Reducing Barriers to Autism Screening in Community Primary Care: A Pragmatic Trial using Web-Based Screening.

Abstract Objective To determine whether an intervention addressing both logistical and knowledge barriers to early screening for autism spectrum disorder (ASD) increases evidence-based screening during 18-month well-child visits and PCPs’ perceived self-efficacy in caring for children with ASD. Methods Forty-six primary care providers (PCPs) from 10 diverse practices across four counties in Washington State participated. PCPs attended a two-hour training workshop on early recognition and care for toddlers with ASD and use of a REDCap-based version of the Modified Checklist for Autism in Toddlers–Revised with Follow-up (webM-CHAT-R/F) that provided automated presentation and scoring of follow-up questions. Data were collected at baseline and six-months following each county's training window. PCPs’ screening methods and rates and perceived self-efficacy regarding ASD care were measured by self-report and webM-CHAT-R/F use was measured via REDCap records. Results At follow-up, 8 of the 10 practices were using the webM-CHAT-R/F routinely at 18-month visits. The proportion of PCPs reporting routine M-CHAT screening increased from 82% at baseline to 98% at follow-up (16% increase, 95% CI 3%–28%; McNemar exact p=.02). The proportion using the M-CHAT-R/F follow-up interview questions increased from 33% to 82% (49% increase, 95% CI 30%–68%, exact McNemar test, p Conclusions This brief intervention increased PCPs’ self-reported valid use of the M-CHAT-R/F at 18 months and their self-efficacy regarding ASD care. Combining educational information with a web-based ASD screen incorporating the M-CHAT-R/F follow-up questions may increase universal ASD screening with improved fidelity.