Title | Accuracy and repeatability of commercial geocoding. |
Publication Type | Journal Article |
Year of Publication | 2004 |
Authors | Whitsel EA, Rose KM, Wood JL, Henley AC, Liao D, Heiss G |
Journal | Am J Epidemiol |
Volume | 160 |
Issue | 10 |
Pagination | 1023-9 |
Date Published | 2004 Nov 15 |
ISSN | 0002-9262 |
Keywords | Aged, Air Pollutants, Cardiovascular Diseases, Environmental Monitoring, Epidemiological Monitoring, Geographic Information Systems, Humans, Middle Aged, Reproducibility of Results, Social Class, United States, United States Environmental Protection Agency |
Abstract | 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 (theta;, in degrees) between coordinates assigned on each occasion (H(o):Sigma(i)( = 1 -->) (n) [theta;(i) /n] = 180 degrees ). 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 |
DOI | 10.1093/aje/kwh310 |
Alternate Journal | Am J Epidemiol |
PubMed ID | 15522859 |
Grant List | 5-T32-HL07055 / HL / NHLBI NIH HHS / United States R01-HL64142-03 / HL / NHLBI NIH HHS / United States |