https://www.austinpublishinggroup.com/statistics/
Afundamental problem in spatial epidemiology is the understanding of the
relationship between risks experienced by humans or animals. A widely used
method to address such a problem is to consider a case-control study for a
certain risk. In this research, we focus on problems of case-control studies
for spatial point processes. In a case-control spatial point process model,
data often consist of locations in a specific geographical region which can be
classified into two categories: observations from the case process and
observations from the control process.
Typically,each observation in the case process presents a positive result to a certain medical
test while each observation in the control process presents a negative one. A
common task in the analysis of the case-control spatial point patterns is to
compare their spatial distributions. For instance, in our data example of
Section 5, we are interested in the comparison between the spatial
distributions of dead birds on whether or not they were infected by West
Nile virus. The main interest is to discover whether the spatial
distribution of the case process (i.e. positive incidences) and the spatial
distribution of the control process (i.e. negative incidences) are the same.
The results of the analysis can provide potentially useful information on how
the behavior of birds is affected by the infection of the West Nile virus.
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