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What do systematic reviews say?

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Evidence found and GRADE certainty

13 questions · 13 findings · 2 reviews · Cystic Fibrosis and Genetic Disorders

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No studies found 5 · 38.5%GRADE not reported 0 · 0%Very low 8 · 61.5%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Omega‐3 vs placebo

Adverse effects (any adverse effect) · sickle cell disease

It is very uncertain whether omega‐3 changes adverse effects (any adverse effect) compared with placebo (very low certainty).

1 finding from 1 review

Omega‐3 vs placebo

Diarrhoea · adults and children with cystic fibrosis

It is very uncertain whether summary of findings: omega‐3 fatty acid supplementation changes adverse events: diarrhoea compared with placebo (very low certainty).

1 finding from 1 review

Omega‐3 vs placebo

FEV1 % predicted · adults and children with cystic fibrosis

It is very uncertain whether summary of findings: omega‐3 fatty acid supplementation changes FEV1 % predicted compared with placebo (very low certainty).

1 finding from 1 review

Omega‐3 vs placebo

FVC · adults and children with cystic fibrosis

It is very uncertain whether summary of findings: omega‐3 fatty acid supplementation changes FVC % predicted compared with placebo (very low certainty).

1 finding from 1 review

Omega‐3 vs placebo

Z score BMI · adults and children with cystic fibrosis

It is very uncertain whether summary of findings: omega‐3 fatty acid supplementation changes growth and nutrition: BMI SD score compared with placebo (very low certainty).

1 finding from 1 review