Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

40 questions · 40 findings · 12 reviews · Pregnancy and Childbirth · Headline outcomes only

No studies found 8 · 20%GRADE not reported 4 · 10%Very low 2 · 5%Low 14 · 35%Moderate 8 · 20%High 4 · 10%

Magnesium sulphate vs placebo (outcomes

Bronchopulmonary dysplasia/chronic lung disease · women at risk of preterm birth (< 34 weeks' gestation)

Magnesium sulphate showed no clear difference in chronic lung disease/bronchopulmonary dysplasia (newborn/infant)** compared with placebo (outcomes (low certainty).

1 finding from 1 review

Strategies to increase use of antenatal corticosteroids vs usual care

Perinatal mortality · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids probably leads to higher perinatal death (at population level) compared with routine (usual) care (moderate certainty).

1 finding from 1 review

Strategies to increase use of antenatal corticosteroids vs usual care

Neonatal death (death within the first 28 days of life) · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids probably leads to higher neonatal death before 28 days (at population level) compared with routine (usual) care (moderate certainty).

1 finding from 1 review

Strategies to increase use of antenatal corticosteroids vs usual care

Stillbirth · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids probably leads to higher stillbirth (at population level) compared with routine (usual) care (moderate certainty).

1 finding from 1 review

Strategies to increase use of antenatal corticosteroids vs usual care

Maternal infection or inflammation (at population level) · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids may leads to higher maternal infection or inflammation (at population level) compared with routine (usual) care (low certainty).

1 finding from 1 review

Strategies to increase use of antenatal corticosteroids vs usual care

Maternal death · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids showed no clear difference in maternal mortality (at population level) compared with routine (usual) care (low certainty).

1 finding from 1 review

Ambroxol vs placebo or no treatment

Other events in newborns ‐ Administration of pulmonary surfactant frequency in newborns · women at risk of preterm birth

Ambroxol showed no clear difference in other events in newborns ‐ Administration of pulmonary surfactant… compared with placebo or no treatment (low certainty).

1 finding from 1 review