Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,454 questions · 3,562 findings · 816 reviews · Headline outcomes only

No studies found 538 · 15.1%GRADE not reported 239 · 6.7%Very low 933 · 26.2%Low 1,041 · 29.2%Moderate 612 · 17.2%High 199 · 5.6%

Simethicone vs placebo

Reduction in crying duration Difference between final values (hours per day of crying) · infants with colic defined by recognised criteria

It is very uncertain whether simethicone changes reduction in crying duration Difference between final values (hours… compared with placebo (very low certainty).

1 finding from 1 review

Herbal agents vs placebo

Reduction in crying duration Difference before and after treatment (hours per day of crying) · patients with infantile colic

Herbal agents may leads to higher reduction in crying duration Difference before and after treatment… compared with placebo (low certainty).

1 finding from 1 review

Sugar vs placebo

Reduction in crying duration Difference before and after treatment (hours per day of crying) · infants with colic defined by recognised criteria

It is very uncertain whether sugar changes reduction in crying duration Difference before and after treatment… compared with placebo (very low certainty).

1 finding from 1 review

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