Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Symptom severity
Systematic review	703 people 4 RCTs in this analysis	Hedges' adjusted g effect size for positive symptoms (Positive and Negative Symptom Scale [PANSS]) with amisulpride with first-generation antipsychotic drugs Absolute results not reported	Hedges' adjusted g effect size –0.22 95% CI –0.37 to –0.06	Effect size not calculated	amisulpride
Systematic review	929 people 10 RCTs in this analysis	Hedges' adjusted g effect size for negative symptoms (PANSS) with amisulpride with first-generation antipsychotic drugs Absolute results not reported	Hedges' adjusted g effect size for negative symptoms –0.27 95% CI –0.40 to –0.14	Effect size not calculated	amisulpride