IKBKB and schizophrenia: In contrast to NF-κB pathway receptors, we found that leukocytes from people with schizophrenia had, on average, 10% less IKKβ mRNA than leukocytes from controls (F(1,151) = 15.34, Cohen’s d = 0.65, p < 0.001, adjusted p < 0.02).