Figure 4

Change of PANSS-D score. Linear mixed effects model curves. Linear slopes for the randomization groups generated based on linear mixed effects models, PANSS-D score output, as displayed in Table 1 for olanzapine, quetiapine, risperidone and ziprasidone, respectively. The curves are confined to the first 300 days because the major bulk of data is obtained before 300 days. PANSS = The Positive and Negative Syndrome Scale; PANSS-D = PANSS Depression Factor = sum score of items G1-G3 and G6 in the general psychopathology subscale of the PANSS.