Adverse effects 1 specific: average total score, short‐term (at 8 weeks), various scales (higher score = worse), skewed data
Study	Intervention	Mean	SD	N	Note
Extrapyramidal symptoms: average total change score, Simpson‐Angus scale
PRIME‐USA	Olanzapine + Supportive intervention	1	1.32	30
PRIME‐USA	Placebo + Supportive intervention	0.9	1.39	29
Akathisia: average total change score, Barnes akathisia scale
PRIME‐USA	Olanzapine + Supportive intervention	0.9	2.3	30
PRIME‐USA	Placebo + Supportive intervention	0.4	1.92	29
Abnormal involuntary movements: average total change score, AIMS
PRIME‐USA	Olanzapine + Supportive intervention	0.9	2.4	30
PRIME‐USA	Placebo + Supportive intervention	0.3	1.05	29