Figure 4.

Lung cancer and risk factors. (Panel A). Pie charts of tissue mutations for lung cancer patients grouped by their smoking status. (Panel B). The age at lung cancer onset for patients with or without professional exposure to toxic substances (n.s., Student’s t-test), for non-smokers, ex-smokers, and current smokers (* p < 0.05, Current Smokers vs. Never Smoked, one-way ANOVA, Dunnett multiple comparison test), as well as the significant negative correlation between a compound exposure score and age at lung cancer onset (** p < 0.01, Pearson correlation).