Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,288 questions · 3,354 findings · 516 reviews · Headline outcomes only

No studies found 720 · 21.5%GRADE not reported 164 · 4.9%Very low 950 · 28.3%Low 932 · 27.8%Moderate 434 · 12.9%High 154 · 4.6%

Intervention not reported

Suicide (Observation period ‐ pre‐intervention: 119.5 years; postintervention: 92 years) · adults or children of all ethnicities

The intervention may leads to lower suicide (Observation period ‐ pre‐intervention: 119.5 years;… (low certainty).

1 finding from 1 review

Intervention not reported

Cost‐effectiveness of interventions · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Suicide (Observation period: pre‐intervention 30.5 years; postintervention 13.5 years) · adults or children of all ethnicities

The intervention may leads to lower suicide (Observation period: pre‐intervention 30.5 years;… (low certainty).

1 finding from 1 review

Intervention not reported

Attempted suicide · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Study withdrawal · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Change in hospital admission rates · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Cost‐effectiveness of interventions · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Suicide (Observation period: pre‐intervention 81.5 years; postintervention 71.8 years) · adults or children of all ethnicities

The intervention may leads to lower suicide (Observation period: pre‐intervention 81.5 years;… (low certainty).

1 finding from 1 review

Intervention not reported

Attempted suicide · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Study withdrawal · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Change in hospital admission rates · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Attempted suicide · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Cost‐effectiveness of interventions (the study reviewed suicide data from a bridge and surrounding areas over a 70‐year period, and estimated reductions in mortality due to the barrier over a 20‐year period) · adults or children of all ethnicities
1 finding from 1 review

Intervention not reported

Suicide (Observation period: pre‐intervention 19.5 years; postintervention 6.5 years) · adults or children of all ethnicities

The intervention may leads to lower suicide (Observation period: pre‐intervention 19.5 years;… (low certainty).

1 finding from 1 review

Intervention not reported

Attempted suicide · adults or children of all ethnicities

The review found no eligible studies for this question.

1 finding from 1 review