Fig. 3

a Scatterplot of the age of onset and XCI skewing observed in schizophrenia patients (r = 0.3, p = 0.002* by Spearman’s correlation, simple linear regression, y = 0.00377*x + 0.5911, logistic regression p = 0.009 OR = 1.0 95% CI, 1.01-1.10). b, c We analyzed the age of onset in the child and adult groups divided by severe XCI (SXCI ≥ 80:20) vs random XCI (SXCI < 80:20): child p = 0.02, adult p = 0.014*, p < 0.0167* by unpaired-sample t test