Exploring spatially varying demographic associations with gonorrhea incidence in Baltimore, Maryland, 2002–2005

Jeffrey M. Switchenko, Jacky M. Jennings, Lance A. Waller

Research output: Contribution to journalArticle

Abstract

The ability to establish spatial links between gonorrhea risk and demographic features is an important step in disease awareness and more effective prevention techniques. Past spatial analyses focused on local variations in risk, but not on spatial variations in associations with demographics. We collected data from the Baltimore City Health Department from 2002 to 2005 and evaluated demographic features known to be associated with gonorrhea risk in Baltimore, by allowing spatial variation in associations using Poisson geographically weighted regression (PGWR). The PGWR maps revealed variations in local relationships between race, education, and poverty with gonorrhea risk which were not captured previously. We determined that the PGWR model provided a significantly better fit to the data and yields a more nuanced interpretation of “core areas” of risk. The PGWR model’s quantification of spatial variation in associations between disease risk and demographic features provides local and demographic structure to core areas of higher risk.

Original languageEnglish (US)
Pages (from-to)201-216
Number of pages16
JournalJournal of Geographical Systems
Volume22
Issue number2
DOIs
StatePublished - Apr 1 2020

Keywords

  • Core area
  • Geographically weighted regression
  • Spatial analysis
  • STIs

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Earth-Surface Processes

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