Figure 1From: Inflammatory cytokines mediating the effect of oral lichen planus on oral cavity cancer risk: a univariable and multivariable mendelian randomization studyOverview of MR and its assumptions.Notes: There are three key assumptions for the MR study. Assumption 1: the genetic variants (GVs) selected as instrumental variables (IVs) should be robustly associated with the exposure; Assumption 2: the used IVs should not be associated with any potential confounder; Assumption 3: the GVs should influence the outcome risk merely through the exposures, not via any alternative pathway. Abbreviations: GVs = genetic variants; IV = instrumental variable; IVW = inverse variance weighted; MR = Mendelian randomization; MVMR = multivariable Mendelian randomization; SNP = single-nucleotide polymorphism; UVMR = univariable Mendelian randomization; WM = weighted median.Back to article page