Figure 3

Bladder cancer results. Odds ratios are relative to the whole study area. a) Adjusted, no latency. b) Adjusted, 15 years of latency. Assuming 15 years of latency increases the magnitude of hot and cold spots. Black contour lines denote areas of significantly increased and decreased risk at the 0.05 level. c) Crude, 15 years of latency, created using the optimal span (0.30) of the adjusted map. Little difference from the adjusted map suggests spatial confounding is not an issue. d) Adjusted, 15 years of latency. Restriction to residences of longest duration has little effect when the same span (0.30) is used as for all residences.