Résumé :
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[BDSP. Notice produite par INIST-CNRS 0R0x9ncG. Diffusion soumise à autorisation]. The authors estimated accuracy and repeatability of commercial geocoding to guide vendor selection in the Life Course Socioeconomic Status, Social Context and Cardiovascular Disease study (2001-2002). They submitted 1,032 participant addresses (97% in Maryland, Minnesota, Mississippi, or North Carolina) to vendor A twice over 9 months and measured repeatability as agreement between levels of address matching, discordance (%) between statistical tabulation areas, and median distance (d, in meters) and bearing (thêta, in degrees) between coordinates assigned on each occasion (H0 : sigmai=1 - n[thêtai/n]=180°). They also submitted 75 addresses of nearby air pollution monitors (77% urban/suburban ; 69% residential/commercial) to vendors A and B and then measured accuracy by comparing vendor-and US Environmental Protection Agency (EPA) - assigned geocodes using the above measures. Repeatability of geocodes assigned by vendor A was high (kappa=0.90 ; census block group discordance=5% ; d
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