Abstract
* Abbreviations: ASD — : autism spectrum disorder ASQ — : Ages and Stages Questionnaire EAS — : Emotionality, Activity, and Sociability Temperament Survey MCHAT — : Modified Checklist for Autism in Toddlers MCHAT-R — : Modified Checklist for Autism in Toddlers-Revised USPSTF — : United States Preventive Services Task Force Although autism spectrum disorder (ASD) can be reliably detected by age 2, the average age of diagnosis ranges from age 4 to 6, depending on the population.1 Because earlier access to treatment is thought to improve outcomes,2 delays in diagnosis may lead to avoidable morbidity. In an effort to lower the average age of diagnosis, considerable efforts are being made to promote early ASD screening.3–5 Two predominant strategies exist: broad-based developmental surveillance and targeted ASD screening.6,7 Although there are data to support each strategy, targeted ASD screening has recently gained popularity. The American Academy of Pediatrics, for example, recommends all children receive an ASD-specific screener at their 18- and 24-month well-child visit, and it proactively supports these guidelines with resources and trainings.3 A number of studies support ASD-specific screeners (the Modified Checklist for Autism in Toddlers [MCHAT] and the Modified Checklist for Autism in Toddlers-Revised [MCHAT-R]) for detecting early ASD … Address correspondence to Sarabeth Broder-Fingert, MD, MPH, Division of General Pediatrics, Boston University School of Medicine, 850 Harrison Ave, Room 310A, Boston, MA 02118. E-mail: sarabeth.broder-fingert{at}bmc.org
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