Effect of spatial resolution on cluster detection: a simulation study

BACKGROUND: Aggregation of spatial data is intended to protect privacy, but some effects of aggregation on spatial methods have not yet been quantified. METHODS: We generated 3,000 spatial data sets and evaluated power of detection at 12 different levels of aggregation using the spatial scan statist...

Descripción completa

Detalles Bibliográficos
Autores principales: Ozonoff, Al, Jeffery, Caroline, Manjourides, Justin, White, Laura Forsberg, Pagano, Marcello
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2007
Materias:
Methodology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2213641/
https://www.ncbi.nlm.nih.gov/pubmed/18042281
http://dx.doi.org/10.1186/1476-072X-6-52
Descripción
Sumario:BACKGROUND: Aggregation of spatial data is intended to protect privacy, but some effects of aggregation on spatial methods have not yet been quantified. METHODS: We generated 3,000 spatial data sets and evaluated power of detection at 12 different levels of aggregation using the spatial scan statistic implemented in SaTScan v6.0. RESULTS: Power to detect clusters decreased from nearly 100% when using exact locations to roughly 40% at the coarsest level of spatial resolution. CONCLUSION: Aggregation has the potential for obfuscation.

Ejemplares similares