Trial Outcomes & Findings for The Drinking Dashboard Study (NCT NCT05630625)

Data for participants included in primary analyses

% of eligible screening participants who (yes/no) complete the baseline assessment (no specific tool)

% of randomized participants who (yes/no) complete 3-month follow-up assessment (no specific tool)

Measured using the 8-item Client Satisfaction Questionnaire. Scored from 1 to 4, with higher scores indicating greater satisfaction with treatment.

Measured using the Daily Drinking Questionnaire, which asks participants to indicate how many standard drinks they consumed on each day of a typical week in the past month.

Measured using the Daily Drinking Questionnaire, which asks participants to indicate the maximum number of drinks consumed on one occasion in the past month. Estimated using Widmark's formula (1932).

Measured using the 8-item Alcohol-Induced Blackout Measure-2 (ABOM-2). Participants indicate how often they have experienced 8 different blackout experiences (e.g., having fuzzy memories of drinking events, being unable to remember hours at a time) in the past month on a scale from 0 (never) to 4 (4 or more times). Item scores are summed to create a total score that ranges from 0 to 32, with higher scores indicating more frequent blackout experiences.

Measured using the 24-item Brief Young Adult Alcohol Consequences Questionnaire (BYAACQ). Participants indicate (0=no, 1=yes) if they experienced 24 consequences as a result of drinking in the past month. Items are summed to create a total score, with higher scores indicating a greater number of consequences in the past month.

% of people indicating they (a) were coerced into sexual activity or (b) coerced someone else into sexual activity in the past 3 months

% of people indicating they visited the emergency department in the past 3 months

How likely is it that you will lose memory of drinking events as a result of alcohol use in the next 30 days? Scored on 0-100 scale, with higher scores indicating more susceptibility.

Participants responded to 6 items indicating the extent to which they believed that blackouts would be (1) enjoyable, (2) good, (3) beneficial, (4) wise, (5) pleasant, and (6) safe. Responses were strongly disagree =1, disagree = 2, neutral = 3, agree = 4, strongly agree = 5. Scores from each of the six items were averaged, with higher scores indicating more positive expectancies for blackout.

Measured using the Alcohol and Drug Consequences Questionnaire scale. Participants indicated the extent to which they agreed with 16 statements regarding the benefits of decreased alcohol use (e.g., I would feel better physically). Responses range 0 (not important / wouldn't happen) to 4 (extremely important). Responses are summed, with higher scores indicating greater perceived benefits of decreasing alcohol use.

% confidence that participants could avoid a blackout, if they wanted to do so

Measured using the Insomnia Severity Index. Participants rate the extent to which they have struggled with sleep in the past two weeks (e.g., difficulty falling asleep, difficulty staying asleep, worry/distress about sleep). Responses range from 0 (e.g., none) to 4 (e.g., very severe). Items are summed and range 0-28, with higher scores indicating more severe insomnia.

Measured using the Positive and Negative Affect Schedule. Scores range 1 (very slightly or not at all) to 5 (extremely), with higher scores indicating more negative mood.