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What do systematic reviews say?

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Evidence found and GRADE certainty

4,811 questions · 70,850 findings · 5,139 reviews

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No studies found 15,174 · 21.4%GRADE not reported 6,479 · 9.1%Very low 17,330 · 24.5%Low 17,814 · 25.1%Moderate 11,056 · 15.6%High 2,997 · 4.2%

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Summary of findings table ‐ Early amino acids vs Late amino acids

Growth during the first month of life · preterm born neonates
3 findings from 1 review

Summary of findings table ‐ Early amino acids vs Late amino acids

Neurodevelopmental outcomes · preterm born neonates

Summary of findings table ‐ Early amino acids showed no clear difference in neurodevelopmental outcome assessed by any standard tool compared with late amino acids (low certainty).

1 finding from 1 review

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