Fig. 2
From: Low dose radiation risks for women surviving the a-bombs in Japan: generalized additive model
Optimisation methods and Bayesian posterior confidence intervals. For all solid cancers in A- (0 - 20 mGy excluding NIC), the model P4se (see Table 2) is fitted with smoothing parameter optimisation by GCV.Cp, ML, and REML. At 35 years time-since-exposure, Relative Risk is shown by grey curves, and 95% Bayesian posterior confidence intervals (Appendix A) are shown by blue and red curves. Simulation gives estimates of coverage, Bootstrap-t CIs (triangles), and an alternative CI (large circles) stretched to achieve 95% coverage (Appendix B), with stretch factors as shown in the plot key