Within-individual change in psychotic symptom severity.

Each individual who was assessed using the Positive and Negative Syndrome Scale (n = 330) is represented by a line. Higher scores reflect greater symptom severity. Boxplots depict distribution of ratings at their respective time points. The median rating on the positive scale was 25 (interquartile range: 21 to 29) at admission and 18 (interquartile range: 15 to 22) at discharge. The median rating on the negative scale was 25 (interquartile range: 21 to 29) at admission and 22 (interquartile range: 18 to 25) at discharge. The median rating on the general psychopathology scale was 47 (interquartile range: 41 to 53) at admission and 40 (interquartile range: 34 to 46) at discharge. The median rating across all scales was 98 (interquartile range: 85 to 110) at admission and 80 (interquartile range: 68 to 91) at discharge.