Study	Reason for exclusion
ACTRN12606000	Allocation: randomised Participants: not schizophrenia. Study undertaken with persons who were at ultrahigh risk of transition into psychosis.
Agius 2007	Allocation: an 'open‐label' cohort study
Bach 2002	Allocation: randomised Participants: nonaffective psychotic disorder (schizophrenia or schizoaffective disorder). Interventions: the intervention was not a traditional CBT, but about radical acceptance without cognitive or behavioural modifications.
Barrowclough 2006	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT + treatment‐as‐usual versus treatment‐as‐usual
Bechdolf 2004	Allocation: randomised controlled trial Participants: people with schizophrenia Interventions: CBT versus psychoeducation
Bechdolf 2005b	Allocation: an uncontrolled prospective study
Bradshaw 1996	Allocation: randomised controlled trial Participants: people with schizophrenia Interventions: CBT versus problem‐solving group
Bradshaw 2000	Allocation: randomised Participants: people with schizophrenia Intervention: CBT plus standard care versus standard care Outcome: no usable data, the author did not report the number of participants in each group.
Byerly 2005	Allocation: not randomised
Cai 2014c	Allocation: randomised Participants: people with psychosis (type not stated)
Cather 2005	Allocation: randomised Participants: schizophrenia or schizoaffective disorder, depressed type with residual psychotic symptoms Interventions: CBT versus psychoeducation
Cella 2014	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive remediation plus treatment‐as‐usual versus treatment‐as‐usual
Chen 2012	Allocation: retrospective study
ChiCTR‐TRC‐14004187 2014	Allocation: randomised Participants: schizophrenia, schizoaffective, or delusional disorder according to the criteria of DSM‐V (APA, 2013) Interventions: group CBT versus control intervention (unclear intervention)
Deng 2014	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT plus entertainment therapy versus entertainment therapy
Dong 2015	Allocation: randomised Participants: schizophrenia Interventions: CBT plus risperidone versus risperidone Outcomes: no usable data and the author did not reported the tools used for measurements
Drury 1996	Allocation: randomised Participants: schizophrenia or schizoaffective disorder, depressed type with residual psychotic symptoms Interventions: CBT versus recreation and support
Du 2016	Allocation: randomised Participants: people with schizophrenia Interventions: CBT plus fluoxetine and other conventional medicine versus fluoxetine and other conventional medicine Outcomes: no usable data and the author did not state the duration of treatment
Eack 2014	Allocation: randomised Participants: people with substance misuse and schizophrenia
Farreny 2012	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive remediation (not CBT) versus leisure control
Favrod 2014	Allocation: randomised Participants: people with schizophrenia Interventions: meta‐cognitive training plus treatment‐as‐usual versus treatment‐as‐usual
Feng 2013	Allocation: not randomised
Gaudiano 2006	Allocation: randomised Participants: people with psychotic disorder Interventions: not CBT, active intervention based on Acceptance and Commitment Therapy
Granholm 2007	Allocation: randomised Participants: people with chronic schizophrenia Interventions: combination of CBT and other active therapies (social skills training plus cognitive remediation/rehabilitation)
Haddock 1998	Allocation: randomised Participants: people with schizophrenia or schizoaffective disorder (DSM‐IV) Intervention: CBT versus supportive counselling
Hang 2014	Allocation: quasi‐randomised
Hert 2000	Allocation: randomised Participants: people with schizophrenia Interventions: not CBT, active intervention was a relapse prevention program
Hogarty 1997	Allocation: randomised Participants: people with schizophrenia Interventions: not CBT, active intervention was personal therapy
Hogarty 2004	Allocation: randomised Participants: people with schizophrenia or schizoaffective disorder Interventions: not CBT, active intervention focused upon cognitive neurorehabilitation and retraining
Huang 2014	Allocation: quasi‐randomised
Ibranhim 2012	Allocation: quasi‐randomised
ISRCTN11889976	Allocation: randomised Participants: people with first episode psychosis
ISRCTN34966555	Allocation: randomised Participants: people with psychosis with positive symptoms Interventions: CBT delivered through mobile application (app) versus symptoms monitoring app
ISRCTN47998710	Allocation: randomised Participants: people with psychological difficulties, not schizophrenia
ISRCTN77762753	Allocation: randomised Participants: auditory hallucinations (people who heard distress voices)
Jackson 1998	Allocation: not randomised
Jackson 2008	Allocation: randomised Participants: people with schizophrenia or schizoaffective disorder Interventions: CBT versus Befriending (not treatment‐as‐usual)
Jenner 2004	Allocation: randomised Participants: PenllteDt (> 10 years), drug‐refractory auditory hallucinations
Jiang 2014	Allocation: randomised Participants: people with schizophrenia Interventions: CBT plus standard care plus psychoeducation versus standard care plus psychoeducation Outcomes: No usable data; the reported outcomes were not predefined for this review (Activity of Daily Living score, Fast Blood Glucose, Post prandial glucose after 2 hours, and HbA1c)
Johnson 2008	Allocation: randomised Participants: outpatients with schizophrenia Interventions: group CBT versus group supportive therapy
Kidd 2014	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive remediation plus supported education versus supported education
Klingberg 2009	Allocation: randomised Participants: people with schizophrenia Interventions: CBT versus cognitive remediation
Kong 2015	Allocation: quasi‐randomised study
Kuipers 2004	Allocation: randomised Participants: people with any functional psychosis Interventions: Croydon Outreach and Assertive Support Team versus treatment‐as‐usual
Lang 2014	Allocation: randomised Participants: children with schizophrenia Interventions: CBT plus standard care versus standard care Outcomes: no usable data, the reported outcomes were not predefined for this review (subscale scores of Wechsler Memory Scale)
Leclerc 2000	Allocation: randomised Participants: people with schizophrenia Interventions: coping skill (not CBT) versus control
Lecomte 2008	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT plus standard care versus standard care versus social skill training
Li 2013	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT plus antipsychotics versus antipsychotics
Li 2013b	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT plus antipsychotics versus antipsychotics
Li 2014b	Allocation: randomised Participants: people with schizophrenia Interventions: CBT versus traditional health education (not standard care)
Li 2015c	Allocation: quasi‐randomised study
Lin 2014	Allocation: randomised Participants: schizophrenia with depression Interventions: CBT citalopram plus antipsychotics versus citalopram plus antipsychotics Outcomes: no usable data, the author did not report data for predefined outcomes
Lincoln 2012	Allocation: randomised Participants: people with schizophrenia Interventions: CBT with elements of meta‐cognitive techniques
Liu 2013	Allocation: randomised Participants: people with schizophrenia Interventions: CBT and token therapy plus standard care versus standard care
Liu 2015	Allocation: randomised Participants: people with schizophrenia Interventions: CBT plus standard care versus standard care Outcomes: no usable data, the reported outcomes were not predefined for this review
Lu 2012	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive remediation versus treatment‐as‐usual
Lu 2014a	Allocation: randomised Participants: schizophrenia Interventions: CBT versus general supportive psychotherapy
Lysaker 2009	Allocation: randomised Participants: people with schizophrenia spectrum disorders Interventions: Indianapolis Vocational Intervention Program versus support services
McLeod 2007	Allocation: randomised Participants: people with schizophrenia who were experiencing auditory hallucinations Interventions: CBT plus standard care versus standard care Outcomes: no usable data, author did not report any predefined outcome data relevant to this review
Mo 2015	Allocation: quasi‐randomised
Morrison 2014	Allocation: randomised Participants: people at risk of schizophrenia ‐ not people with schizophrenia
NCT00810355	Allocation: randomised Participants: people with schizophrenia Interventions: Cognitive Behaviour Therapy (CBT) combined with Cognitive Remediation (CR) versus CBT alone versus Support Services (SS) alone
NCT00960375	Allocation: randomised Participants: people with schizoaffective disorder or schizophrenia mood disorders, or both, with psychotic features Interventions: behavioural treatment of smoking cessation versus a manualised smoking cessation program
NCT02105779	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive remediation treatment versus control
NCT02420015	Allocation: randomised Participants: people with schizophrenia Intervention: the two groups received cognitive‐behavioural smoking cessation counselling
NCT02535923	Allocation: randomised Participants: people with psychosis Intervention: CBT versus 'health and wellness'
NCT02751632	Allocation: randomised Participants: people with psychosis Intervention: CBT versus 'support and problem‐solving'
Nordentoff 2005	Allocation: randomised Participants: first episode of psychosis Interventions: not CBT, assertive community treatment, family involvement, and social skills training
O'Connor 2007	Allocation: randomised Participants: people with delusional disorders (criteria for schizophrenia had never been met)
O'Donnell 2003	Allocation: randomised Participants: people with schizophrenia Interventions: compliance therapy versus supportive counselling
O'Driscoll 2015	Allocation: only one arm from an RCT
Owen 2015	Allocation: quasi‐randomised
Penades 2006	Allocation: randomised Participants: people with schizophrenia disorder Interventions: CBT versus cognitive remediation therapy
Penn 2009	Allocation: randomised Participants: people with schizophrenia spectrum disorders Interventions: group CBT versus Supportive Therapy
Phillips 2002	Allocation: not randomised Participants: people at risk of developing psychosis
Pinto 1999	Allocation: randomised Participants: people with schizophrenia disorder Interventions: CBT combined with social skill training versus supportive therapy
Qi 2012	Allocation: quasi‐randomised
Rector 2005	Allocation: randomised Participants: people with schizophrenia Intervention: CBT versus psychoeducation (psychoeducation was not standard care)
Reeder 2014	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive remediation versus treatment‐as‐usual
Richmond 2005	Allocation: randomised Participants: schizophrenia with tobacco dependence Interventions: Cognitive Behaviour Therapy (CBT) and nicotine replacement therapy (NRT) versus treatment‐as‐usual
Sellwood 2000	Allocation: randomised Participants: schizophrenia Interventions: family‐based intervention versus treatment‐as‐usual
Sensky 2000	Allocation: randomised Participants: people with schizophrenia Interventions: CBT versus befriending
Shao 2013	Allocation: randomised Participants: people with psychosis, with 59% schizophrenia Interventions: CBT plus antipsychotics versus antipsychotics Outcomes: no usable data, the author did not report the treatment duration and length of follow‐up
Shi 2015	Allocation: cluster‐randomised Participants: people with chronic schizophrenia Interventions: CBT plus medication versus medication Outcomes: no usable data, the author did not report the number of clusters
Song 2012	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT versus control group (unclear intervention)
Song 2014	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT plus standard care versus standard care
Turkington 2008	Allocation: randomised Participants: people with schizophrenia Interventions: CBT versus befriending
Valmaggia 2005	Allocation: randomised Participants: people with schizophrenia Intervention: CBT versus supportive counselling
Wang 2003	Allocation: randomised Participants: first‐episode schizophrenia Intervention: cognitive therapy plus antipsychotics versus antipsychotics. The cognitive therapy focused on acceptance without cognitive or behavioural modifications.
Wang 2013	Allocation: randomised Participants: people with schizophrenia Interventions: antipsychotics plus CBT versus antipsychotics plus health education
Wang 2013a	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive existence intervention versus community follow‐up
Wang 2014	Allocation: randomised Participants: people with schizophrenia Interventions: not CBT but cognitive rehabilitation nursing
Wei 2012	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive therapy (not CBT) plus antipsychotics versus antipsychotics
Wu 2012	Allocation: randomised Participants: first‐episode paranoid schizophrenia Interventions: CBT plus antipsychotics versus antipsychotics Outcomes: no usable data, the author did not report the number of participants in each group
Wu 2013	Allocation: randomised Participants: people with schizophrenia Interventions: CBT versus routine nursing psychological care (the nursing psychological care was not standard care and the CBT group did not receive this psychological care)
Wykes 2005	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT plus standard care versus standard care
Xie 2013	Allocation: quasi‐randomised
Xu 2014	Allocation: quasi‐randomised
Yang 2012	Allocation: randomised Participants: people with schizophrenia Interventions: antipsychotics plus CBT versus antipsychotics plus health education (the health education was not standard care and the CBT group did not receive health education)
Zeng 2014	Allocation: randomised Participants: people with schizophrenia Interventions: CBT plus standard care versus standard care Outcomes: no usable data, the author did not report the treatment duration
Zhang 2005	Allocation: quasi‐randomised
Zhao 2012	Allocation: randomised Participants: people with schizophrenia Interventions: cognitive insight therapy plus medication versus medication
Zhou 2015b	Allocation: randomised Participants: people with schizophrenia Interventions: group CBT versus standard care

^{CBT = 
 CR =
 DSM‐IV (or ‐V) =
 NRT =
 PenliteD =
 SS =}