Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

321 questions · 347 findings · 123 reviews

No studies found 67 · 19.3%GRADE not reported 64 · 18.4%Very low 87 · 25.1%Low 60 · 17.3%Moderate 51 · 14.7%High 18 · 5.2%

Anti‐vascular endothelial growth factor therapy combined with laser/cryotherapy vs conventional laser/cryotherapy

Local adverse effects ‐ perioperative retinal haemorrhages (unit of analysis: eyes) · preterm infants with type 1 ROP

It is very uncertain whether anti‐vascular endothelial growth factor therapy combined with… changes local adverse effects ‐ perioperative retinal haemorrhages (unit of… compared with laser/cryotherapy (very low certainty).

1 finding from 1 review

NIDOTHERAPY‐ENHANCED STANDARD CARE vs usual care

Adverse effect: Specific ‐ Death · schizophrenia

It is very uncertain whether NIDOTHERAPY‐ENHANCED STANDARD CARE changes adverse effects ‐ specific ‐ death Number of individual deaths of… compared with STANDARD CARE (very low certainty).

1 finding from 1 review

Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)

Adverse effects (e.g. thermal sensitivity, over-eruption, TMJ symptoms, poor aesthetics, reduced oral hygiene) · Adults with chronic periodontitis

The review found no eligible studies for this question.

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

Systemic antibiotic prophylaxis (any regimen; topical therapy excluded) administered before and/or after tooth extraction vs placebo

Adverse effects · People undergoing tooth extraction (21 of 23 trials: healthy patients undergoing impacted third molar extraction; 1 routine intra-alveolar…

It is very uncertain whether systemic antibiotic prophylaxis (any regimen; topical therapy… changes adverse effects compared with placebo (very low 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

Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)

Adverse effects (e.g. thermal sensitivity, over-eruption, TMJ symptoms, poor aesthetics, reduced oral hygiene) · Adults with chronic periodontitis

The review found no eligible studies for this question.

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus verapamil versus verapamil ‐ total ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus verapamil versus verapamil ‐ purpura ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus verapamil versus verapamil ‐ regrowth ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects: CO2 laser plus TAC versus cryosurgery plus TAC ‐ atrophy ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects: CO2 laser plus TAC… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ CO2 laser plus TAC versus cryosurgery plus TAC ‐ erythema ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ CO2 laser plus TAC… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus verapamil versus verapamil ‐ depigmentation ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus verapamil versus verapamil ‐ hyperpigmentation ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ CO2 laser plus TAC versus cryosurgery plus TAC ‐ telangiectasia ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ CO2 laser plus TAC… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ CO2 laser plus TAC versus cryosurgery plus TAC ‐ hypopigmentation ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ CO2 laser plus TAC… compared with other treatment (very low certainty).

1 finding from 1 review

Laser therapy plus other treatment vs other treatment

Incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus verapamil versus verapamil ‐ pain related to treatment ‐ keloid scars ‐ · participants with hypertrophic and keloid scars

It is very uncertain whether laser therapy plus other treatment changes incidence of treatment‐related adverse effects ‐ 595‐nm PDL plus… compared with other treatment (very low certainty).

1 finding from 1 review