Fig. 2

Meta-analyses. Linear regression with fixed effects for log RR with weights proportional to the inverse of the respective variance (the box size illustrates the precision of the meta-estimate). Coefficients (effect size, ES) of the cumulative exposure (Dose) to DEE in mg/m³-years with a 95 % confidence interval of the coefficient, calculated using the standard normal distribution. Steenland et al. [2] and Silverman et al. [4] were evaluated as used by Vermeulen et al. [1], as well as in accordance with the re-analysis by Crump et al. [14] with adjustment for the radon exposure (REC4, REC6, cf. Table 3), as was Garshick et al. [3] as used by Vermeulen et al. [1], and Garshick et al. [3] (modified) and the data based on Möhner et al. [17] (adapted)