Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,183 questions · 2,385 findings · 241 reviews

No studies found 558 · 23.4%GRADE not reported 158 · 6.6%Very low 704 · 29.5%Low 618 · 25.9%Moderate 276 · 11.6%High 71 · 3%

Intervention vs no intervention or control intervention (control)

Serious adverse events (number) ‐ pegylated interferon‐alpha plus ribavirin versus pegylated interferon‐alpha · people with acute hepatitis C infection

It is very uncertain whether intervention changes serious adverse events (proportion) ‐ pegylated interferon‐alpha… compared with no intervention or control intervention (control) (very low certainty).

2 findings from 1 review

Intervention vs no intervention or control intervention (control)

Chronic HCV infection†‐ interferon‐alpha versus no intervention · people with acute hepatitis C infection

It is very uncertain whether intervention changes chronic HCV infection†‐ interferon‐alpha versus no intervention compared with no intervention or control intervention (control) (very low certainty).

1 finding from 1 review

Intervention vs no intervention or control intervention (control)

Chronic HCV infection†‐ interferon‐beta versus no intervention · people with acute hepatitis C infection

It is very uncertain whether intervention changes chronic HCV infection†‐ interferon‐beta versus no intervention compared with no intervention or control intervention (control) (very low certainty).

1 finding from 1 review

Intervention vs no intervention or control intervention (control)

Chronic HCV infection†‐ MTH‐68/B vaccine versus no intervention · people with acute hepatitis C infection

It is very uncertain whether intervention changes chronic HCV infection†‐ MTH‐68/B vaccine versus no intervention compared with no intervention or control intervention (control) (very low certainty).

1 finding from 1 review

Intervention vs no intervention or control intervention (control)

Chronic HCV infection†‐ pegylated interferon‐alpha plus ribavirin versus pegylated interferon‐alpha · people with acute hepatitis C infection

It is very uncertain whether intervention changes chronic HCV infection†‐ pegylated interferon‐alpha plus ribavirin… compared with no intervention or control intervention (control) (very low certainty).

1 finding from 1 review

Intervention vs no intervention or control intervention (control)

Adverse events (proportion) ‐ interferon‐alpha versus no intervention · people with acute hepatitis C infection

It is very uncertain whether intervention changes adverse events (proportion) ‐ interferon‐alpha versus no intervention compared with no intervention or control intervention (control) (very low certainty).

1 finding from 1 review

Intervention vs no intervention or control intervention (control)

Adverse events (number) ‐ interferon‐beta versus no intervention · people with acute hepatitis C infection

It is very uncertain whether intervention changes adverse events (proportion) ‐ interferon‐beta versus no intervention compared with no intervention or control intervention (control) (very low certainty).

2 findings from 1 review

One active intervention (surgical, medical, or psychological) vs A different active intervention (direct head-to-head comparison)

Outcome not reported · Patients of any age in any setting requiring intervention for iatrogenic injury to the inferior alveolar or lingual nerve

The review found no eligible studies for this question.

1 finding from 1 review

An intervention in which the focus is on work‐related risk factors on an individual level vs no intervention/no stress‐reduction interventionfor stress reduction

Stress symptoms ( · healthcare workers
3 findings from 1 review

Any intervention to manage relapse: fixed options (labial braces, lingual braces, fixed lingual wire) or removable options (Hawley's retainer with spring elastomeric module, Bloore removable aligner, other Hawley's retainer modifications, Invisalign, Clearstep) vs no intervention or another intervention

Treatment time · Participants who previously underwent orthodontic treatment, with subsequent crowding (relapse) of the lower front teeth (lower incisors…

The review found no eligible studies for this question.

1 finding from 1 review