Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

436 questions · 451 findings · 96 reviews · Headline outcomes only

No studies found 31 · 6.9%GRADE not reported 17 · 3.8%Very low 149 · 33%Low 130 · 28.8%Moderate 103 · 22.8%High 21 · 4.7%

Summary of findings: one active intervention vs other active intervention

ADL outcome · people with stroke
2 findings from 1 review

Intervention not reported

Rate of participation [case notes or questionnaire, measured immediately or up to four weeks post‐intervention] · people with a health condition (or pregnant) considering real clinical trial participation (across a range of topic areas)

The intervention may leads to lower rate of participation [case notes or questionnaire, measured… (low certainty).

1 finding from 1 review

Intervention not reported

Anxiety (or other psychological stress) [Spielberger State and Trait Anxiety score, measured immediately post‐intervention] · people with a health condition (or pregnant) considering real clinical trial participation (across a range of topic areas)

The intervention may leads to lower anxiety (or other psychological stress) [Spielberger State and Trait… (low certainty).

1 finding from 1 review

Intervention not reported

Knowledge [questionnaire (scored out of 80), measured immediately post‐intervention] · people with a health condition or nominally 'well' considering real or hypothetical clinical trial participation in cancer or psychiatric…

The intervention may leads to lower knowledge [questionnaire (scored out of 80), measured immediately… (low certainty).

1 finding from 1 review

Intervention not reported

Knowledge [scored correct answer to single question, measured immediately post‐intervention] · people with a health condition or nominally 'well' considering real or hypothetical clinical trial participation in cancer or psychiatric…

The intervention showed no clear difference in knowledge [scored correct answer to single question, measured… (low certainty).

1 finding from 1 review

Intervention not reported

Satisfaction with the information provided [single question, measured immediately post‐intervention] · people with a health condition or nominally 'well' considering real or hypothetical clinical trial participation in cancer or psychiatric…

The intervention may leads to higher satisfaction with the information provided [single question,… (low certainty).

1 finding from 1 review

Intervention not reported

Knowledge (Multi‐component intervention) [mean number of correct questionnaire responses, assessed immediately post‐intervention] · People with a health condition or nominally 'well' considering real clinical trial participation (across a range of topic areas)
1 finding from 1 review

Intervention not reported

Rate of participation [case notes, measured immediately post‐intervention] · people with a health condition or nominally 'well' considering real or hypothetical clinical trial participation in cancer or psychiatric…

The intervention showed no clear difference in rate of participation [case notes, measured immediately… (low certainty).

1 finding from 1 review