Table 1.

EPR data extraction and integration results for the three open Translator Exposures APIs.

General Statistics	Comments
4130 total participants	all participants had a self-reported diagnosis of asthma
2550 participants with geocodes	5 participants had a foreign address; one participant resided in Alaska/Hawaii; 1576 participants were not geocoded due to home addresses that were listed as P.O. boxes or routes, or addresses that were outdated, incomplete, or missing
2550 participants with complete airborne pollutant exposures data	extraction included the number of observations per airborne pollutant per participant
2550 participants with complete roadway data	954 participants (37.4%) had a primary residence located 500 m or greater from a major roadway (i.e., the maximum distance reported by the API)
2550 participants with complete ACS data	extraction included standard error estimates for each socio-environmental exposure, as those are available via the API as standard ACS metrics
2550 participants with integrated exposures and survey data	integration was at the participant level

Note: ACS = American Community Survey; EPR = Environmental Polymorphisms Registry.