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What do systematic reviews say?

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Evidence found and GRADE certainty

4,678 questions · 4,859 findings · 283 reviews

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No studies found 1,225 · 25.2%GRADE not reported 215 · 4.4%Very low 1,241 · 25.5%Low 1,210 · 24.9%Moderate 776 · 16%High 192 · 4%

Antibiotics vs no antibiotics

Clinical pregnancy rate · embryo transfer (ET) in assisted reproductive technology (ART)

Summary of findings table ‐ Antibiotics showed no clear difference in clinical pregnancy rate (CPR) compared with control (no antibiotics) (low certainty).

1 finding from 1 review

Antibiotics vs no antibiotics

Genital Tract Colonisation · embryo transfer (ET) in assisted reproductive technology (ART)

It is very uncertain whether summary of findings table ‐ Antibiotics changes genital tract colonization compared with control (no antibiotics) (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Progestogens vs GnRH agonist

Live birth or ongoing pregnancy · assisted reproduction technology cycles

Summary of findings table ‐ Progestagen showed no clear difference in live birth or ongoing pregnancy compared with gnRH agonist (low certainty).

1 finding from 1 review

Summary of findings table ‐ Progestogens vs GnRH agonist

Oocyte pick‐up cancellation · assisted reproduction technology cycles

Summary of findings table ‐ Progestagen showed no clear difference in oocyte pick‐up cancellation compared with gnRH agonist (low certainty).

1 finding from 1 review

Summary of findings table ‐ Progestogens vs GnRH agonist

Moderate or severe OHSS · assisted reproduction technology cycles

It is very uncertain whether summary of findings table ‐ Progestagen changes moderate or severe OHSS compared with gnRH agonist (very low certainty).

1 finding from 1 review

Summary of findings table ‐ mesh repair vs non‐mesh repair

Surgical site infection · adult patients with incarcerated or strangulated groin hernia

It is very uncertain whether summary of findings table ‐ mesh repair changes surgical site infections within 30 days of repair compared with non‐mesh repair (very low certainty).

1 finding from 1 review

Summary of findings table ‐ mesh repair vs non‐mesh repair

Mortality within 30 days of repair · adult patients with incarcerated or strangulated groin hernia

It is very uncertain whether summary of findings table ‐ mesh repair changes mortality within 30 days of repair compared with non‐mesh repair (very low certainty).

1 finding from 1 review

Summary of findings table ‐ mesh repair vs non‐mesh repair

Clinical recurrence or reoperation for recurrence within one year of repair · adult patients with incarcerated or strangulated groin hernia

It is very uncertain whether summary of findings table ‐ mesh repair changes clinical recurrence or reoperation for recurrence within one year of… compared with non‐mesh repair (very low certainty).

1 finding from 1 review