Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

428 questions · 430 findings · 82 reviews

No studies found 89 · 20.7%GRADE not reported 33 · 7.7%Very low 93 · 21.6%Low 110 · 25.6%Moderate 79 · 18.4%High 26 · 6%

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

Laxative plus bulking agent vs laxative alone

Adverse effects on women: faecal incontinence during first 10 postpartum days · postpartum women who underwent surgical repair of third degree perineal tears

It is very uncertain whether laxative plus bulking agent changes adverse effects on women: faecal incontinence during first 10… compared with laxative alone (very low certainty).

1 finding from 1 review

Does treatment guided by serial BNP or NT‐proBNP monitoring improve outcomes vs treatment guided by clinical assessment alone?

Heart failure mortality · patients with heart failure

Does treatment guided by serial BNP or NT‐proBNP monitoring improve… showed no clear difference in heart failure mortality compared with treatment guided by clinical assessment alone? (low certainty).

1 finding from 1 review

Does treatment guided by serial BNP or NT‐proBNP monitoring improve outcomes vs treatment guided by clinical assessment alone?

Heart failure hospitalisation (RR) · patients with heart failure

Does treatment guided by serial BNP or NT‐proBNP monitoring improve… may leads to lower heart failure admissions compared with treatment guided by clinical assessment alone? (low certainty).

1 finding from 1 review

Shengmai plus usual treatment vs usual treatment alone

Lack of improvement in heart failure ( NYHA class improved < I class or worsening of heart failure) · patients with heart failure

Shengmai plus usual treatment may leads to lower lack of improvement in heart failure (NYHA class improved < I class… compared with usual treatment alone (low certainty).

1 finding from 1 review

IV or oral iron alone vs no treatment

Red blood cell transfusions (Subnet based on 69 studies including 18,684 participants) · patients at any age with solid cancer or haematological malignancy

IV or oral iron alone showed no clear difference in red blood cell transfusions (Subnet based on 69 studies including… compared with no treatment (low certainty).

1 finding from 1 review

IV or oral iron alone vs no treatment

Overall mortality4 (Subnet based on 71 studies including 21,576 participants) · patients at any age with solid cancer or haematological malignancy

IV or oral iron alone showed no clear difference in overall mortality4 (Subnet based on 71 studies including 21,576… compared with no treatment (low certainty).

1 finding from 1 review