PAK1 and schizoaffective disorder: There was no difference in PAK1 levels between subject pairs when separated by sex (t23 = −1.15, p = 0.26), diagnosis of schizoaffective disorder (t23 = −0.66, p  = 0.52), death by suicide (t22.9 = 0.56, p = 0.58), history of substance use disorder (t23 = 0.49, p = 0.63), or antipsychotic use at time of death (t22.8 = 1.02, p = 0.32).