Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,004 questions · 1,019 findings · 269 reviews

No studies found 333 · 32.7%GRADE not reported 106 · 10.4%Very low 313 · 30.7%Low 189 · 18.5%Moderate 66 · 6.5%High 12 · 1.2%

Acyclovir vs placebo, vitamins, or no treatment

Minor adverse events not leading to withdrawal of treatment · pityriasis rosea

Acyclovir showed no clear difference in minor participant‐reported adverse events not requiring withdrawal… compared with placebo, vitamins, or no treatment (moderate certainty).

1 finding from 1 review

Clarithromycin vs placebo

Minor adverse events not leading to withdrawal of treatment · pityriasis rosea

The review found no eligible studies for this question.

1 finding from 1 review

Oral propranolol vs topical timolol

Adverse events experienced at short or long term ‐ general adverse events 24 weeks' · infantile haemangiomas (strawberry birthmarks) of the skin

It is very uncertain whether oral propranolol changes adverse events experienced at short or long term ‐ general adverse… compared with topical timolol (very low certainty).

1 finding from 1 review

Oral propranolol vs placebo

Adverse events experienced at short or long term ‐ Serious adverse events 24 weeks' · infantile haemangiomas (strawberry birthmarks) of the skin

Oral propranolol showed no clear difference in adverse events experienced at short or long term ‐ Serious adverse… compared with placebo (low certainty).

1 finding from 1 review

Lay health worker‐ vs specialist‐led care

Adverse events ‐ death from suicide during intervention (RR > 1 denotes greater risk)Â · people with severe mental disorders

It is very uncertain whether lay health worker‐ changes adverse events ‐ death from suicide during intervention (RR > 1… compared with specialist‐led care (very low certainty).

1 finding from 1 review

Fractional laser vs combined chemical peeling plus needling

Participant‐assessed adverse events (short‐term) N of participants with adverse events · people with acne scars

It is very uncertain whether fractional laser changes participant‐assessed adverse events (short‐term) N of participants… compared with combined chemical peeling plus needling (very low certainty).

1 finding from 1 review

Chemical peeling vs placebo or no treatment

Serious or severe adverse events N of participants with positive severe adverse events · people with acne scars

It is very uncertain whether chemical peeling changes serious or severe adverse events N of participants with positive… compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Chemical peeling vs combined chemical peeling plus any active intervention

Participant‐assessed adverse events (short‐term) N of participants with adverse events · people with acne scars

It is very uncertain whether chemical peeling changes participant‐assessed adverse events (short‐term) N of participants… compared with combined chemical peeling plus any active intervention (very low certainty).

1 finding from 1 review

Chemical peeling vs needling

Investigator‐assessed adverse events (short‐term) · people with acne scars

Chemical peeling showed no clear difference in investigator‐assessed adverse events (short‐term) N of participants… compared with needling (low certainty).

1 finding from 1 review

Impulsive lifestyle counselling + treatment‐as‐usual vs usual care

Adverse events: death Assessed by: number of participant deaths between a 3‐ and 9‐month · adults with antisocial personality disorder

It is very uncertain whether impulsive lifestyle counselling + treatment‐as‐usual changes adverse events: death Assessed by: number of participant deaths… compared with treatment‐as‐usual alone (very low certainty).

1 finding from 1 review

Corticosteroid creams/ointments: clobetasol propionate foam vs vehicle foam

Primary: adverse events ‐ any adverse event treatment‐related (application site pruritus) · participants with moderate to severe hand eczema

Corticosteroid creams/ointments: clobetasol propionate foam showed no clear difference in primary: adverse events ‐ any adverse event treatment‐related… compared with vehicle foam (moderate certainty).

1 finding from 1 review

Group B cognitive behavioural therapy: cognitive behavioural therapy + risperidone vs placebo and cognitive and behavioural therapies

Adverse effects: specific ‐ doctors' assessment of adverse effects UKU (events) Medium‐term · people in the prodromal stage of psychosis

It is very uncertain whether group B cognitive behavioural therapy: cognitive behavioural therapy… changes adverse effects: specific ‐ doctors' assessment of adverse effects… compared with cognitive behavioural therapy + placebo (very low certainty).

1 finding from 1 review

Group C cognitive behavioural therapy: cognitive behavioural therapy + placebo vs placebo or supportive treatment

Adverse effects: specific ‐ doctors' assessment of adverse effects UKU (events) Medium‐term · people in the prodromal stage of psychosis

It is very uncertain whether group C cognitive behavioural therapy: cognitive behavioural therapy… changes adverse effects: specific ‐ doctors' assessment of adverse effects… compared with supportive therapy + placebo (very low certainty).

1 finding from 1 review

Locking plate vs 2 mm non-locking titanium plates

Post-operative adverse events and complications (paraesthesia, swelling, segmental mobility) · Adults (16 to 68 years) with mandibular fractures excluding condylar involvement
1 finding from 1 review
  • Agarwal 2011: paraesthesia in one participant in the non-locking plate group (resolved by 3 months), none in the locking group; infection rates similar at 6 weeks and 3 months; post-operative swelling in 20% of both…
    1 study
    GRADE not reported