Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,024 questions · 3,338 findings · 330 reviews

No studies found 735 · 22%GRADE not reported 282 · 8.4%Very low 962 · 28.8%Low 870 · 26.1%Moderate 384 · 11.5%High 105 · 3.1%

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

Educational intervention vs no educational intervention

Duration of exclusive breastfeeding (≥ 4 months of age) Measurement: proportion of participants with event · children of complementary feeding age

It is very uncertain whether educational intervention changes duration of exclusive breastfeeding (≥ 4 months of age) Measurement:… compared with no educational intervention (very low certainty).

3 findings from 1 review

Educational intervention vs no educational intervention

Hygiene practices: community‐based intervention Measurement: proportion of participants with event · children of complementary feeding age

Educational intervention probably leads to higher hygiene practices: community‐based intervention Measurement:… compared with no educational intervention (moderate certainty).

1 finding from 1 review

Visual interventions vs control

Activities of daily living · spatial neglect or inattention following stroke and other adult‐acquired non‐progressive brain injury

It is very uncertain whether visual interventions changes activities of daily living: effects persisting at least 1 month post… compared with any control (very low certainty).

2 findings from 1 review

Visual interventions vs control

Neglect outcomes: effects persisting at least 1 month post intervention · spatial neglect or inattention following stroke and other adult‐acquired non‐progressive brain injury

It is very uncertain whether visual interventions changes neglect outcomes: effects persisting at least 1 month post… compared with any control (very low certainty).

1 finding from 1 review