Public health and policy planning for adults with intellectual and developmental disabilities (IDD) is imperiled by the lack of ongoing national surveillance data on prevalence and health status. In 2018, the Administration on Intellectual and Developmental Disabilities appointed a workgroup of representatives from key federal agencies and national experts to recommend strategies to improve prevalence estimates and health surveillance for people with IDD. This article presents the workgroup findings on the availability of prevalence and health surveillance data for adults with IDD and suggested items that could identify respondents with IDD on national surveys with special attention to modifications in the National Health Interview Survey. We identify core constructs that must be measured to identify sample members with IDD in population surveys, and additional constructs which, if measured, would support more comprehensive identification of sample members and enhance ongoing surveillance of the health status, outcomes, and unmet needs of this population. We conclude with a brief review of methodological considerations to improve IDD national surveillance including cultural and linguistic sensitivity and the inclusion of U.S. territories in national surveillance protocols.

Racial and ethnic health disparities are a pervasive public health problem. Emerging research finds similar health disparities among people with intellectual and developmental disabilities (IDD) compared to nondisabled adults. However, few studies have examined racial and ethnic health disparities among adults with IDD. Using national data, we examined racial and ethnic disparities in health status among adults with IDD, and investigated differences in health status between adults with IDD and nondisabled adults within each racial and ethnic group. We found that Latino and Black adults with IDD had worse health outcomes compared to White adults with IDD, and Latino and Black adults with IDD had worse health outcomes than nondisabled adults from the same racial and ethnic group.