Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

458 questions · 473 findings · 205 reviews

No studies found 128 · 27.1%GRADE not reported 49 · 10.4%Very low 142 · 30%Low 106 · 22.4%Moderate 36 · 7.6%High 12 · 2.5%

Transurethral microwave thermotherapy vs transurethral resection of the prostate

Major adverse events · men with lower urinary tract symptoms secondary to benign prostatic obstruction

Transurethral microwave thermotherapy probably leads to lower major adverse events compared with transurethral resection of the prostate (moderate certainty).

1 finding from 1 review

Convective radiofrequency water vapour thermal therapy vs sham

Major adverse events · men with lower urinary tract symptoms suggesting benign prostatic hyperplasia

It is very uncertain whether convective radiofrequency water vapour thermal therapy changes major adverse events compared with sham procedure (very low certainty).

1 finding from 1 review

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Adverse events associated with treatment · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)
1 finding from 1 review

Vitamin A vs placebo

Adverse events: yellowing of the skin · healthy people and healthy male physicians

Vitamin A leads to higher adverse events: yellowing of the skin compared with placebo (high certainty).

1 finding from 1 review

Intervention not reported

Adverse events ‐ shallow anterior chamber · People undergoing trabeculectomy surgery with glaucoma

It is very uncertain whether the intervention changes adverse events ‐ shallow anterior chamber (very low certainty).

1 finding from 1 review

Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs

Number of participants with adverse events leading to study discontinuation · Lennox‐Gastaut syndrome, any age

Clobazam (low, medium and high doses) plus ASMs leads to higher number of participants with adverse events leading to study… compared with placebo plus ASMs (high certainty).

1 finding from 1 review