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Overall prognosis of preschool autism spectrum disorder diagnoses (Protocol)
Amanda Brignell Natalia Albein-Urios Susan Woolfenden Andrew Hayen Alfonso Iorio Katrina Williams
Amanda Brignell
Natalia Albein-Urios
Susan Woolfenden
Andrew Hayen
Alfonso Iorio
Katrina Williams
Abstract
This is a protocol for a Cochrane Review (Prognosis). The objectives are as follows:
The primary objective of this review is to synthesise the available evidence on the proportion of individuals who have a diagnosis of autism spectrum disorder at baseline and at follow‐up one or more years later.
The secondary objectives of this review are to:
1. investigate whether there are differences in the proportions of individuals with autism spectrum disorder who maintain a diagnosis at follow‐up dependent on use of the different classification systems (i.e. DSM or ICD criteria) and their revisions; and
2. investigate the proportion of individuals with autism spectrum disorder who maintain diagnosis at follow‐up in important subgroups of individuals, including those of different ages and those with different language levels (verbal/non‐verbal; standard score ≤ 70 or > 70), IQs (≤ 70 or > 70), adaptive behaviour (standard score ≤ 70 or > 70), and different diagnostic subgroups (Asperger's syndrome/disorder, autistic disorder, childhood autism, PDD‐NOS, atypical autism, PDD and autism spectrum disorder).
We will investigate potential sources of heterogeneity that may impact outcomes such as differences in study participation, study design, length of follow‐up, participant attrition and participant outcome measurement factors. We will use internationally recognised standards for systematic reviews to guide the review.
Keywords
Date
2017
Type
Journal article
Journal
Cochrane Database of Systematic Reviews
Book
Volume
2017
Issue
8
Page Range
1-18
Article Number
ACU Department
School of Allied Health
Faculty of Health Sciences
Faculty of Health Sciences
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Event URL
Open Access Status
License
File Access
Controlled