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What do systematic reviews say?

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Evidence found and GRADE certainty

568 questions · 575 findings · 105 reviews

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No studies found 53 · 9.2%GRADE not reported 26 · 4.5%Very low 91 · 15.8%Low 215 · 37.4%Moderate 151 · 26.3%High 39 · 6.8%

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The findings closest to your search, judged one by one by TypeSafe's Jev model.

Probiotics administered to pregnant women at risk of preterm birth vs placebo or no intervention

Gestational age (preterm birth < 37 weeks) · preterm infants

Probiotics administered to pregnant women at risk of preterm birth showed no clear difference in preterm birth < 37 weeks' gestation compared with placebo or no intervention (low certainty).

1 finding from 1 review

Probiotics administered to pregnant women at risk of preterm birth vs placebo or no intervention

Miscarriage/stillbirth · preterm infants

Probiotics administered to pregnant women at risk of preterm birth showed no clear difference in miscarriage/stillbirth compared with placebo or no intervention (low certainty).

1 finding from 1 review

Intervention not reported

Preterm birth less than 34 weeks' gestation · women undergoing home monitoring for preventing preterm birth versus women receiving standard care

The intervention leads to lower preterm birth less than 34 weeks' gestation (high certainty).

1 finding from 1 review

Intervention not reported

Preterm birth less than 37 weeks' gestation · women undergoing home monitoring for preventing preterm birth versus women receiving standard care

It is very uncertain whether the intervention changes preterm birth less than 37 weeks' gestation (very low certainty).

1 finding from 1 review

Intervention not reported

Any preterm birth (birth < 37 weeks) · women with a previous stillbirth of > 20 weeks' gestation who are pregnant or considering a subsequent pregnancy

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

1 finding from 1 review

Intervention not reported

Any preterm birth (birth < 37 weeks) · women with a previous stillbirth of ≥ 20 weeks' gestation who are pregnant or considering a subsequent pregnancy

The intervention showed no clear difference in any preterm birth (birth < 37 weeks) (low certainty).

1 finding from 1 review