An online tailored intervention targeting heavy drinking in students in secondary vocational education (MBO students)

Usability and effectiveness of an online just-in-time adaptive tailored intervention targeting heavy drinking in students in secondary vocational education (MBO students)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON28135

Enrollment

1310

Registered

2017-08-16

Start date

2017-08-21

Completion date

Unknown

Last updated

2024-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adolescents, young adults, alcohol

Interventions

Students who give informed consent will be randomly assigned to the experimental condition (just-in-time adaptive tailored feedback about alcohol drinking, and usual alcohol feedback in Testjeleefstij

Eligibility

Inclusion criteria

Inclusion criteria: - MBO students aged 16 to 24 years who are heavy drinkers. Heavy drinking is defined as: 1) drinking more than the low-risk drinking guidelines (Health Council of the Netherlands) recommending for adolescents (aged 16-17 years) to drink no alcohol and for adults to drink a maximum of 1 (women) or 2 (men) glasses of standard alcohol units daily and/or 2) binge drinking, that is, drinking 4 or more (women) or 6 or more (men) standard alcohol units at one occasion.

Exclusion criteria

Exclusion criteria: - No MBO students aged 16 to 24 years who are heavy drinkers

Design outcomes

Primary

Measure	Time frame
- Mean weekly alcohol consumption (continuous); - Frequency of binge drinking (dichotomous and continuous); - Frequency of heavy drinking (dichotomous). The frequency of binge drinking was measured as the number of days in the past week on which participants had drunk four (women) or six (men) or more glasses of alcohol (continuous) and the percentage of participants that had drunk four (women) or six (men) or more glasses of alcohol at least once per week (dichotomous) . The frequency of heavy drinking was measured as the percentage of participants drinking more than the mean weekly alcohol consumption rate of 0 (girls and boys =18 years) or 14 (males >=18 years) glasses of alcohol. Timepoints: EMA (i.e., daily measurement for 7 consecutive days) every six weeks starting at baseline and ending 43 weeks after baseline (in total 56 EMA's: 8 times x 7 days).	—

Measure

Time frame

- Mean weekly alcohol consumption (continuous); - Frequency of binge drinking (dichotomous and continuous); - Frequency of heavy drinking (dichotomous). The frequency of binge drinking was measured as the number of days in the past week on which participants had drunk four (women) or six (men) or more glasses of alcohol (continuous) and the percentage of participants that had drunk four (women) or six (men) or more glasses of alcohol at least once per week (dichotomous) . The frequency of heavy drinking was measured as the percentage of participants drinking more than the mean weekly alcohol consumption rate of 0 (girls and boys =18 years) or 14 (males >=18 years) glasses of alcohol. Timepoints: EMA (i.e., daily measurement for 7 consecutive days) every six weeks starting at baseline and ending 43 weeks after baseline (in total 56 EMA's: 8 times x 7 days).

—

Secondary

Measure	Time frame
Mood, attitude, intrinsic motivation, self-efficacy, coping planning and intentions towards drinking less alcohol than usual. Timepoints: - EMA (i.e., daily measurement for 7 consecutive days) every six weeks starting at baseline and ending 43 weeks after baseline (in total 56 EMA's: 8 times x 7 days) for mood, intrinsic motivation and self-efficacy. - Online surveys at baseline, and 2 weeks and 6 months follow-up (i.e., after the intervention period) for attitude, intention, coping planning.	—

Measure

Time frame

Mood, attitude, intrinsic motivation, self-efficacy, coping planning and intentions towards drinking less alcohol than usual. Timepoints: - EMA (i.e., daily measurement for 7 consecutive days) every six weeks starting at baseline and ending 43 weeks after baseline (in total 56 EMA's: 8 times x 7 days) for mood, intrinsic motivation and self-efficacy. - Online surveys at baseline, and 2 weeks and 6 months follow-up (i.e., after the intervention period) for attitude, intention, coping planning.

—

Contacts

Public ContactHilde van Keulen

hilde.vankeulen@tno.nl+31 88 8662659

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)