Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

143 questions · 148 findings · 21 reviews · ENT

No studies found 67 · 45.3%GRADE not reported 0 · 0%Very low 59 · 39.9%Low 16 · 10.8%Moderate 6 · 4.1%High 0 · 0%

CBT vs no treatment or waiting list

Serious adverse effects at end of treatment · adults with tinnitus

CBT showed no clear difference in serious adverse effects at end of treatment compared with no intervention/waiting list control (moderate certainty).

1 finding from 1 review

Therapeutic swallowing exercises vs sham

Adverse event: Weight loss (> 10%) Change in nutritional status reflected by a patient's weight at 6 weeks after treatment · adults with advanced head and neck cancer

It is very uncertain whether therapeutic swallowing exercises changes adverse event: Weight loss (> 10%) Change in nutritional status… compared with sham intervention (very low certainty).

1 finding from 1 review

Betahistine vs placebo/no treatment

Improvement in vertigo frequency · Ménière’s disease

It is very uncertain whether betahistine changes improvement in vertigo frequency compared with placebo/no treatment (very low certainty).

2 findings from 1 review