Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

206 questions · 209 findings · 20 reviews · Pregnancy and Childbirth

No studies found 44 · 21.1%GRADE not reported 13 · 6.2%Very low 49 · 23.4%Low 55 · 26.3%Moderate 40 · 19.1%High 8 · 3.8%

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

D4: Survival free of major neurocognitive impairment atmid‐ to later childhood · the child

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids showed no clear difference in D4: Survival free of major neurocognitive impairment atmid‐ to later… compared with single course (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

A7: Severe lung disease – all fetuses randomised · the fetus/neonate/infant

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroid probably leads to lower A7: Severe lung disease – all fetuses randomised compared with single course (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

Chronic lung disease · the fetus/neonate/infant

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroid showed no clear difference in A8: Chronic lung disease – all fetuses randomised compared with single course (high certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

Intraventricular haemorrhage, Papile grade 3/4 · the fetus/neonate/infant

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroid showed no clear difference in A9: Severe intraventricular haemorrhage (grade 3 or 4) – all fetuses… compared with single course (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

Necrotising enterocolitis · the fetus/neonate/infant

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroid showed no clear difference in A11: Necrotising enterocolitis – all fetuses randomised compared with single course (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

A12: Composite of serious outcomes– all fetuses randomised · the fetus/neonate/infant

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroid probably leads to lower A12: Composite of serious outcomes– all fetuses randomised compared with single course (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

Maternal death · the woman

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids showed no clear difference in B1: Maternal death – all women compared with single course (low certainty).

1 finding from 1 review

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids vs single course

B2: Maternal sepsis – an all women · the woman

Summary of findings table ‐ Repeat dose(s) of prenatal corticosteroids showed no clear difference in B2: Maternal sepsis – an all women compared with single course (moderate certainty).

1 finding from 1 review

Betamethasone vs usual care

Respiratory distress syndrome · women undergoing planned elective caesarean section at 37 weeks' gestation and beyond for singleton pregnancy

Effect of antenatal corticosteroids (betamethasone) showed no clear difference in respiratory distress syndrome (RDS) compared with usual care prior to planned caesarean at term on maternal and… (low certainty).

1 finding from 1 review

Betamethasone vs usual care

Transient tachypnoea of the neonate (TTN) · women undergoing planned elective caesarean section at 37 weeks' gestation and beyond for singleton pregnancy

Effect of antenatal corticosteroids (betamethasone) showed no clear difference in transient tachypnoea of the neonate (TTN) compared with usual care prior to planned caesarean at term on maternal and… (low certainty).

1 finding from 1 review

Betamethasone vs usual care

Admission to neonatal special care (all levels) for respiratory morbidity · women undergoing planned elective caesarean section at 37 weeks' gestation and beyond for singleton pregnancy

Effect of antenatal corticosteroids (betamethasone) probably leads to lower admission to neonatal special care (all levels) for respiratory… compared with usual care prior to planned caesarean at term on maternal and… (moderate certainty).

1 finding from 1 review

Betamethasone vs usual care

Need for mechanical ventilation · women undergoing planned elective caesarean section at 37 weeks' gestation and beyond for singleton pregnancy

It is very uncertain whether effect of antenatal corticosteroids (betamethasone) changes need for mechanical ventilation compared with usual care prior to planned caesarean at term on maternal and… (very low certainty).

1 finding from 1 review

Intervention not reported

Preterm birth < 37 weeks · singleton pregnancy with symptoms of PTL

It is very uncertain whether the intervention changes preterm birth < 37 weeks (very low certainty).

1 finding from 1 review