Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

96 questions · 109 findings · 14 reviews

No studies found 11 · 10.1%GRADE not reported 3 · 2.8%Very low 21 · 19.3%Low 52 · 47.7%Moderate 22 · 20.2%High 0 · 0%

Metformin combined with clomiphene citrate vs clomiphene

Miscarriage · women with polycystic ovary syndrome

Metformin combined with clomiphene citrate showed no clear difference in miscarriage rate per woman compared with clomiphene citrate alone (low certainty).

2 findings from 2 reviews · compare the 2 reviews

Metformin combined with clomiphene citrate vs clomiphene

Live birth rate per woman · women with polycystic ovary syndrome

Metformin combined with clomiphene citrate showed no clear difference in live birth rate per woman compared with clomiphene citrate alone (low certainty).

2 findings from 2 reviews · compare the 2 reviews

Metformin combined with clomiphene citrate vs clomiphene

Gastrointestinal adverse events · women with polycystic ovary syndrome

Metformin combined with clomiphene citrate probably leads to higher adverse events (gastrointestinal) per woman compared with clomiphene citrate alone (moderate certainty).

2 findings from 2 reviews · compare the 2 reviews

Metformin combined with clomiphene citrate vs clomiphene

Clinical pregnancy rate · women with polycystic ovary syndrome

Metformin combined with clomiphene citrate probably leads to higher clinical pregnancy rate per woman compared with clomiphene citrate alone (moderate certainty).

2 findings from 2 reviews · compare the 2 reviews

Metformin combined with clomiphene citrate vs clomiphene

Ovulation rate · women with polycystic ovary syndrome

Metformin combined with clomiphene citrate may leads to higher ovulation rate per woman compared with clomiphene citrate alone (low certainty).

2 findings from 2 reviews · compare the 2 reviews

Potassium citrate vs no intervention

Proportion of participants who developed a new urinary stone · children with idiopathic urinary calculi treated with shockwave lithotripsy

Potassium citrate may leads to lower proportion of participants who developed a new urinary stone compared with no intervention (low certainty).

1 finding from 1 review

Potassium citrate vs no intervention

Proportion of participants with adverse events while undergoing intervention · children with idiopathic urinary calculi treated with shockwave lithotripsy

It is very uncertain whether potassium citrate changes proportion of participants with adverse events while undergoing… compared with no intervention (very low certainty).

1 finding from 1 review