This Research Archive on Disability in the United States (RADIUS), a database on CD-ROM, contains 19 data sets on the prevalence, incidence, correlates, and consequences of disability in the United States. The 19 data sets are: (1) 1991 National Maternal and Infant Health Follow-Up Survey; (2) National Pediatric Trauma Registry, 1988-1994; (3) 1986 International Center for the Disabled Survey: Employing Disabled Americans; (4) 1986 Survey of Disabled Americans: Bringing Disabled Americans into the Mainstream; (5) 1994 National Organization on Disability (NOD) Survey of Americans with Disabilities; (6) 1991 NOD Survey of Public Attitudes toward People with Disabilities; (7) National Longitudinal Transition Study of Special Education Students, 1987-1991; (8) 1994 National Survey of Sexuality Issues among Women with Physical Disabilities; (9) School-to-Work Transition Survey of Deaf Youth 1986-1992; (10) Annual Survey of Deaf and Hard-of-Hearing Children and Youth, 1975-1994; (11) The Next Generation of Upper-Limb Prostheses, 1992-1994; (12) 1988 National Maternal and Infant Health Survey; (13) Survey of Income and Program Participation, Core and Disability Modules, 1992-1993; (14) Rehabilitation Services Administration-Social Security Administration Data Link 1980-1988; (15) 1991 Study of Outpatient Physical Therapy Practices; (16) Medical Outcomes Study, 1986-1992; (17) 1994-1995 National Health Interview Survey on Disability, Complete Phase I; (18) 1994-1995 National Health Interview Survey on Disability, Complete Phase II; and (19) 1998 NOD/Harris Survey of Americans with Disabilities. The comprehensive RADIUS archive, 1999 edition can be ordered on a set of 6 CD-ROMs which includes complete data, instruments, documentation, and search & retrieval/extract software for all 19 studies as well as printed User's Guides for each study and a comprehensive User's Manual. (DB)