Recruitment and study procedures feasibility

Study process log will assess recruitment pathway (patient/PrevenTell), number of screened individuals, number of individuals who decline, number of individuals excluded and on what grounds, time taken to recruit, time from recruitment to offered intervention, number of completed sessions and completed assessment forms. Criteria for success: * 15-20 participants recruited within 12 moths. * Recruited participants may be offered the group intervention within 4 months. * At least 80% of participants complete a minimum of 3 sessions.

Through study completion, which is anticipated to occur approximately 1 year and 9 months from the study start date.

Acceptability and relevance

Will be evaluated qualitatively through written anonymous open-ended questions after each visit.

After each session (Day 1, Day 8, Day 15, Day 22, Day 29)

Client Satisfaction Questionnaire (CSQ-8)

a scale for measuring of patient satisfaction with the service received. It consists of 8 questions and satisfaction is measured with a range of 8-32. Higher scores indicate greater satisfaction. Criteria for success: At least 80% of participants score 26 points or higher

Day 29 (Post-intervention, session 5)

Credibility/Expectancy Questionnaire (CEQ)

A scale for measuring treatment expectancy and rationale credibility to use in clinical outcome studies. Expectancy is measured with a range of 0-100% and credibility are measured with a range of 1-9. Higher scores indicate greater treatment credibility.

Day 15 (after session 2)

Negative Effects Questionnaire (NEQ)

The NEQ consists of 32 items assessing the occurrence of negative or unwanted effects associated with psychological treatment. For each item, participants first indicate whether the effect occurred (yes/no). If endorsed, participants rate how negatively the effect impacted them on a 5-point Likert scale ranging from 0 to 4 (0 = not at all, 4 = extremely). Severity ratings therefore range from 0 to 4 per item, with higher scores indicating greater negative impact. When severity ratings are summed across all 32 items, the total NEQ severity score ranges from 0 to 128, with higher total scores reflecting a greater number and/or severity of negative effects. In addition, participants indicate whether each negative effect is attributed primarily to the intervention or to other circumstances. NEQ data will be analyzed descriptively, including the number of endorsed negative effects, severity ratings, and attribution.

Day 29 (Post-intervention, session 5), and 3 months after session 5 (i.e., Day 29 + 3 months)

Hospital Anxiety and depression scale (HADS)

a scale for detecting states of depression and anxiety first developed for the setting of an hospital medical outpatient clinic.. It consists of 14 questions where both depression and anxiety is measured with a range of 0-21. Score 7 or lower indicate no clinically significant anxiety or depression. Score 8-10 indicate gray area of depression or anxiety. Score 11 or more are likely indicating clinically significant depression or anxiety. Scores between 15 and 21 indicate severe anxiety or depression.

screening visit, Day 29 (Post-intervention, session 5), and 3 months after session 5 (i.e., Day 29 + 3 months)

Posttraumatic Stress Disorder Checklist (version 5) (PCL-5)

revised from the original PCL, is a self-report measure developed to assess PTSD symptoms in accordance with the diagnostic criteria outlined in the DSM-V. It consists of 20 items to measure symptom severity, with options "Not at all," "A little bit," Moderately," "Quite a bit," and "Extremely," that correspond to scores of 1-5. A total symptom severity score (range - 0-80) can be obtained by summing the scores of all 20 items. It is suggested that cutoff score between 31-33 is indicative of probable PTSD across samples

screening visit

Mini-International Neuropsychiatric Interview 7.0 (M.I.N.I 7.0)

a brief, structured diagnostic interview developed collaboratively by psychiatrists and clinicians in the United States and Europe. It was designed to assess psychiatric disorders according to DSM-IV and ICD-10 criteria and created to provide a concise yet reliable diagnostic tool suitable for use in multicenter clinical trials and epidemiological studies, as well as a preliminary assessment instrument in non-research clinical settings

screening visit

The General Health Questionnaire 12 (GHQ -12)

measures self-rated general psychological health in the general population. It consists of 12 items, each item has four response options and is scored using the binary method (0, 0, 1, 1) with maximum score of 12. A high score indicates a potential risk of psychiatric problems. Individuals who score 3 or higher are defined as having reduced well-being.

screening visit, Day 29 (Post-intervention, session 5), and 3 months after session 5 (i.e., Day 29 + 3 months)

Work and Social Adjustment Scale (WSAS)

a brief, self-report measure designed to assess functional impairment attributable to an identified problem or mental health condition. It consists of five items evaluating the impact on work, home management, social leisure, private leisure, and close relationships. Each item is rated on a 9-point Likert scale ranging from 0 (no impairment) to 8 (very severe impairment), yielding a total score between 0 and 40.

screening visit, Day 29 (Post-intervention, session 5), and 3 months after session 5 (i.e., Day 29 + 3 months)