Findings

What do systematic reviews say?

128 questions · 130 findings · 41 reviews

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No studies found 24 · 18.5%GRADE not reported 6 · 4.6%Very low 21 · 16.2%Low 38 · 29.2%Moderate 25 · 19.2%High 16 · 12.3%

Summary of findings: Low sodium intake vs high sodium intake

LDL‐cholesterol · Participants with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
18 studies · 696 participants
High

Summary of findings: Low sodium intake vs high sodium intake

White population, hypertensive, SBP mmHg · White population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
88 studies · 3998 participants
High

Summary of findings: Low sodium intake vs high sodium intake

White population, hypertensive, DBP mmHg · White population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
89 studies · 4032 participants
High

Summary of findings: Low sodium intake vs high sodium intake

Black population, normotensive, SBP mmHg · Black population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
7 studies · 253 participants
Low

Summary of findings: Low sodium intake vs high sodium intake

Black population, normotensive, DBP mmHg · Black population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
7 studies · 253 participants
Low

Summary of findings: Low sodium intake vs high sodium intake

Black population, hypertensive, SBP mmHg · Black population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 398 participants
Low

Summary of findings: Low sodium intake vs high sodium intake

Black population, hypertensive, DBP mmHg · Black population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 398 participants
Low

Summary of findings: Low sodium intake vs high sodium intake

Asian population, normotensive, SBP mmHg · Asian population with normal or elevated blood pressure, but otherwise healthy

1 finding from 1 review

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol,… 2020 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 950 participants
Moderate

Index pricing vs no index pricing

Healthcare utilisation · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

The review found no eligible studies for this question.

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Index pricing vs no index pricing

Health outcomes · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

The review found no eligible studies for this question.

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Index pricing vs no index pricing

Adverse events · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

The review found no eligible studies for this question.

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Index pricing vs no index pricing

CI: Confidence interval · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

The review found no eligible studies for this question.

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Index pricing vs no index pricing

Drug use · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Low

Index pricing vs no index pricing

Drug prices · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Low

Index pricing vs no index pricing

Drug expenditure · Norwegian citizens taking one of the following drugs: citalopram (depression), omeprazol (antiulcer), cetirizin (allergy), loratadin…

The review found no eligible studies for this question.

1 finding from 1 review

Pharmaceutical policies: effects of reference pricing, other pricing, and purchasing policies 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Death or major disability by 18 to 24 months corrected age (aligned definition) · extremely preterm infants

The intervention showed no clear difference in death or major disability by 18 to 24 months corrected age (aligned… (high certainty).

1 finding from 1 review

Effects of targeting lower versus higher arterial oxygen saturations on death or disability in preterm infants 2017 · Cochrane Headline outcomes only
RR 1.04 [0.98, 1.1]
5 studies · 4754 participants
High

Intervention not reported

Death to 18 to 24 months corrected age · extremely preterm infants

The intervention leads to higher death to 18 to 24 months corrected age (high certainty).

1 finding from 1 review

Effects of targeting lower versus higher arterial oxygen saturations on death or disability in preterm infants 2017 · Cochrane Headline outcomes only
RR 1.16 [1.03, 1.31]
5 studies · 4873 participants
High

Intervention not reported

Major disability by 18 to 24 months corrected age (aligned definition) · extremely preterm infants

The intervention showed no clear difference in major disability by 18 to 24 months corrected age (aligned definition) (high certainty).

1 finding from 1 review

Effects of targeting lower versus higher arterial oxygen saturations on death or disability in preterm infants 2017 · Cochrane Headline outcomes only
RR 1.01 [0.93, 1.09]
5 studies · 3867 participants
High

Intervention not reported

Retinopathy of prematurity requiring treatment · extremely preterm infants

The intervention probably leads to lower retinopathy of prematurity requiring treatment (moderate certainty).

1 finding from 1 review

Effects of targeting lower versus higher arterial oxygen saturations on death or disability in preterm infants 2017 · Cochrane Headline outcomes only
RR 0.72 [0.61, 0.85]
5 studies · 4089 participants
Moderate

Intervention not reported

Necrotising enterocolitis · extremely preterm infants

The intervention leads to higher necrotising enterocolitis (high certainty).

1 finding from 1 review

Effects of targeting lower versus higher arterial oxygen saturations on death or disability in preterm infants 2017 · Cochrane Headline outcomes only
RR 1.24 [1.05, 1.47]
5 studies · 4929 participants
High