The DMD gene has been demonstrated to be associated with depressive disorder (Clark et al., 2012; Schosser et al., 2013; Blokland et al., 2022), educational attainment (Lee et al., 2018; Okbay et al., 2022), migraine (Hautakangas et al., 2022) and schizophrenia (Trubetskoy et al., 2022). Here, DMD is linked to schizophrenia.