Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,811 questions · 70,850 findings · 5,139 reviews

No studies found 15,174 · 21.4%GRADE not reported 6,479 · 9.1%Very low 17,330 · 24.5%Low 17,814 · 25.1%Moderate 11,056 · 15.6%High 2,997 · 4.2%

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Methylphenidate vs placebo or no intervention

Proportion of participants with one or more serious adverse events · Children and adolescents with ADHD

It is very uncertain whether methylphenidate changes proportion of participants with one or more serious adverse events compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Methylphenidate vs placebo or no intervention

Adverse events considered non‐serious (penicillin versus doxycycline) · Children and adolescents with ADHD

It is very uncertain whether methylphenidate changes proportion of participants with one or more adverse events… compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Methylphenidate vs placebo or no intervention

General behaviour: all parallel‐group trials and first‐period cross‐over trials General behaviour rating scales (Teacher‐rated) · Children and adolescents with ADHD

It is very uncertain whether methylphenidate changes general behaviour: all parallel‐group trials and first‐period… compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Videolaryngoscopy vs direct laryngoscopy

Non‐airway‐related adverse effects: desaturation or bradycardia episodes, or both · neonates (0 to 28 days of age) who needed tracheal intubation

It is very uncertain whether videolaryngoscopy changes non‐airway‐related adverse effects: desaturation or bradycardia… compared with conventional direct laryngoscopy (very low certainty).

1 finding from 1 review

Videolaryngoscopy vs direct laryngoscopy

Airway‐related adverse effects: airway trauma · neonates (0 to 28 days of age) who needed tracheal intubation

Videolaryngoscopy probably leads to lower airway‐related adverse effects: airway trauma compared with conventional direct laryngoscopy (moderate certainty).

1 finding from 1 review