Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

229 questions · 231 findings · 28 reviews

No studies found 32 · 13.9%GRADE not reported 3 · 1.3%Very low 28 · 12.1%Low 58 · 25.1%Moderate 60 · 26%High 50 · 21.6%

Enhancing vaccination access vs no intervention or another intervention

Home visit compared to invitation to attend influenza vaccination clinic · people aged 60 years and older living in the community

Enhancing vaccination access leads to higher home visit compared to invitation to attend influenza vaccination… compared with no intervention or another intervention (high certainty).

1 finding from 1 review

Enhancing vaccination access vs no intervention or another intervention

Home visit with encouragement to receive influenza vaccination compared to home visit with safety intervention · people aged 60 years and older living in the community

Enhancing vaccination access showed no clear difference in home visit with encouragement to receive influenza vaccination… compared with no intervention or another intervention (high certainty).

1 finding from 1 review

Enhancing vaccination access vs no intervention or another intervention

Home visit by nurse or group sessions with encouragement to receive influenza vaccination plus care plan developed with physician compared to no intervention · people aged 60 years and older living in the community
1 finding from 1 review

Vaccination vs placebo

Persistence of PHN among all subjects a numerical rating scale for pain1 · people at risk for postherpetic neuralgia

Vaccination leads to lower persistence of PHN among all subjects a numerical rating scale for… compared with placebo (high certainty).

1 finding from 1 review

Vaccination vs placebo

Persistence of PHN among subjects developing herpes zoster a numerical rating scale for pain1 · people at risk for postherpetic neuralgia

Vaccination showed no clear difference in persistence of PHN among subjects developing herpes zoster a… compared with placebo (moderate certainty).

1 finding from 1 review

Vaccination vs placebo

Death during whole · people at risk for postherpetic neuralgia

Vaccination showed no clear difference in deaths among all subjects during the whole study clinical compared with placebo (high certainty).

1 finding from 1 review

Vaccination vs placebo

Serious adverse events among subjects in the adverse event substudy clinical manifestations · people at risk for postherpetic neuralgia

Vaccination leads to higher serious adverse events among subjects in the adverse event substudy… compared with placebo (high certainty).

1 finding from 1 review

Resistance and endurance exercise prior to influenza vaccination vs no exercise prior to influenza vaccination

Incidence of influenza Self‐reported influenza‐like illness · Adults and elderly

It is very uncertain whether resistance and endurance exercise prior to influenza vaccination changes incidence of influenza Self‐reported influenza‐like illness compared with no exercise prior to influenza vaccination (very low certainty).

1 finding from 1 review