Distribution of the PANSS autism severity score (PAUSS) in the schizophrenia, ASD and disease-control samples. (A) Relative frequency distributions of the PAUSS bins in the schizophrenic GRAS sample by gender are shown. The first and last percentile of the distribution (‘autistic schizophrenics’ and ‘non-autistic schizophrenics’) is contrasted with respect to sociodemographic and clinical characteristics in Table 4. (B) Comparison of the relative frequency distribution of the PAUSS in the GRAS sample and the validation sample (split into ASD sample and disease-control sample). Inset figures show means ± SD. All p-values were obtained from Mann-Whitney U-tests.