Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

119 questions · 127 findings · 15 reviews · Headline outcomes only

No studies found 23 · 18.1%GRADE not reported 8 · 6.3%Very low 28 · 22%Low 57 · 44.9%Moderate 11 · 8.7%High 0 · 0%

Intervention not reported

Proportion with an autism spectrum disorder diagnosis at baseline and · children diagnosed with autism spectrum disorder
1 finding from 1 review

Intervention not reported

Autism symptom severity Measured by: parent‐reported autism symptoms on standardised autism screening and diagnostic instruments (lower scores indicate less severe autism symptoms) · patients with young children (less than six years old) with autism spectrum disorders (ASD)
1 finding from 1 review

Intervention not reported

Symptom Level: Social Interaction Various measures, including: Autism Diagnostic Observation Schedule (ADOS) Communication and Symbolic Behaviour Scale (CSBS) Early Social Communication Scales (ESCS) PDD‐BI social approach subscale Precursors of J... · People with autism spectrum disorder
1 finding from 1 review

Music therapy vs placebo or usual care

Autism symptom severity Measured by: parent‐reported autism symptoms on standardised autism screening and diagnostic instruments (lower scores indicate less severe autism symptoms) · Individuals with autism spectrum disorder
1 finding from 1 review

Intervention not reported

Social communication at baseline and · children diagnosed with autism spectrum disorder

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Restricted and repetitive behaviours and interests at baseline and · children diagnosed with autism spectrum disorder

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Communication and language skills: expressive language Measured by: standardized measures of expressive language (higher scores indicate better expressive language skills) · patients with young children (less than six years old) with autism spectrum disorders (ASD)
1 finding from 1 review

Intervention not reported

Communication and language skills: receptive language Measured by: standardized measures of receptive language (higher scores indicate better receptive language skills) · patients with young children (less than six years old) with autism spectrum disorders (ASD)
1 finding from 1 review