Abstract TMP72: Geographic, Demographic and Socioeconomic Analysis of StrokeNet Research Network Population Coverage

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Introduction: StrokeNet is an NIH research network to advance research for acute treatment, prevention, and recovery/rehabilitation following stroke.

Hypothesis/Objective: We characterized the adult population with geographic access to a StrokeNet acute care research site and its representativeness of the overall US population.

Methods: Data on research sites was obtained from the StrokeNet National Coordinating Center and geocoded. Ground and air-ambulance data identify transport times of 60, 90 and 120 minutes, corresponding to transport distances of 20, 40 and 65 miles, respectively. Geographic Information System (GIS) software overlaid these radii on thematic maps of StrokeNet adult acute care hospitals, their referral clinics, and participating VAMC hospitals. The analysis used complete 2010 US census data and 2013 data for economic variables, coded to the block group level. Descriptive data presented with comparison to national averages.

Results: 281 sites were identified as of August 1, 2015. 38%, 50%, and 60% of the total US population were within 20, 40 and 65 miles of an identified site. Geographic coverage and analysis for gender, race, age, and income are presented below. High rates of access were identified for Hispanic/Latino, Black, and Asian populations and households with high median incomes. Limited rural access was identified. Data on rehabilitation and pediatric access to be presented.

Conclusions: Current StrokeNet sites provide geographic access to acute care research opportunities for a substantial portion of the US population. The encompassed population reflects the demographic and socioeconomic makeup of the nation as a whole.

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