Fig. 4
From: Genome-wide analysis of DNA methylation in bronchial washings
Relationship between DNA methylation and duration of smoking cessation. A correlation between methylation levels and duration of smoking cessation was analyzed in NSCLC patients (a) and controls (b). Methylation levels of CpGs on two genes (RUNX3 and MIR196A1) of nine genes associated with pack-years of smoking were inversely associated with duration of smoking cessation in the control group. p values are based on Spearman’s correlation coefficient. The X- and Y-axes indicate duration of smoking cessation and β values, respectively