoing gastrointestinal surgery

Immune‐enhancing supplements (oral or enteral) showed no clear difference in infectious complications recorded up to 30 days postdischarge compared with usual care or control (low certainty).

1 finding from 1 review

Oral nutritional supplements vs usual care or control

Infectious complications · people undergoing gastrointestinal surgery

It is very uncertain whether oral nutritional supplements changes infectious complications recorded up to 30 days postdischarge compared with usual care or control (very low certainty).

1 finding from 1 review

Preoperative enteral nutrition (standard formula) vs usual care or control

Infectious complications · people undergoing gastrointestinal surgery

It is very uncertain whether preoperative enteral nutrition (standard formula) changes infectious complications compared with usual care or control (very low certainty).

1 finding from 1 review

Immune‐enhancing supplements (oral or enteral) vs usual care or control

Non‐infectious complications · people undergoing gastrointestinal surgery

Immune‐enhancing supplements (oral or enteral) showed no clear difference in non‐ infectious complications recorded up to 30 days postdischarge compared with usual care or control (low certainty).

1 finding from 1 review

Probiotics vs placebo

Proven sepsis (positive bacterial culture, local or systemic) · neonates born from 35 weeks of gestation who have underdone gastrointestinal surgery

Summary of findings table ‐ Probiotics showed no clear difference in proven sepsis (positive bacterial culture, local or systemic) compared with placebo (low certainty).

1 finding from 1 review