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Background.Suicide safety planning (SSP) is a suicide prevention approach that involves developing a collaborative plan between a service provider such as an occupational therapist and a person who is at risk of suicide. Purpose.To synthesize effectiveness studies on SSP. Method.Using the Joanna Briggs Institute methodology, we conducted a systematic review of effectiveness studies including a: (1) title and abstract screening; (2) full-text review; (3) critical appraisal; and (4) narrative synthesis. Findings.We included 22 studies. Critical appraisal scores ranged from 38.5 to 92.3 (m = 63.7). The types of interventions included were: standard and enhanced SSP (n = 11); electronically delivered SSP (n = 5); and SSP integrated with other approaches (n = 6). Only three studies identified meaningful activity as a component of SSP. Evidence across a range of studies indicates that SSP is effective for reducing suicide behavior (SB) and ideation (SI). While some studies have demonstrated effectiveness for reducing symptoms of mental illness, promoting resilience and service use, the number of studies exploring these outcomes is currently limited. Implications.Occupational therapists support individuals expressing SI, and SSP is a necessary skill for practice.

Background.Meaningful activity participation has been identified as a key outcome of services designed to support individuals during and following homelessness. Little is known about the effectiveness of interventions for promoting this outcome. Purpose.To identify the range and effectiveness of interventions on promoting meaningful activity participation among persons with experiences of homelessness. Method.We conducted a systematic review using the Joanna Briggs Institute methodology following PRISMA guidelines including a critical appraisal and narrative synthesis. Findings.Of 12,343 titles and abstracts screened, we included 12 studies. The authors of the included studies primarily used standardized measures of meaningful activity engagement. Critical appraisal scores ranged from 50.0 to 77.8. The most common interventions evaluated in the included studies were psychosocial interventions (n= 6; 50.0%), followed by case management and housing support interventions (n= 4; 33.3%) and Housing First (n= 2; 16.7%). While several interventions demonstrated effectiveness in promoting meaningful activity participation including psychosocial and case management interventions, Housing First, Critical Time Intervention, and a peer support intervention were found to be ineffective for promoting engagement in meaningful activity. Conclusion.Few intervention studies have been conducted that demonstrate effectiveness for promoting participation in meaningful activity for individuals during and following homelessness. Occupational therapy researchers and practitioners can build on existing evidence by developing and evaluating novel approaches by co-designing interventions in collaboration with persons with experiences of homelessness and service providers.