Fig. 3From: Serum iron status and the risk of breast cancer in the European population: a two-sample Mendelian randomisation studyMR estimates the association of genetically predicted iron status and the risk of breast cancer. The results showed ORs for breast cancer and their subtype per SD increase in every iron status biomarker. a–d for iron, transferrin, ferritin, and transferrin saturation. MR, Mendelian randomization; MR-Egger, Mendelian randomization–Egger regression method; OR: odds ratio; 95% CI, 95% confidence interval; ER, oestrogen receptorBack to article page