This announcement solicits applications for the R40 MCH Autism Secondary Data Analysis Studies (SDAS) Program. The R40 MCH Autism SDAS Program supports secondary data analysis research focused on generating new evidence to address the needs of underserved populations for whom there is limited evidence of the effectiveness of interventions, or for whom disparities in and limited access to screening, diagnosis, and treatment for autism spectrum disorder (ASD) and other developmental disabilities exist, including investigations that address geographic barriers to care in underserved communities, including rural and Tribal communities.Ă‚Â Consistent with HRSAĂ‚Âżs mission as the primary Federal agency for improving access to health care services to underserved populations and improving health equity, applicants are encouraged to propose research studies that address the unique needs of underserved populations, by considering ethnic/racial, cultural, linguistic, socioeconomic, literacy and geographic (e.g., rural/urban, tribal) diversity of individuals for whom there is limited evidence of the effectiveness of interventions or for whom disparities in identification of ASD exist with limited understanding of the reasons for these disparities and evidence-based ways to close these gaps.Ă‚Â Proposals that address the unique barriers to identification/screening, diagnosis, and receipt of early interventions for underserved populationsare encouraged.Ă‚Â Given existing investments, studies in the areas of autism prevalence, factors associated with prevalence, or autism and the medical home will not be considered for funding under this R40 MCH Autism SDAS competition. Ă‚Â Innovative secondary use of existing data from national datasets, administrative records and other publicly available datasets from a variety of sources (e.g., National Database for Autism Research (NDAR), Medicaid, Mental Health Research Network) is encouraged.Ă‚Â Innovative methods such as meta-analysis are also encouraged. The R40 MCH Autism SDAS Program is a unique Federal investment in that it supports the utilization of publicly available datasets to generate new knowledge to address disparities in intervention effectiveness and in access to screening, diagnosis, and treatment for ASD.Ă‚Â The Program will address the disparate needs of underserved populations with expected broad impact.