Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,696 questions · 3,815 findings · 855 reviews

No studies found 573 · 15%GRADE not reported 374 · 9.8%Very low 993 · 26%Low 1,062 · 27.8%Moderate 614 · 16.1%High 199 · 5.2%

Intervention not reported

Salt intake in grams per day ‐ all eligible studies that provided sufficient data for quantitative analysis of overall impact (n = 10 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption
1 finding from 1 review

Intervention not reported

Salt intake in grams per day ‐ subset of initiatives that are multi‐component and incorporate activities of a structural nature (n = 7 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption
1 finding from 1 review

Intervention not reported

Daily hours of hearing aid use Self‐reported or data‐logged average hours of use per day. Scale from: 0 to 12 hours · adults with hearing loss who use hearing aids
1 finding from 1 review

Intervention not reported

Daily hours of hearing aid use Average self‐reported or data‐logged hours of use per day. Scale from: 0 to 12 hours · adults with hearing loss who use hearing aids
1 finding from 1 review

Intranasal beta‐estradiol vs placebo

Adverse effects Intranasal beta‐estradiol 0.021 mg/day, 0.029 mg/day or 0.040 mg/day · women with hot flushes

Intranasal beta‐estradiol probably leads to higher adverse effects Intranasal beta‐estradiol 0.021 mg/day, 0.029 mg/day… compared with placebo (moderate certainty).

1 finding from 1 review