Alcohol and Other Psychoactive Substances in Road Traffic - a Case-control Study

• Conditions: Prevalence of Psychoactive Substances in Road Traffic; Psychoactive Substances in Accident Involved Drivers; Relative Risk Estimation of Accident Involvement for Impaired Drivers

• Registration Number: NCT00570518
• Lead Sponsor: Finnish Institute for Health and Welfare

Brief Summary

The main purpose of the study is to determine the accident risk when driving under the influence of psychoactive substances, including alcohol (DUI). Other aims are to find out the prevalence of psychoactive substances in road traffic and to obtain information on the role of these substances in road traffic accident causations.

For the purposes of the study, drivers of motorised vehicles are randomly stopped and interviewed and breath alcohol is recorded. Also, an oral fluid sample is taken and psychoactive substances are investigated in the laboratory. For cases, drivers injured in traffic accidents are asked to participate to the study. A whole blood sample and, if possible, an oral fluid sample is taken and psychoactive substances are determined in the laboratory. Also, people diseased in road traffic accident are included in the study. The information required for these subjects are taken from a register database.

The study is part of an EU-project DRUID. Altogether 13 European countries take part to the study.

Detailed Description

Not available

Study Timeline

• Study Start: 2007-09
• Study First Submitted: 2007-12-10
• Study First Submitted QC: 2007-12-10
• Study First Posted: 2007-12-11
• Status Verified: 2011-09
• Last Update Submitted: 2011-09-30
• Study Completion: 2011-10
• Last Update Posted: 2011-10-03

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 4500

Inclusion Criteria

• 18 years or older
• driver of a motorised vehicle or bicycle
• is willing to participate to the study (not applicable to the diseased drivers; information obtained from a register database)

Exclusion Criteria

• 17 or younger
• not the driver of a motorised vehicle or bicycle
• does not want to participate (not applicable to the diseased drivers; information obtained from a register database)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
relative risk estimation of accident involvement for drivers impaired by psychoactive substances	three years

Secondary Outcome Measures

Name	Time	Method
prevalence of psychoactive substances among accident involved drivers	three years
prevalence of psychoactive substances in the general driving population	three years

Trial Locations

Locations (1)

National Public Health Institute; 🇫🇮 Helsinki, Finland