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Published on: March 14, 2018
Screening for autism spectrum disorders in primary care settings
1Department of Psychology, Georgia State University, Atlanta, GA 30302-5010, USA. drobins@gsu.edu
Autism : the International Journal of Research and Practice
|September 23, 2008
Summary
The Modified Checklist for Autism in Toddlers (M-CHAT) effectively screens for autism spectrum disorders (ASDs) in primary care. Early identification using M-CHAT and follow-up interviews aids in diagnosing ASD in toddlers.
Area of Science:
- Pediatric Medicine
- Developmental Psychology
- Clinical Research
Background:
- Established need for autism-specific screening in pediatric well-child visits.
- Requirement for validated screening instruments in primary care settings.
- Autism Spectrum Disorders (ASDs) diagnosis relies on early identification.
Purpose of the Study:
- Evaluate the effectiveness of the Modified Checklist for Autism in Toddlers (M-CHAT) and its follow-up interview.
- Assess the positive predictive value (PPV) of M-CHAT in identifying toddlers at risk for ASD.
- Determine the utility of M-CHAT in real-world primary care settings.
Main Methods:
- Screened 4797 children using M-CHAT during toddler checkups.
- Administered M-CHAT Follow-Up Interview to children screening positive.
- Evaluated diagnostic outcomes for children showing continued risk for ASD.
Main Results:
- 466 children screened positive on M-CHAT; 61 showed continued risk after follow-up.
- 21 out of 41 evaluated children were diagnosed with ASD.
- The PPV of M-CHAT plus interview was 0.57; pediatricians identified only 4 of 21 ASD cases.
Conclusions:
- M-CHAT is an effective tool for identifying ASD in primary care.
- M-CHAT and follow-up interview enhance early ASD detection.
- Further longitudinal research is planned for the studied cohort.
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