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Purpose: The Joint Committee on Infant Hearing recommends hearing screening before 1 month of age, audiologic diagnosis before 3 months of age, and enrollment in early intervention before 6 months of age (1-3-6 benchmarks of Early Hearing Detection and Intervention [EHDI] programs). Nearly 98% of newborns have their hearing screened, but many, who do not pass or do not complete their newborn hearing screening, fail to complete the EHDI process. Historically, lower socioeconomic level, more complex infant health status, and farther geographical location reduce rates of EHDI follow-up, but levels vary widely across states. This study examined barriers to the EHDI process by comparing census-based variables at the state and regional levels to national and Texas EHDI outcomes, respectively. Method: We used correlational analysis to assess relationships between U.S. Census data (state- and region-specific population and geographic characteristics, sociodemographic and geographic factors, and health and health insurance) and EHDI data (newborn screening, audiologic diagnosis, and early intervention) at the national level and in Texas. Results: Nationally, higher labor force participation, lower unemployment rates, and presence of health insurance significantly correlated with higher rates of completing EHDI benchmarks. Larger population size and density and higher socioeconomic factors coincided with higher rates of completing the EHDI process and lower rates of loss to follow-up (LTF) or loss to documentation in Texas. Conclusions: Population, socioeconomic, and demographic factors significantly correlate with following through with the EHDI process, with weak correlations at the national level and strong correlations at the state level. These findings underscore the need to increase our attention to underserved, economically challenged, and/or geographically distanced families who have children with a higher risk of becoming LTF in the EHDI process. [ABSTRACT FROM AUTHOR]