Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

402 questions · 411 findings · 41 reviews

No studies found 99 · 24.1%GRADE not reported 32 · 7.8%Very low 132 · 32.1%Low 112 · 27.3%Moderate 33 · 8%High 3 · 0.7%

Probiotics vs placebo

Diagnosis of gestational diabetes · preventing gestational diabetes

Probiotics showed no clear difference in diagnosis of gestational diabetes mellitus compared with placebo (low certainty).

1 finding from 1 review

Probiotics vs placebo

Mortality or morbidity composite · preventing gestational diabetes

Probiotics showed no clear difference in mortality or morbidity composite compared with placebo (low certainty).

1 finding from 1 review

Probiotics vs placebo

Hypoglycaemia · preventing gestational diabetes

Probiotics showed no clear difference in hypoglycaemia as defined by trialists compared with placebo (low certainty).

1 finding from 1 review

Probiotics vs placebo

Hypertensive disorders of pregnancy: pre‐eclampsia · preventing gestational diabetes

Probiotics leads to higher hypertensive disorders of pregnancy (pre‐eclampsia) compared with placebo (high certainty).

1 finding from 1 review

Probiotics vs placebo

Large‐for‐gestational age · preventing gestational diabetes

Probiotics showed no clear difference in large‐for‐gestational age compared with placebo (moderate certainty).

1 finding from 1 review

Probiotics vs placebo

Perinatal mortality · preventing gestational diabetes

Probiotics showed no clear difference in perinatal mortality (stillbirth and neonatal mortality) compared with placebo (low certainty).

1 finding from 1 review