Project QueST 2023: Queer Survivors of Trauma

Change in hazardous drinking levels

Time Frame: Baseline (Pre-intervention) and Three-month Follow-up (3 months post first treatment session)

The Alcohol Use Disorders Identification Test (AUDIT) will be used to measure hazardous drinking levels. The AUDIT is a 10-item screening measure of problematic alcohol use with individual items ranging from 0 to 4. Scores of 8 and higher are thought to reflect hazardous alcohol use. At baseline and 3-month follow-up assessments, participants will complete the AUDIT in reference to the past month.

Change in drinking quantity

Time Frame: Baseline (Pre-intervention), Immediate Post-intervention (1 week post first treatment session), and Three-month Follow-up (3 months post first treatment session)

To assess drinking quantity in the past week, the investigators will ask participants one question that assesses retrospective estimates for number of drinks consumed on average (in a typical week). The investigators will assess change in the total number of drinks consumed on a typical week in the past month from baseline to total number of drinks consumed in the past week at one-week follow-up and from baseline to total number of drinks consumed in a typical week in the past month at 3-months follow-up assessment. At baseline and 3-month follow-up assessments, participants will complete the hazardous drinking quantity question in reference to a typical week during the past month. At the one-week follow-up assessment, participants will complete the hazardous drinking quantity question in reference to the past week.

Change in PTSD symptom severity

Time Frame: Baseline (Pre-intervention), Immediate Post-intervention (1 week post first treatment session), and Three-month Follow-up (3 months post first treatment session)

Posttraumatic stress disorder (PTSD) symptoms will be measured with the Psychometric Properties of the Posttraumatic Diagnostic Scale for DSM-5 (PDS-5). The PDS-5 is a 24-item self-report measure designed to assess the severity of DSM-5 PTSD symptoms. The 24-item scale comprises a checklist of traumatic event types the individual has experienced, identification of the most distressing traumatic event, and an assessment of PTSD symptoms. The assessment of PTSD symptoms yields a total score and three subscales (re-experiencing, avoidance, and arousal), and a cutoff score of 28 or higher indicates a probable PTSD diagnosis. Items are scored 1 = once a week or less/a little to 4 = 6 or more times a week/severe. At baseline and 3-month follow-up assessments, participants will complete the PDS-5 in reference to the past month. At the one-week follow-up assessment, participants will complete the PDS-5 in reference to the past week.

Change in heavy drinking frequency

Time Frame: Baseline (Pre-intervention), Immediate Post-intervention (1 week post first treatment session), and Three-month Follow-up (3 months post first treatment session)

The investigators will assess the number of heavy drinking days (days where participants assigned female or intersex at birth consume ≥4 standard drinks and participants assigned male at birth consume ≥5 standard drinks). Response options range from 0 = never to 4 = almost every day where higher scores represent greater heavy drinking frequency. The investigators will assess change in frequency of heavy drinking days in the past month from baseline to frequency of heavy drinking days in the past week at one-week follow-up and from baseline to frequency of heavy drinking days in the past month at 3-months follow-up. At baseline and 3-month follow-up assessments, participants will report frequency of heavy drinking days over the past month. At the one-week follow-up assessment, participants will report frequency of heavy drinking days over the past week.