Per protocol analysis
During the 6-month trial the mean cumulative dose of antipsychotics (olanzapine equivalent mg) was 858.2 (SD = 512.1; range 4–2105) in the medication group and 314.5 (SD = 490.0; range 0–1773) in the placebo group, a significant difference (To test the reliability of the intention-to-treat findings, a per protocol analysis was conducted including only trial completers (placebo 