Figure 24From: Systematic review with meta-analysis of the epidemiological evidence in the 1900s relating smoking to lung cancer Funnel plot for ever smoking and all lung cancer. Funnel plot of the 328 relative risk estimates for ever smoking and all lung cancer included in the main meta-analysis in Table 5 against their weight (inverse-variance of log RR). The dotted vertical line indicates the fixed-effect meta-analysis estimate.Back to article page