Clustering in space using case locations
Use Cuzick & Edward's method if you have locations
of both cases and controls. Controls are selected from the same risk
population as the cases. For example, if the cases are places of residence
of children with leukemia, the controls might be places of residence of
healthy children from the same area as the cases. Cuzick & Edward's method
accounts for geographicaly inhomogenous populations.
Geographic clustering using only case locations assumes a homogeneous
population density, and is not appropriate for health data where the size of
the population at risk varies from one place to another.
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Long. Comments appreciated.
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