Table 5

Cluster and clustering in residuals
Smallest Munici-pality Census consolidated subdivision Agri-culture CLSC Census division Water-shed
(n=1119) (n=1063) (n=903) (n=319) (n=155) (n=97) (n=71)
Cluster (scan test)
Principal cluster
Meana inside 79.97 74.57 77.99 None 10.37 12.35 None
Meana outside −0.22 −0.14 −0.091 −2.49 −2.6
Number of units 3 3 2 29 17
Area (km2) 219 219 203 42993 40052
Locationc A A A B B
P-value <0.01 <0.01 0.04 <0.01 0.02
Clustering
Moran’s
Neighbors (km)b 27 29 19 30 18 15 34
Estimate −0.06 −0.02 −0.11 −0.06 −0.02 0.09 0.02
P-value 0.99 0.98 0.99 0.90 0.63 0.34 0.42

Regression coefficients (standard errors) of conditional autoregressive models predicting the annual incidence of campylobacteriosis per 100,000 people in Quebec, Canada, 1996–2006.

a Mean of residuals.

b Pairs of units with population centers within this distance were considered neighbors.

c A similar letter indicates a similar location for the cluster. See Figure 1 for an indication of the exact cluster location.

Arsenault et al.

Arsenault et al. BMC Infectious Diseases 2012 12:318   doi:10.1186/1471-2334-12-318

Open Data