Validating an administrative data-based case definition for identifying children and youth with autism spectrum disorder for surveillance purposes

To evaluate the sensitivity and positive predictive value (PPV) of administrative health and education data for identifying cases of autism spectrum disorder (ASD) in Manitoba, and to recommend a surveillance case definition.Four service providers abstracted information on children who had been clinically diagnosed with ASD ("sensitivity cohort"). That information was linked to Manitoba's administrative health and education data and records were...