Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,710 questions · 14,842 findings · 1,394 reviews

No studies found 2,880 · 19.4%GRADE not reported 1,413 · 9.5%Very low 3,103 · 20.9%Low 3,870 · 26.1%Moderate 2,663 · 17.9%High 913 · 6.2%

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Live zoster vaccine vs placebo

Participants with adverse events: 1 or more serious adverse events regardless of type of storage of the vaccine Clinical or laboratory criteria · healthy older adults aged ≥ 60 years

Live zoster vaccine showed no clear difference in participants with adverse events: 1 or more serious adverse events… compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Systemic adverse events at · healthy older adults aged ≥ 60 years

Live zoster vaccine showed no clear difference in participants with adverse events ‐ systemic adverse eventsClinical… compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Participants with adverse events ‐ injection site adverse events Clinical criteria · healthy older adults aged ≥ 60 years

Live zoster vaccine probably leads to higher participants with adverse events ‐ injection site adverse… compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Dropouts Clinical or laboratory criteria · healthy older adults aged ≥ 60 years

Live zoster vaccine showed no clear difference in dropoutsClinical or laboratory criteria compared with placebo (moderate certainty).

1 finding from 1 review

Recombinant zoster vaccine vs placebo

Cumulative incidence of herpes zoster at least 3.2 years · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine probably leads to lower cumulative incidence of herpes zoster at least 3.2 years compared with placebo (moderate certainty).

1 finding from 1 review

Recombinant zoster vaccine vs placebo

Participants with adverse events ‐ death Clinical criteria · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine showed no clear difference in participants with adverse events ‐ deathClinical criteria compared with placebo (moderate certainty).

1 finding from 1 review

Immunoglobulin vs placebo

Mortality (any cause during hospitalisation or · children with respiratory syncytial virus infection

It is very uncertain whether summary of findings table ‐ Immunoglobulins changes mortality (any cause during hospitalisation or compared with placebo (very low certainty).

1 finding from 1 review

Immunoglobulin vs placebo

Adverse events of any severity or seriousness · children with respiratory syncytial virus infection

Summary of findings table ‐ Immunoglobulins showed no clear difference in adverse events of any severity or seriousness compared with placebo (low certainty).

1 finding from 1 review

Hormonal therapy vs placebo or no intervention

Effect on later sexual function · symptomatic or early postmenopausal women1.
4 findings from 1 review
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Hormonal therapy vs placebo or no intervention

Effect on later sexual function · Postmenopausal women
5 findings from 1 review
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Methylphenidate vs placebo or no intervention

ADHD symptoms · Children and adolescents with ADHD

It is very uncertain whether methylphenidate changes ADHD symptoms: all parallel‐group trials and first‐period cross‐over… compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Methylphenidate vs placebo or no intervention

Proportion of participants with one or more serious adverse events · Children and adolescents with ADHD

It is very uncertain whether methylphenidate changes proportion of participants with one or more serious adverse events compared with placebo or no intervention (very low certainty).

1 finding from 1 review