The accuracy of address coding and the effects of coding errors.
Studies that estimate the influence of characteristics of place on health often use geocoded addresses to identify location of study subjects. This study uses housing built before 1990 selected for the 1995-2001 National Health Interview Survey (N=252,421) to develop a standard against which geocodes obtained from an address-coding program are compared. The results show that geocoding is generally accurate and is more successful in urban areas. Blockgroups with missing codes are more rural and somewhat poorer than blockgroups with correct codes. The effect of incorrect codes on statistical analyses depends on the proportion rural in a study population.
Kravets
Nataliya
N
Centers for Disease Control and Prevention, National Center for Health Statistics, Hyattsville, MD 20782, USA. nkravets@cdc.gov
Hadden
Wilbur C
WC
D019352:Censuses; D005568:Forms and Records Control / Q000592:standards*; D040362:Geographic Information Systems / Q000592:standards*; D006801:Humans; D015203:Reproducibility of Results; D012111:Residence Characteristics / Q000145:classification*; D012424:Rural Population / Q000145:classification / Q000706:statistics & numerical data; D014481:United States; D014505:Urban Population / Q000145:classification / Q000706:statistics & numerical data