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What do systematic reviews say?

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Evidence found and GRADE certainty

65 questions · 153 findings · 37 reviews · asked by two or more reviews

No studies found 32 · 20.9%GRADE not reported 25 · 16.3%Very low 28 · 18.3%Low 43 · 28.1%Moderate 24 · 15.7%High 1 · 0.7%

Neuronavigation image‐guided surgery vs surgery

Overall survival · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

Neuronavigation image‐guided surgery vs surgery

Progression‐free survival · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

Neuronavigation image‐guided surgery vs surgery

Quality of life · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

iMRI image‐guided surgery vs surgery

Overall survival · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

iMRI image‐guided surgery vs surgery

Progression‐free survival · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

iMRI image‐guided surgery vs surgery

Quality of life · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

5‐ALA image‐guided surgery vs surgery

Adverse events · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

5‐ALA image‐guided surgery vs surgery

Overall survival · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

5‐ALA image‐guided surgery vs surgery

Progression‐free survival · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

5‐ALA image‐guided surgery vs surgery

Quality of life · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

Neuronavigation image‐guided surgery vs surgery

Adverse events · high‐grade glioma

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews

Metformin vs placebo or no treatment

Clinical pregnancy rate · women with polycystic ovary syndrome

It is very uncertain whether metformin changes clinical pregnancy rate per woman ‐ short protocol GnRH‐antagonist compared with placebo or no treatment (very low certainty).

2 findings from 2 reviews · compare the 2 reviews

Metformin vs placebo or no treatment

Miscarriage · women with polycystic ovary syndrome

Metformin showed no clear difference in miscarriage rate per woman compared with placebo or no treatment (low certainty).

2 findings from 2 reviews · compare the 2 reviews

CBT vs treatment

Reduction in anxiety symptoms (parent report) post‐treatment · children and adolescents with anxiety disorders
2 findings from 2 reviews · compare the 2 reviews

CBT vs WAIT LIST

Reduction in anxiety symptoms (parent report) post‐treatment · children and adolescents with anxiety disorders
3 findings from 2 reviews · compare the 2 reviews

Interdental brushing plus toothbrushing vs Toothbrushing alone

Gingivitis · Adults, 16 years and older (dentate)

It is very uncertain whether interdental brushing plus toothbrushing changes gingivitis (gingival index) compared with toothbrushing alone (very low certainty).

3 findings from 2 reviews · compare the 2 reviews

Interdental brushing plus toothbrushing vs Toothbrushing alone

Plaque · Adults, 16 years and older (dentate)

Interdental brushing plus toothbrushing may leads to lower plaque compared with toothbrushing alone (low certainty).

2 findings from 2 reviews · compare the 2 reviews

Interdental brushing plus toothbrushing vs Flossing plus toothbrushing

Gingivitis · Adults, 16 years and older (dentate)

Interdental brushing plus toothbrushing may leads to lower gingivitis (proportion of bleeding sites) compared with flossing plus toothbrushing (low certainty).

4 findings from 2 reviews · compare the 2 reviews
Show 1 more finding

Interdental brushing plus toothbrushing vs Flossing plus toothbrushing

Plaque · Adults, 16 years and older (dentate)

It is very uncertain whether interdental brushing plus toothbrushing changes plaque compared with flossing plus toothbrushing (very low certainty).

3 findings from 2 reviews · compare the 2 reviews

Interdental brushing plus toothbrushing vs Toothbrushing alone

Interproximal caries · Adults, 16 years and older (dentate)

The review found no eligible studies for this question.

2 findings from 2 reviews · compare the 2 reviews