Findings

What do systematic reviews say?

973 questions · 1,024 findings · 106 reviews

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No studies found 235 · 22.9%GRADE not reported 59 · 5.8%Very low 207 · 20.2%Low 271 · 26.5%Moderate 177 · 17.3%High 75 · 7.3%

Summary of findings: fat‐soluble vitamin E vs control

Height (cm) · adults and children with cystic fibrosis

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin E supplementation in people with cystic fibrosis 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Summary of findings: fat‐soluble vitamin E vs control

FEV1 % predicted: absolute change from baseline · adults and children with cystic fibrosis

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin E supplementation in people with cystic fibrosis 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin D plus calcium vs placebo or control

Hip Fracture · post‐menopausal women and older people at risk of osteoporotic fractures

Vitamin D [D2, D3 or 25(OH)D] plus calcium leads to lower persons sustaining new hip fracture (1 year estimate) compared with control or placebo (high certainty).

1 finding from 1 review

Vitamin D and vitamin D analogues for preventing fractures in post‐menopausal women and older men 2014 · Cochrane Headline outcomes only
RR 0.84 [0.74, 0.96]
9 studies · 49853 participants
High

Vitamin D plus calcium vs placebo or control

Persons sustaining new non‐vertebral fracture (1 year estimate) · post‐menopausal women and older people at risk of osteoporotic fractures

1 finding from 1 review

Vitamin D and vitamin D analogues for preventing fractures in post‐menopausal women and older men 2014 · Cochrane Headline outcomes only
0.86 [0.78, 0.96]
8 studies · 10380 participants
High

Vitamin D plus calcium vs placebo or control

Fractures: vertebral or deformity · post‐menopausal women and older people at risk of osteoporotic fractures

1 finding from 1 review

Vitamin D and vitamin D analogues for preventing fractures in post‐menopausal women and older men 2014 · Cochrane Headline outcomes only
0.89 [0.74, 1.09]
4 studies · 42185 participants
Moderate

Vitamin D plus calcium vs placebo or control

New fractures · post‐menopausal women and older people at risk of osteoporotic fractures

Vitamin D [D2, D3 or 25(OH)D] plus calcium leads to lower persons sustaining any new fracture (1 year estimate) compared with control or placebo (high certainty).

1 finding from 1 review

Vitamin D and vitamin D analogues for preventing fractures in post‐menopausal women and older men 2014 · Cochrane Headline outcomes only
RR 0.95 [0.9, 0.99]
10 studies · 49976 participants
High

Non‐vitamin‐K‐antagonist oral anticoagulants vs placebo

Apixaban (all doses combined) vs placebo · adults after AMI without an indication for anticoagulation

3 findings from 1 review

Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 8638 participants
Moderate
Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 8638 participants
Moderate
Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 8544 participants
High

Non‐vitamin‐K‐antagonist oral anticoagulants vs placebo

Rivaroxaban (all doses combined) vs placebo · adults after AMI without an indication for anticoagulation

3 findings from 1 review

Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 21870 participants
High
Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 21870 participants
Moderate
Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 21870 participants
High

Non‐vitamin‐K‐antagonist oral anticoagulants vs placebo

Dabigatran (all doses combined) vs placebo · adults after AMI without an indication for anticoagulation

3 findings from 1 review

Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
1 study · 1861 participants
Low
Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
1 study · 1861 participants
Low
Non‐vitamin‐K‐antagonist oral anticoagulants (NOACs) after acute myocardial infarction: a network meta‐analysis 2024 · Cochrane Headline outcomes only
no estimate extracted
1 study · 1861 participants
Low

Summary of findings: water‐soluble vitamin E vs control

Body‐mass index (BMI) · adults and children with cystic fibrosis

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin E supplementation in people with cystic fibrosis 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Summary of findings: water‐soluble vitamin E vs control

Height (cm) · adults and children with cystic fibrosis

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin E supplementation in people with cystic fibrosis 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Summary of findings: water‐soluble vitamin E vs control

FEV1 % predicted: absolute change from baseline · adults and children with cystic fibrosis

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin E supplementation in people with cystic fibrosis 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin C vs placebo

Health‐related quality of life (HRQL) · people with asthma

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
1 study · 201 participants
Low

Vitamin C vs placebo

Adverse events · adults and children with exercise‐induced bronchoconstriction/asthma

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin C vs placebo

Asthma exacerbations · people with asthma

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
1 study · 16 participants
Very low

Vitamin C vs placebo

Lung function: FEV1 mL (change from baseline) · people with asthma

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
1 study · 201 participants
Moderate

Vitamin C vs placebo

Asthma symptoms · people with asthma

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
1 study · 201 participants
Moderate

Vitamin C vs placebo

Adverse events · people with asthma

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
1 study · 41 participants
Very low

Vitamin C vs placebo

Health‐related quality of life (HRQL) · adults and children with exercise‐induced bronchoconstriction/asthma

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitamin C vs placebo

Asthma exacerbations · adults and children with exercise‐induced bronchoconstriction/asthma

The review found no eligible studies for this question.

1 finding from 1 review

Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found