Prevalence of intellectual disability among adults born in the 1980s and 1990s in the United States.

This study provides researchers examining adult health outcomes with an estimated denominator of young and middle-aged adults living with ID in the United States. Policymakers can use this information to support justification for resource and service needs, and clinicians may benefit from understanding that ID is a lifelong developmental condition often with additional physical, emotional and developmental needs requiring tailored care.