This monograph provides a compilation of 1985-1993 statistical data on children and youth with disabilities. Data sources included: (1) national surveys that collect economic and social information; (2) national surveys on health status; (3) health surveillance reports; and (4) program and administrative data from federal programs serving individuals with disabilities. An introduction provides a general overview of concepts and issues in the definition, measurement, collection, and interpretation of data. It highlights major findings pertaining to: the general prevalence of disabilities and chronic conditions in children and youth; health status and health care utilization; children in residential placements and in various educational settings; youth with disabilities in school-to-work transition programs; disabled children and youth receiving various federal benefits; and state-level data on children and youth with disabilities. The extensive tables that follow provide detailed information on prevalence of disability, health care utilization, education, school-to-work transition, federal program data, and state level data. Each table is accompanied by highlights and explanatory notes. The final section consists of an inventory of data sources and includes information on technical aspects of the surveys. (Contains 67 references.) (DB)