Please select the eligibility criteria that correspond to the clinical trial below.
Title: Brief Alcohol Interventions With Mobile Phone Applications for University Students: Interventions Targeting Differing Risk Levels in Two Consecutive Randomized Controlled Trials
Brief Summary: The purpose of this study is to evaluate the efficacy of three mobile phone applications, Promillekoll, PartyPlanner and TeleCoach among university student union members with problematic drinking. Two trials are conducted, one a three-armed randomized controlled study, and the second a two-armed randomized control study. Outcomes are measured in terms of changes in problematic alcohol use at follow up 6,12 and 18 weeks after baseline data gathering. Both the Promillekoll and PartyPlanner apps feature real time registration of alcohol consumption and give feedback of estimated blood alcohol concentration levels. PartyPlanner also allows for planning an alcohol consumption event in advance and for later comparison of the plan with actual consumption. Study 1 compares these two apps with a control group. In Study 2, participants reporting alcohol consumption above the weekly recommended level are redirected to randomized assignment to an in-depth app, TeleCoach, which offers different exercises for reducing alcohol use. After 6 weeks the controls are offered the TeleCoach intervention for 6 weeks, and the first intervention group loses app access. In both studies, followup occurs 6, 12 and 18 weeks after baseline registration.

Hypotheses:

Study 1: 1. The groups receiving the Promillekoll and PartyPlanner interventions will reduce their alcohol use to a larger extent than the control group at follow-up compared to the baseline level. 2. The planning function in PartyPlanner will be associated with an increased decrease in alcohol consumption compared to only real-time use for Promillekoll.

Study 2: The proportion of participants with risky use above recommended levels will decline faster in the group that receives the intervention first, in comparison to controls.


Options:
A: Inclusion Criteria:

* Participants must be invited to the Danish 'Diet, Smoking, Alcohol and Exercise' nationwide health study.
* Participants must have a weekly alcohol consumption above the recommended Danish limits (168 grams of alcohol for women, 252 grams of alcohol for men).

Exclusion Criteria:

* Weekly alcohol consumption less than 168 grams of alcohol for women and 252 grams of alcohol for men.
* Participants who have not informed their email address.
B: Inclusion Criteria:

* membership in the included student unions

Exclusion Criteria:
C: Inclusion Criteria:

* age \>21 years
* frequent alcohol use
* willing to use a cell phone and breathalyzer for 28 days
* have a valid photo ID (driver's license, passport, state ID)
* are willing to sign an off-campus property transfer form and return study equipment in four weeks

Exclusion Criteria:

* desire for, or have received, treatment for alcohol use in the past 6 months
* non-English speaking
D: Inclusion Criteria:

* Access to a smartphone running iOS or Android OS.
* AUDIT \>7 for men or AUDIT \>5 for women.

Exclusion Criteria:

* AUDIT \<8 (men) or \<6 (women)
* No access to a smartphone running iOS or Android OS.

Answer: B