Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

563 questions · 568 findings · 104 reviews · Headline outcomes only

No studies found 53 · 9.3%GRADE not reported 26 · 4.6%Very low 85 · 15%Low 214 · 37.7%Moderate 151 · 26.6%High 39 · 6.9%

Intervention not reported

Survivors at discharge from hospital without severe IVH, PVL, ROP · preterm infants with low birth weight

The intervention showed no clear difference in survivors at discharge from hospital without severe IVH, PVL, ROP (high certainty).

1 finding from 1 review

Intervention not reported

Use of one or more red blood cell transfusions (low and high dose of EPO) during initial hospital stay · preterm infants with low birth weight

It is very uncertain whether the intervention changes use of one or more red blood cell transfusions (low and high dose of… (very low certainty).

1 finding from 1 review

Intervention not reported

Necrotising Enterocolitis ≥ Bell's stage 2 during initial hospital stay · preterm infants with low birth weight

The intervention showed no clear difference in necrotising Enterocolitis ≥ Bell's stage 2 during initial hospital… (moderate certainty).

1 finding from 1 review

Intervention not reported

Retinopathy of prematurity (all stages or stage not reported) during initial hospital stay · preterm infants with low birth weight

It is very uncertain whether the intervention changes retinopathy of prematurity (all stages or stage not reported) during… (very low certainty).

1 finding from 1 review

Intervention not reported

Retinopathy of prematurity (stage ≥ 3) during initial hospital stay · preterm infants with low birth weight

It is very uncertain whether the intervention changes retinopathy of prematurity (stage ≥ 3) during initial hospital stay (very low certainty).

1 finding from 1 review

Cervical cerclage in combination with antibiotics and tocolytics vs cervical cerclage

Perinatal loss: all ‐ including miscarriages and stillbirth (Note: data not available for neonatal death)

It is very uncertain whether cervical cerclage in combination with antibiotics and tocolytics changes perinatal loss: all ‐ including miscarriages and stillbirth (Note:… compared with cervical cerclage alone (very 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

Appropriate ACS treatment (women) · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids may leads to higher appropriate ACS treatment (women) compared with routine (usual) care (low certainty).

1 finding from 1 review

Strategies to increase use of antenatal corticosteroids vs usual care

Inappropriate ACS treatment (women) · women at risk of preterm birth

Strategies to increase use of antenatal corticosteroids may leads to higher inappropriate ACS treatment (women) compared with routine (usual) care (low 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