Study	Reason for exclusion
An 2003	Allocation: randomised. Blindness: open-label.
Antonova 2005	Allocation: randomised. Blindness: single-blind (rater-blind). Participants: people with schizophrenia. Interventions: olanzapine, risperidone and quetiapine versus conventional antipsychotics. Outcomes: no usable data.
Ascher-Svanum 2006	Allocation: not randomised, cohort study.
Baloescu 2006	Allocation: not randomised, controlled clinical trial.
Beuzen 2005	Allocation: randomised Blindness: open-label.
Byerly 1999	Allocation: not reported. Blindness: not reported. Participants: people with schizophrenia. Interventions: clozapine versus quetiapine. Outcomes: no usable data.
Byerly 2006	Allocation: randomised. Blindness: double-blind. Participants: people with schizophrenia. Interventions: quetiapine versus risperidone. Outcomes: no usable data.
Canas 2006	Allocation: not randomised, controlled clinical trial.
Cao 2005	Allocation: randomised. Blindness: open-label.
Cao 2005a	Allocation: randomised. Blindness: open-label.
Chaudhry 2006	Allocation: randomised. Blindness: open-label.
Dai 2004	Allocation: randomised. Blindness: open-label.
Dai 2005	Allocation: randomised. Blindness: open-label.
Ding 2004	Allocation: randomised. Blindness: open-label.
Dossenbach 2005	Allocation: not randomised, cohort study.
Du 2003	Allocation: randomised. Blindness: open-label.
Emsley 2005	Allocation: randomised. Blindness: investigator-blind. Participants: people with schizophrenia. Interventions: inappropriate intervention.
Fan 2005	Allocation: randomised. Blindness: open-label.
Fleischhacker 2005	Allocation: randomised. Blindness: open-label.
Fu 2005	Allocation: randomised. Blindness: open-label.
Gao 2003	Allocation: randomised. Blindness: open-label.
Garcia 2006	Allocation: not randomised, case series.
Harrigan 2004	Allocation: randomised. Blindness: open-label.
He 2003	Allocation: randomised. Blindness: open-label.
Huang 2003	Allocation: randomised. Blindness: open-label.
Huber 2004	Allocation: unclear. Blindness: unclear. Intervention: other aims.
Karow 2002	Allocation: not randomised, review.
Keks 2006	Allocation: randomised. Blindness: open-label.
Kelemen 2006	Allocation: not randomised, controlled clinical trial.
Kim 2004	Allocation: not randomised, controlled clinical trial.
Knegtering 2004	Allocation: randomised. Blindness: open-label.
Li 2001	Allocation: randomised. Blindness: open-label.
Li 2002a	Allocation: not randomised.
Li 2003a	Allocation: randomised. Blindness: open-label.
Li 2003b	Allocation: randomised. Blindness: open-label.
Li 2005	Allocation: randomised. Blindness: open-label.
Liu 2004a	Allocation: randomised. Blindness: open-label.
Liu 2005	Allocation: randomised. Blindness: open-label.
Lu 2005	Allocation: randomised. Blindness: open-label.
Luo 2005	Allocation: randomised. Blindness: open-label.
Mintzer 2004	Allocation: randomised. Blindness: open-label.
Mullen 2001	Allocation: randomised. Blindness: open-label
Musil 2006	Allocation: not randomised, cohort study.
Pan 2004	Allocation: randomised. Blindness: open-label.
Pan 2004a	Allocation: randomised. Blindness: open-label.
Pan 2004b	Allocation: randomised. Blindness: open-label.
Pang 2002	Allocation: randomised. Blindness: open-label.
Peng 2004	Allocation: randomised. Blindness: not mentioned. Participants: people with schizophrenia. Interventions: inappropriate intervention.
Qi 2004	Allocation: randomised. Blindness: open-label.
Qian 2004	Allocation: randomised. Blindness: open-label.
Reznik 2004	Allocation: randomised. Blindness: open-label.
Ryu 2006	Allocation: not randomised, controlled clinical trial.
Sajatovic 2002	Allocation: randomised. Blindness: open-label.
Swanson 2006	Allocation: randomised. Blindness: open-label.
Tang 2003	Allocation: randomised. Blindness: open-label.
Tang 2005	Allocation: randomised. Blindness: open-label.
Wang 2000	Allocation: randomised. Blindness: open-label.
Wang 2004	Allocation: randomised. Blindness: open-label.
Wang 2004a	Allocation: not randomised.
Wang 2005	Allocation: randomised. Blindness: open-label.
Wang 2005a	Allocation: randomised. Blindness: open-label.
Wang 2005b	Allocation: randomised. Blindness: open-label.
Wang 2005c	Allocation: randomised. Blindness: open-label.
Wang 2005d	Allocation: randomised. Blindness: open-label.
Weickert 2003	Allocation: randomised. Participants: people with schizophrenia. Interventions: inappropriate intervention.
Xiang 2005	Allocation: randomised. Blindness: open-label.
Xu 2002	Allocation: randomised. Blindness: open-label.
Xu 2003	Allocation: randomised. Blindness: open-label.
Xu 2005	Allocation: randomised. Blindness: open-label.
Yamashita 2005	Allocation: not randomised, case series.
Yang 2004	Allocation: randomised. Blindness: open-label.
Yang 2005	Allocation: randomised. Blindness: open-label.
Yu 2003	Allocation: randomised. Blindness: open-label.
Yuan 2005	Allocation: randomised. Blindness: open-label.
Zhang 2003	Allocation: randomised. Blindness: open-label.
Zhang 2005	Allocation: randomised. Blindness: open-label.
Zhang 2005a	Allocation: randomised. Blindness: open-label.
Zhang 2005b	Allocation: randomised. Blindness: open-label.
Zhang 2005c	Allocation: randomised. Blindness: open-label.
Zhao 2004	Allocation: randomised. Blindness: open-label.
Zhao 2005	Allocation: randomised. Blindness: open-label.
Zhao 2005a	Allocation: randomised. Blindness: open-label.
Zhong 2006a	Allocation: randomised. Blindness: open-label.
Zhou 2003	Allocation: randomised. Blindness: open-label.
Zhou 2003a	Allocation: randomised. Blindness: open-label.