Smoothed standardized mortality ratios for Lisbon and London and the credibility of their difference from 1. Figure 1 shows mortality maps for avoidable mortality in the Lisbon Metropolitan Area and in London for men and women separately. The sSMR ratios in Lisbon vary from 55.8 (dark green) to 165.2 (dark brown) for men and from 43.7 (dark green) to 203.7 (dark brown) for women. The corresponding intervals for London are from 68.0 (dark green) to 141.9 (dark brown) for men and from 59.9 (dark green) to 166.5 (dark brown) for women. The colours represent smoothed Standardized Mortality Ratios (sSMR) with respect to the EU. This means, for example, that the lowest mortality level for men in Lisbon (dark green) is between 55.8 and 80.1 percent of the EU-average. Next to each mortality map showing the level of mortality for each small area, there is a map with the probability that the shown sSMRs are above 1. This is the credibility level and represents the Bayesian correspondent to confidence intervals. On this credibility map, red colour indicates a probability of 90-100% that an sSMR is higher than 1 and green colour indicates with the same probability that it is lower than 1.