Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,006 questions · 3,171 findings · 607 reviews · Headline outcomes only

No studies found 411 · 13%GRADE not reported 153 · 4.8%Very low 968 · 30.5%Low 897 · 28.3%Moderate 589 · 18.6%High 153 · 4.8%

Intervention not reported

Cohort studies ‐ autism risk (moderate/high), MMR · children 9 months to 15 years old

The intervention may leads to lower cohort studies ‐ autism risk (moderate/high), MMR (low certainty).

1 finding from 1 review

n3PUFAs vs placebo

Depressive symptomology (continuous) HDRS where possible; higher scores indicate greater symptomology · adults with Major Depressive Disorder
1 finding from 1 review

n3PUFAs vs placebo

Quality of lifeValidated quality of life scales as used by authors, CGI (7‐point scale) where possible, higher scores indicate poorer quality of life · adults with Major Depressive Disorder
1 finding from 1 review

Interventions delivered by dental professionals vs control

Smoking cessation · participants who used tobacco products

It is very uncertain whether interventions delivered by dental professionals changes behavioural support from dental professional at high school/college… compared with control (very low certainty).

1 finding from 1 review

Supported discharge and multidisciplinary home rehabilitation vs (Optimised) usual care

'Poor outcome' (dead or moved to higher level of care or unable to walk) · Older people undergoing hip fracture aftercare

It is very uncertain whether supported discharge and multidisciplinary home rehabilitation changes 'Poor outcome' (dead or moved to higher level of care or unable to… compared with usual care: mainly (very low certainty).

1 finding from 1 review

Supported discharge and multidisciplinary home rehabilitation vs (Optimised) usual care

Permanent move to higher level of care (hostel, nursing home, sheltered housing) · Older people undergoing hip fracture aftercare

It is very uncertain whether supported discharge and multidisciplinary home rehabilitation changes permanent move to higher level of care (hostel, nursing home,… compared with usual care: mainly (very low certainty).

1 finding from 1 review