Allard 1992.

Study characteristics
Methods	Participants were individually randomised using sealed and numbered envelopes to intensive outpatient treatment or TAU. N lost to follow‐up: 24/150 (16.0%) for repetition of SH by the 24‐month assessment. Location: Montreal, Canada.
Participants	Number of total participants: 150 participants were randomised, 76 were allocated to intensive outpatient treatment and 74 were allocated to TAU. Profile of participants: mean (SD) age not reported. Just over half (n = 83; 55.3%) were female. Half (n = 75; 50.0%) had a history of SH (i.e. multiple episodes of SH). The majority were diagnosed with MDD (n = 131; 87.3%), followed by SUD (n = 80; 53.3%), and any personality disorder (n = 68; 45.3%). Source of participants: patients presenting to hospital following a suicide attempt (i.e. SH with suicidal intent). Inclusion criteria: i) resident in the catchment area; ii) sufficient language ability (French or English); iii) no physical handicap preventing attendance; iv) not already in institutional care; v) able to provide informed consent; vi) not sociopathic; vii) suicide attempt within one week prior to trial entry. Exclusion criteria: i) no fixed address; ii) moving out of the catchment area; iii) in the care of an institution that ensures follow‐up after all suicide attempts; iv) diagnosed with a physical disability that would prevent attendance at follow‐up sessions; v) unable to provide informed consent; vi) diagnosed with sociopathy and presents a physical threat to hospital personnel; vii) suicide attempt occurred over one week preceding trial entry.
Interventions	Intervention: intensive outpatient treatment consisting of 18 sessions (duration not reported), including one delivered in the participants' home (delivered by a social worker). Sessions were weekly for the first month, fortnightly for the next three months, and monthly for the remaining eight months. Therapeutic content included: developing a collaborative treatment plan and other various therapeutic approaches including psychoanalytically oriented psychotherapy, psychosocial therapy, AOD treatment, or behavioural therapy as needed. At the conclusion of the 12‐month treatment period, participants were referred to usual psychiatric care. Sessions were delivered by a social worker (information on experience not reported). Comparator: TAU consisting of treatment by the regular personnel within the same hospital (number and duration of sessions not reported). Further information on therapeutic content not reported. Length of treatment: 12 months.
Outcomes	Primary outcome(s): i) repetition of SH according to hospital records, Coroner's records, and/or collateral informant report. Secondary outcome(s): i) treatment adherence as measured by the number of sessions attended; ii) suicide as ascertained from Coroner's records and collateral informant report.
Notes	Source(s) of funding: no information on funding reported. Conflict(s) of interest: no information on conflicts of interest reported.