Findings

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Evidence found and GRADE certainty

33 questions · 33 findings · 2 reviews · Pregnancy and Childbirth

No studies found 2 · 6.1%GRADE not reported 0 · 0%Very low 2 · 6.1%Low 18 · 54.5%Moderate 8 · 24.2%High 3 · 9.1%

Intervention not reported

Preterm birth < 37 weeks · pregnant women and their babies

The intervention leads to lower preterm birth < 37 weeks (high certainty).

1 finding from 1 review

Intervention not reported

Pre‐eclampsia · pregnant women

The intervention showed no clear difference in pre‐eclampsia (low certainty).

1 finding from 1 review

Intervention not reported

Gestational length · pregnant women

The intervention probably leads to higher gestational length (moderate certainty).

1 finding from 1 review

Intervention not reported

Maternal serious adverse events · pregnant women

The intervention showed no clear difference in maternal serious adverse events (low certainty).

1 finding from 1 review

Intervention not reported

Maternal admission to intensive care · pregnant women

The intervention showed no clear difference in maternal admission to intensive care (low certainty).

1 finding from 1 review

Intervention not reported

Postnatal depression · pregnant women

The intervention showed no clear difference in postnatal depression (low certainty).

1 finding from 1 review

Intervention not reported

Cognition: BSID II score at < 24 months · children of women randomised to omega‐3 or no omega‐3 during pregnancy

The intervention showed no clear difference in cognition: BSID II score at < 24 months (low certainty).

1 finding from 1 review

Intervention not reported

Cognition: BSID III score at < 24 months · children of women randomised to omega‐3 or no omega‐3 during pregnancy

The intervention showed no clear difference in cognition: BSID III score at < 24 months (low certainty).

1 finding from 1 review

Intervention not reported

IQ: WASI at 7 years · children of women randomised to omega‐3 or no omega‐3 during pregnancy

The intervention showed no clear difference in IQ: WASI at 7 years (low certainty).

1 finding from 1 review

Intervention not reported

IQ: WISC‐IV at 12 years · children of women randomised to omega‐3 or no omega‐3 during pregnancy

It is very uncertain whether the intervention changes IQ: WISC‐IV at 12 years (very low certainty).

1 finding from 1 review

Intervention not reported

Behaviour: BSID III adaptive behaviour score at 12‐18 months · children of women randomised to omega‐3 or no omega‐3 during pregnancy

The intervention showed no clear difference in behaviour: BSID III adaptive behaviour score at 12‐18 months (low certainty).

1 finding from 1 review

Intervention not reported

Early preterm birth < 34 weeks · pregnant women and their babies

The intervention leads to lower early preterm birth < 34 weeks (high certainty).

1 finding from 1 review

Intervention not reported

Behaviour: SDQ Total Difficulties at 7 years · children of women randomised to omega‐3 or no omega‐3 during pregnancy

The intervention may leads to higher behaviour: SDQ Total Difficulties at 7 years (low certainty).

1 finding from 1 review

Intervention not reported

BMI at 19 years · children of women randomised to omega‐3 or no omega‐3 during pregnancy

It is very uncertain whether the intervention changes BMI at 19 years (very low certainty).

1 finding from 1 review