Table 3 Participant eligibility criteria

1.

Identifies as male.

2.

18 years of age or older

3.

Has presented at a participating ED with self-harm within the preceding 4 weeks. Self-harm is defined as self-reported intentional self-poisoning or self-injury, regardless of whether there is evidence that the act was intended to result in death. Where there is ambiguity about intent, inclusion will be guided by discussion with the PI to allow consistency between sites.

4.

Able to read and understand English or French

5.

Willing to attend six PST sessions for a period of up to 6 weeks

6.

Willing to use a smartphone application to facilitate the treatment of self-harm

7.

Willing to return to hospital for follow-up appointments

8.

Willing and able to provide informed consent