Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

215 questions · 236 findings · 28 reviews · Headline outcomes only

No studies found 45 · 19.1%GRADE not reported 15 · 6.4%Very low 78 · 33.1%Low 50 · 21.2%Moderate 34 · 14.4%High 14 · 5.9%

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

Cervical cerclage in combination with antibiotics and tocolytics vs cervical cerclage

Preterm birth less than 34 weeks' gestation

It is very uncertain whether cervical cerclage in combination with antibiotics and tocolytics changes preterm birth < 34 completed weeks of pregnancy compared with cervical cerclage alone (very low certainty).

1 finding from 1 review