“Undergoing electro-convulsive therapy” was also thought to be more helpful in schizophrenia than depression (P < 0.05; OR: 1.64; CI: [1.06, 2.54]) and GAD (P < 0.01; OR: 1.80; CI: [1.16, 2.81]). This evidence concerns the gene GAD1 and schizophrenia.