Interestingly, another of our top 20 CpG sites (cg26822318) falls in proximity to the FER1L6 gene, of which a variant (rs4870888) has been associated with suicide attempts in a meta-analysis of major depressive disorder, schizophrenia and BD (Mullins et al. 2019). This evidence concerns the gene FER1L6 and Behcet disease.