Developing a surveillance system of sub-county data: Finding suitable population thresholds for geographic aggregations.

Autor: Werner AK; Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States; ORISE Postdoctoral Fellow at the Environmental Public Health Tracking Section, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States. Electronic address: awerner@cdc.gov., Strosnider HM; Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States. Electronic address: hstrosnider@cdc.gov.
Jazyk: angličtina
Zdroj: Spatial and spatio-temporal epidemiology [Spat Spatiotemporal Epidemiol] 2020 Jun; Vol. 33, pp. 100339. Date of Electronic Publication: 2020 Mar 06.
DOI: 10.1016/j.sste.2020.100339
Abstrakt: The Centers for Disease Control and Prevention's National Environmental Public Health Tracking Program created standardized sub-county geographies that are comparable over time, place, and outcomes. Expected census tract-level counts were calculated for asthma emergency department visits and lung cancer. Census tracts were aggregated for various total population and sub-population thresholds, then suppression and stability were examined. A total of 5,000 persons was recommended for the more common outcome scheme and a total of 20,000 persons was recommended for the rare outcome scheme. Health outcomes with a median case count of 17.0 cases or higher should produce stable estimates at the census tract level. This project generated recommendations for three sub-county geographies that will be useful for surveillance purposes: census tract, a more common outcome aggregation scheme, and a rare outcome aggregation scheme. This methodology can be applied anywhere to aggregate geographic units and produce stable rates at a finer resolution.
Competing Interests: Declaration of Competing Interest The authors declare that they have no competing interests.
(Published by Elsevier Ltd.)
Databáze: MEDLINE
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