DNMT3B and lung cancer: Moreover, subjects with lower miR-29b expression and higher DNMT3B mRNA expression, those with higher miR-29b expression and higher DNMT3B mRNA expression, and those with lower miR-29b expression and lower DNMT3B mRNA expression were combined to increase the statistical power; these subjects also had significant risk of lung cancer (OR 1.95, 95% CI 1.23–3.10).