Cohort effects explain the increase in autism diagnosis among children born from 1992 to 2003 in California

Keyes, Katherine M.; Susser, Ezra S.; Cheslack-Postava, Keely; Fountain, Christine; Liu, Kayuet; Bearman, Peter Shawn

The incidence and prevalence of autism have dramatically increased over the last 20 years. Decomposition of autism incidence rates into age, period and cohort effects disentangle underlying domains of causal factors linked to time trends. We estimate an age-period-cohort effect model for autism diagnostic incidence overall and by level of functioning.

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International Journal of Epidemiology

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