Trial reportJournal of substance use and addiction treatment2026
Preventing alcohol and cannabis-impaired driving among adolescents: Effects of a web-intervention in a driver education program.
Trial report in Journal of substance use and addiction treatment, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04959461 (A Pilot Trial to Prevent Intoxicated and Impaired Driving Among Adolescents), which is not on this map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Pilot Trial to Prevent Intoxicated and Impaired Driving Among Adolescents
Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
introductionAdolescence is a critical period during which teens initiate and escalate substance use, as well as begin learning to drive. Limited research has evaluated programs to prevent impaired driving behaviors in this age group. We tested effects of adding a single-session web intervention to existing driver education curriculum.
methodsDriving school staff recruited participants aged 15.5 to 17 from 12 driver education programs. Participants were randomized to driver education only (usual care, 30 h) or driver education plus a single-session web intervention (webCHAT, ∼30 min). Participants completed surveys at baseline and six months.
resultsThe sample (N = 198) was 60% female, 80% White, and averaged 15.7 (SD = 0.8) years old. At baseline, 25% and 8% reported past three-month alcohol and cannabis use, respectively, and 19% and 10% reported ever riding with someone under the influence of alcohol or cannabis, respectively. At follow-up, webCHAT participants reported significantly lower perceived peer alcohol (-1.14, 95% CI: -1.915, -0.372, p = 0.004) and cannabis (-1.09, 95% CI: -1.866, -0.306, p = 0.007) use norms compared to usual care participants. Both webCHAT and usual care participants significantly reduced past month alcohol and cannabis use and viewed impaired driving as riskier and less acceptable at follow-up.
conclusionDriver education programs offer a unique opportunity to prevent substance use and impaired driving when adolescents are motivated to participate to secure their driver's license. These programs should continue updating curricula to reflect the state of science for alcohol and drug prevention. CLINICAL
trial registrationNCT04959461.
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