Phone Call Follow-up After Crisis Centre Presentation With Suicidal Ideation and Behaviours.

The proposed randomized control trial will occur over a three-month period at the Crisis Response Centre (CRC) in Winnipeg. The CRC serves as a standalone facility that offers 24/7 walk in assessment and treatment for adults with mental health crises, as well as referrals to mental health services. All individuals who present to the CRC and report any suicidal ideation or behaviour within the one week prior to their presentation will be considered eligible for the study. Further inclusion and exclusion criteria are outlined in the "Eligibility" section. A variety of employees at the CRC will be involved in different roles to assist with this research.

In current practice, all individuals are able to connect with Crisis Clinicians working at the CRC both in person and through the use of a telephone call to the Mobile Crisis Unit, which provides the capacity for Crisis Clinicians to both talk on the phone to individuals or leave the CRC and assess individuals offsite to support them. All individuals who connect with Crisis Clinicians in any of these capacities have a Mental Health Assessment (MHA) completed by Crisis Clinicians. All Crisis Clinicians are trained specifically in how to assess and assist individuals with suicidal thoughts or behaviours, therefore making them optimal individuals to assist in this research given their experience to support the safety of individuals in crisis.

Participants who present to the CRC, are deemed appropriate for participation in the study based on inclusion and exclusion criteria, and who are otherwise ready for discharge back into the community will be consented by the same Crisis Clinician who completed their MHA. Participants will be informed that they will receive no less than one and no more than five phone calls over the five weeks immediately following the date of their discharge from the CRC as part of this study, without informing them of the specific differences between the intervention and control groups. Individuals will decide prior to discharge whether they would like to participate, and those who choose to participate will provide a phone number that they can be contacted at and that messages can be left on.

Individuals who choose to participate will be randomized to either a control or intervention group based on a coin flip done by the Attendants (Front Desk Staff at the CRC). The Crisis Clinician will not be involved in the randomization process to prevent allocation bias. Once participants are randomized, they will be informed by the Attendants of the exact dates on which they should expect phone calls without revealing to the participant what group they have been randomized to, thereby blinding the participants. This blinding is possible because we have concealed the exact number and nature of phone calls that will occur for the two groups. Attendants will update a schedule after randomizing each participant with appointment times for all phone calls required for the study.

On each day, Team Leads will be responsible for reviewing the schedule and allocating all required phone calls between themselves and the Crisis Clinicians working that day. Crisis Clinicians will attempt to call participants a maximum of three times on the assigned day between 0800 and 2200. All Crisis Clinicians are provided with scripts to follow for phone calls based on which group they are calling and at what time. If Crisis Clinicians are unsuccessful at contacting the participant by the third attempt, they will leave a scripted voicemail offering support and encouraging the participant to call back. If at any point during phone conversations the Crisis Clinician has concerns about a participant's safety or suicide risk, this will be approached in the same way the Clinician would approach anyone who calls in to the Mobile Crisis Unit with suicidal ideation or behaviours.