Figure 2
From: Geographical variation of Crohn's disease residual incidence in the Province of Quebec, Canada
Crohn's Disease Residual Incidence (1995 - 2000). Values represents empirical Bayesian smoothed (EBS) incidence residuals from a regression model adjusting for the regional effect of immigration, population of Jewish ethnicity, population of Aboriginal ancestry, incidence of enteric diseases and socio-economic status. Positive values reflect a larger observed incidence than predicted by the model (under-estimation) and negative values reflect a smaller observed incidence than the one predicted by the model (over-estimation). Patches of areas with lower values (i.e. regions A and E), higher values (i.e. regions B and F) and with discordant values (i.e. regions D and C) are illustrated.