Findings

What do systematic reviews say?

2,539 questions · 2,602 findings · 424 reviews · Headline outcomes only

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No studies found 572 · 22%GRADE not reported 189 · 7.3%Very low 527 · 20.3%Low 685 · 26.3%Moderate 514 · 19.8%High 115 · 4.4%

Low dietary fat vs usual fat

Waist circumference · Adults (general population)

1 finding from 1 review

Effects of total fat intake on body fatness in adults 2020 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 16685 participants
High

Low dietary fat vs usual fat

Body fatness (represented by percentage body fat) · Adults (general population)

1 finding from 1 review

Effects of total fat intake on body fatness in adults 2020 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 2415 participants
High

Low dietary fat vs usual fat

Potential harms ‐ serum lipids, mmol/L · Adults (general population)

1 finding from 1 review

Effects of total fat intake on body fatness in adults 2020 · Cochrane Headline outcomes only
no estimate extracted
22 studies · 9812 participants
High

Low dietary fat vs usual fat

Blood pressure · Adults (general population)

1 finding from 1 review

Effects of total fat intake on body fatness in adults 2020 · Cochrane Headline outcomes only
no estimate extracted
10 studies · 6078 participants
High

Low dietary fat vs usual fat

Potential harms ‐ quality of life (QoL) · Adults (general population)

1 finding from 1 review

Effects of total fat intake on body fatness in adults 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 40130 participants
Low

Primary nursing vs usual/team/functional nursing

Nursing‐staff turnover · nurses working on medical or long‐term psychiatric units

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
464 participants
Very low

Primary nursing vs usual/team/functional nursing

Patient mortality · nurses working on medical or long‐term psychiatric units

The review found no eligible studies for this question.

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Primary nursing vs usual/team/functional nursing

Patient readmissions · nurses working on medical or long‐term psychiatric units

The review found no eligible studies for this question.

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Primary nursing vs usual/team/functional nursing

Patient attendances at the ED · nurses working on medical or long‐term psychiatric units

The review found no eligible studies for this question.

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Primary nursing vs usual/team/functional nursing

Length of stay · nurses working on medical or long‐term psychiatric units

The review found no eligible studies for this question.

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Primary nursing vs usual/team/functional nursing

Patients with pressure ulcers · nurses working on medical or long‐term psychiatric units

The review found no eligible studies for this question.

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Primary nursing vs usual/team/functional nursing

Costs · nurses working on medical or long‐term psychiatric units

1 finding from 1 review

Hospital nurse‐staffing models and patient‐ and staff‐related outcomes 2019 · Cochrane Headline outcomes only
no estimate extracted
138 participants
Very low

Exercise vs no exercise at longest available follow‐up

Exercise capacity · adult patients with an implantable cardioverter defibrillator

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 136 participants
Very low

Exercise vs no exercise at longest available follow‐up

ICD, antitachycardia pacing ( · adult patients with an implantable cardioverter defibrillator

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 196 participants
Very low

Exercise vs no exercise at longest available follow‐up

ICD, appropriate shock ( · adult patients with an implantable cardioverter defibrillator

It is very uncertain whether exercise changes ICD, appropriate shock ( compared with no exercise at longest available follow‐up (very low certainty).

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
RR 0.28 [0.05, 1.65]
4 studies · 384 participants
Very low

Exercise vs no exercise at longest available follow‐up

ICD, all shocks ( · adult patients with an implantable cardioverter defibrillator

It is very uncertain whether exercise changes ICD, all shocks ( compared with no exercise at longest available follow‐up (very low certainty).

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
RR 0.89 [0.7, 1.12]
1 study · 1053 participants
Very low

Exercise vs no exercise at longest available follow‐up

Health‐related quality of life (HRQoL) · adult patients with an implantable cardioverter defibrillator

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 52 participants
Very low

Exercise vs no exercise at longest available follow‐up

All‐cause mortality ( · adult patients with an implantable cardioverter defibrillator

It is very uncertain whether exercise changes all‐cause mortality ( compared with no exercise at longest available follow‐up (very low certainty).

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
RR 1.18 [0.65, 2.14]
3 studies · 332 participants
Very low

Exercise vs no exercise at longest available follow‐up

Serious adverse events ( · adult patients with an implantable cardioverter defibrillator

It is very uncertain whether exercise changes serious adverse events ( compared with no exercise at longest available follow‐up (very low certainty).

1 finding from 1 review

Exercise‐based cardiac rehabilitation for adult patients with an implantable cardioverter defibrillator 2019 · Cochrane Headline outcomes only
RR 0.81 [0.61, 1.08]
3 studies · 188 participants
Very low

Intervention not reported

Stroke and other systemic embolic events · people with atrial fibrillation deemed eligible for long‐term anticoagulant treatment

The intervention leads to lower stroke and other systemic embolic events (high certainty).

1 finding from 1 review

Factor Xa inhibitors versus vitamin K antagonists for preventing cerebral or systemic embolism in patients with atrial… 2018 · Cochrane Headline outcomes only
OR 0.89 [0.82, 0.97]
13 studies · 67477 participants
High