Study	Reason for exclusion
Amering 2005	Allocation: not randomised.
Anderson 2003	Allocation: not randomised.
Appelbaum 2004	Allocation: not randomised.
Atkinson 2004	Allocation: not randomised.
Backlar 1997	Allocation: not randomised.
Bracken 2001	Allocation: not randomised.
Brown 1999	Allocation: randomised. Participants: end‐of‐life patients.
Campbell 2000	Allocation: not randomised.
Dawson 2001	Allocation: not randomised.
Ditto 2001	Allocation: randomised. Participants: end‐of‐life patients.
Elbogen 2006	Allocation: not randomised.
Froman 2005	Allocation: randomised. Participants: end‐of‐life patients.
Geller 2000	Allocation: not randomised.
Griffith 2006	Allocation: not randomised.
Gutheil 2005	Allocation: randomised. Participants: end‐of‐life patients.
Heiman 2004	Allocation: cluster randomised. Participants: end‐of‐life patients.
Henderson 1999	Allocation: Cochrane review of randomised trials. Participants: people with a diagnosis of psychotic illness. Interventions: patient‐held clinical information.
Joshi 2003	Allocation: not randomised.
Kim 2007 a	Allocation: not randomised (qualitative sub‐study of a larger randomised trial).
LaFond 2002	Allocation: not randomised.
Lang 1999	Allocation: not randomised.
Loewy 2004	Allocation: not randomised.
McKenna 2000	Allocation: not randomised.
Molloy 2000	Allocation: randomised. Participants: end‐of‐life patients.
Murphy 2000	Allocation: randomised. Participants: end‐of‐life patients.
O'Connell 2005	Allocation: not randomised.
Patel 2004	Allocation: systematic review. Participants: end‐of‐life patients.
Pearlman 2005	Allocation: randomised. Participants: end‐of‐life patients.
Peto 2004	Allocation: not randomised.
Prendergast 2001 a	Allocation: not randomised.
Priebe 1997	Allocation: not randomised.
Priebe 1999	Allocation: randomised. Participants: people with schizophrenia in acute day hospital. Intervention: patient treatment wishes. Outcomes: unable to obtain data for inclusion in meta‐analysis.
Rich 2004	Allocation: not randomised.
Rissmiller 2001	Allocation: not randomised.
Ritchie 1998b	Allocation: not randomised.
Schouten 2006	Allocation: not randomised.
Springer Loewy 2004	Allocation: not randomised.
Srebnik 1999 a	Allocation: not randomised.
Srebnik 2003	Allocation: not randomised.
Srebnik 2005	Allocation: not randomised.
Sutherby 1998	Allocation: not randomised.
Swanson 2000	Allocation: not randomised.
Swanson 2006a	Allocation: not randomised.
Swanson 2006b	Allocation: not randomised.
Swanson 2006c	Allocation: randomised. Participants: people with severe mental illness. Intervention: psychiatric advance directives (PADs) facilitation. Outcomes: completion of AD, 1‐month working relationship with clinicians, satisfaction with services.
Swartz 2006	Allocation: randomised. Participants: people with severe mental illness. Intervention: psychiatric advance directives (PADs) facilitation. Outcomes: patient preferences and interest in PADs.
Tapp 2006	Allocation: not randomised.
Van Dorn 2006	Allocation: not randomised.
Van Os 2004	Allocation: randomised. Participants: people with schizophrenia. Intervention: use of two‐way communication checklist.
VanWilligenburg 2005	Allocation: not randomised.
Wareham 2005	Allocation: not randomised.
Warner 2000	Allocation: cluster randomised. Participants: people with long‐term mental illness. Intervention: patient held shared care records.