Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,514 questions · 1,543 findings · 649 reviews

No studies found 224 · 14.5%GRADE not reported 105 · 6.8%Very low 383 · 24.8%Low 447 · 29%Moderate 293 · 19%High 91 · 5.9%

TCAs with predominantly SRI actions vs placebo

Dropouts due to adverse events · adults with trichotillomania

It is very uncertain whether TCAs with predominantly SRI actions changes tolerability of treatment ‐ dropouts due to adverse eventsdDropout… compared with placebo (very low certainty).

1 finding from 1 review

Recombinant zoster vaccine vs placebo

Adverse effects of any severity (systemic symptoms) · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine probably leads to higher participants with adverse events ‐ any systemic symptomClinical… compared with placebo (moderate certainty).

1 finding from 1 review

Acetazolamide vs placebo

Adverse events: Paresthesias‐ Follow‐ up: From arrival to 24 hours later · participants at risk of high altitude illness

Acetazolamide may leads to higher adverse events: Paresthesias‐ Follow‐ up: From arrival to 24 hours… compared with placebo (low certainty).

1 finding from 1 review

Summary of Findings Table ‐ AbobotulinumtoxinA 50U vs placebo

Major adverse events (eyelid ptosis, eyelid sensory disorder, strabismus) · glabellar lines

Summary of Findings Table ‐ AbobotulinumtoxinA 50U showed no clear difference in major adverse events (eyelid ptosis, eyelid sensory disorder,… compared with placebo (moderate certainty).

1 finding from 1 review

Vitamin E (capsules 2000 IU/day in two divided doses) vs placebo

Number of participants experiencing any serious adverse events · people with Alzheimer's disease

Vitamin E (capsules 2000 IU/day in two divided doses) showed no clear difference in adverse events Number of participants reporting ≥ 1 serious adverse… compared with placebo (moderate certainty).

1 finding from 1 review

Corticosteroids vs placebo or usual care

Number of participants with adverse events ‐ superinfection (up to longest · children and adults with sepsis

Corticosteroids showed no clear difference in number of participants with adverse events ‐ superinfection (up to… compared with placebo or usual care (moderate certainty).

1 finding from 1 review

Omega‐3 fatty acids and antioxidants vs standard diet or placebo

Adverse effects (cardiac) · adults (aged 18 years or older), mechanically ventilated participants with ARDS as defined by the Berlin definition of ARDS or, for older…

It is very uncertain whether omega‐3 fatty acids and antioxidants changes cardiac adverse events (study author reported anytime during study… compared with placebo or standard nutrition (very low certainty).

1 finding from 1 review