Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,199 questions · 1,226 findings · 451 reviews

No studies found 289 · 23.6%GRADE not reported 121 · 9.9%Very low 350 · 28.5%Low 279 · 22.8%Moderate 139 · 11.3%High 48 · 3.9%

Pre‐hospital cooling vs in‐hospital cooling

Adverse events ‐ re‐arrest after randomization · patients with out‐of‐hospital cardiac arrest

It is very uncertain whether pre‐hospital cooling changes adverse events ‐ re‐arrest after randomization compared with in‐hospital cooling (very low certainty).

1 finding from 1 review

Lower blood pressure targets vs standard blood pressure targets

Total serious adverse events · cardiovascular disease with high blood pressure

Lower blood pressure targets showed no clear difference in total serious adverse events compared with standard blood pressure targets (low certainty).

1 finding from 1 review

Repair of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) vs Replacement of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam)

Adverse events · Adults (16 years or over) with one or more defective amalgam restoration(s) in a molar or premolar tooth/teeth

The review found no eligible studies for this question.

1 finding from 1 review

Repair of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) vs Replacement of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite)

Adverse events · Adults (16 years or over) with one or more defective resin composite restoration(s) in a molar or premolar tooth/teeth

The review found no eligible studies for this question.

1 finding from 1 review

Laser enamel preparation (with or without acid-etching) vs Acid-etching (phosphoric acid)

Adverse events · Caries-free children to young adults with premolars/molars requiring pit-and-fissure sealants

No adverse events were reported in any included study (ungraded, narrative).

1 finding from 1 review

Antidepressants vs placebo

Total adverse events between 0 and 16 weeks · predominantly knee osteoarthritis

Antidepressant leads to higher total adverse events between 0 and 16 weeks compared with placebo (high certainty).

1 finding from 1 review

Antidepressants vs placebo

Serious adverse events between 0 and 16 weeks · predominantly knee osteoarthritis

Antidepressant showed no clear difference in serious adverse events between 0 and 16 weeks compared with placebo (low certainty).

1 finding from 1 review

Antidepressants vs placebo

Adverse events ‐ Withdrawn for medical reasons · patients with depression during opioid agonist treatment for opioid dependence

Antidepressants probably leads to higher adverse events ‐ Withdrawn for medical reasons compared with placebo (moderate certainty).

1 finding from 1 review

Antidepressants vs placebo according to any definition

Adverse events ‐ Withdrawn for medical reasons · patients with depression during opioid agonist treatment for opioid dependence

Antidepressants probably leads to higher adverse events ‐ Withdrawn for medical reasons compared with placebo according to any definition (moderate certainty).

1 finding from 1 review