TY - CHAP M1 - Book, Section TI - Chapter 185. Genetic Evaluation of Developmental Delay/Mental Retardation A1 - Battaglia, Agatino A1 - Carey, John C. A2 - Rudolph, Colin D. A2 - Rudolph, Abraham M. A2 - Lister, George E. A2 - First, Lewis R. A2 - Gershon, Anne A. PY - 2011 T2 - Rudolph's Pediatrics, 22e AB - Medically, mental retardation (MR) or “intellectual disability” (ID, the currently preferred term) is a highly variable, heterogeneous manifestation of central nervous system dysfunction. According to the Diagnostic and Statistical Manual, 4th edition (DSM-IV) (1994), the diagnostic criteria are (1) onset before age 18; (2) an IQ of approximately 70 or below; and (3) concurrent deficits or impairments in two or more of the following areas: communication, self-care, home living, social and interpersonal skills, use of community resources, self-direction, functional academics, health and safety, and work and leisure. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/19 UR - accesspediatrics.mhmedical.com/content.aspx?aid=7018118 ER -