Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,388 questions · 1,444 findings · 167 reviews

No studies found 336 · 23.3%GRADE not reported 67 · 4.6%Very low 419 · 29%Low 395 · 27.4%Moderate 188 · 13%High 39 · 2.7%

LOD with and without medical ovulation vs medical ovulation induction alone

Live birth · women with anovulatory PCOS and CC resistance

LOD with and without medical ovulation may leads to lower live birth compared with medical ovulation induction alone (low certainty).

2 findings from 1 review

LOD with and without medical ovulation vs medical ovulation induction alone

Multiple pregnancy · women with anovulatory PCOS and CC resistance

LOD with and without medical ovulation probably leads to lower multiple pregnancy compared with medical ovulation induction alone (moderate certainty).

1 finding from 1 review

LOD with and without medical ovulation vs medical ovulation induction alone

Clincial pregnancy · women with anovulatory PCOS and CC resistance

LOD with and without medical ovulation showed no clear difference in clincial pregnancy compared with medical ovulation induction alone (low certainty).

1 finding from 1 review

LOD with and without medical ovulation vs medical ovulation induction alone

Miscarriage · women with anovulatory PCOS and CC resistance

LOD with and without medical ovulation showed no clear difference in miscarriage compared with medical ovulation induction alone (low certainty).

1 finding from 1 review

Endovascular therapy plus conventional medical treatment vs medical treatment

Death or stroke · people with vertebral artery stenosis

Endovascular treat ment plus medical treatment showed no clear difference in 30‐day post‐randomisation death/stroke compared with medical treatment alone (low certainty).

1 finding from 1 review

Endovascular therapy plus conventional medical treatment vs medical treatment

Fatal/non‐fatal stroke in the territory of the treated vertebral artery stenosis(assessed after 30 days post‐randomisation to completion of · people with vertebral artery stenosis

Endovascular treat ment plus medical treatment showed no clear difference in fatal/non‐fatal stroke in the territory of the treated vertebral… compared with medical treatment alone (moderate certainty).

1 finding from 1 review

Endovascular therapy plus conventional medical treatment vs medical treatment

Stroke (ischaemic or haemorrhagic)Median · people with vertebral artery stenosis

Endovascular treat ment plus medical treatment showed no clear difference in stroke (ischaemic or haemorrhagic)Median compared with medical treatment alone (moderate certainty).

1 finding from 1 review

Biomedical risk assessment vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Smoking cessation · people who smoke

Biomedical risk assessment showed no clear difference in feedback on smoking exposure Smoking cessation at longest compared with standard care or minimal intervention (moderate certainty).

3 findings from 1 review