evidencegaps
Search

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

80 questions · 80 findings · 48 reviews · Pregnancy and Childbirth

Sort:Best matchNewestHighest certaintyDownload CSV
No studies found 4 · 5%GRADE not reported 5 · 6.3%Very low 11 · 13.8%Low 32 · 40%Moderate 14 · 17.5%High 14 · 17.5%

Intervention not reported

Preterm birth < 34 weeks · women carrying twins, asymptomatic for PTL or PPROM

It is very uncertain whether the intervention changes preterm birth < 34 weeks (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

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

Summary of findings table ‐ Midwife continuity models vs other models of care

Preterm birth · childbearing women and their infants (all) (important/secondary outcomes)

Summary of findings table ‐ Midwife continuity of care models showed no clear difference in preterm birth (< 37 weeks) compared with other models of care (low certainty).

1 finding from 1 review

Summary of findings table ‐ Vitamin B12 supplementation vs no supplementation or placebo

Preterm birth · pregnant women

Summary of findings table ‐ Vitamin B12 supplementation showed no clear difference in preterm birth (< 37 weeks) compared with placebo/no vitamin B12 supplementation (low certainty).

1 finding from 1 review

Nitrofurantoin and close surveillance vs close surveillance alone

Preterm birth · pregnant women with a history of one or more UTI before or during pregnancy

It is very uncertain whether nitrofurantoin and close surveillance changes preterm birth (< 37 weeks) compared with close surveillance alone (very 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

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Gestational age (preterm birth < 37 weeks) · Pregnant women who smoke

Outcomes for all interventions for smoking cessation in pregnancy showed no clear difference in preterm birth (under 37 weeks) compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

1 finding from 1 review