Clinical trial NCT04949711: Impacts of Subsidized Ridesharing on Drunk Driving, Alcohol Consumption, and Mobility
Official title: Impacts of Subsidized Ridesharing on Drunk Driving, Alcohol Consumption, and Mobility
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Driving Drunk
Alcohol Drinking
Keywords: Drunk driving
Ridesharing
Alcohol Drinking
Driving under the influence (DUI)
Lead sponsor: Columbia University
Sponsor class: OTHER
Collaborators: name: National Institute on Alcohol Abuse and Alcoholism (NIAAA)
First posted: 2021-07-02
Enrollment: 7034
Sex: ALL
Minimum age (years): 21
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: The purpose of this research study is to understand people's alcohol use in public places and their risks for harm. The overall goal of this study is to test the effects of subsidized ridesharing as an intervention to reduce self-reported alcohol-impaired driving, along with alcohol consumption and changes to mobility.

Detailed description: Motor vehicle crashes are the leading cause of death for people aged 13-25 years in the US, and approximately 31% of all fatal crashes involved some alcohol use. Several peer-reviewed studies have found that ridesharing was associated with fewer alcohol-involved crashes and DUI arrests. Theories of behavioral economics provide a clear theoretical mechanism by which ridesharing will reduce alcohol-involved motor vehicle crashes compared to other private transportation. However, while ridesharing may be an effective intervention to reduce alcohol-involved crashes, it may simultaneously increase alcohol consumption. This study will assess the impacts of subsidized ridesharing on impaired driving, alcohol consumption, and mobility. Participants will be randomized to either receive a rideshare voucher or an online shopping voucher, and effects on alcohol impaired driving and alcohol consumption will be measured. A GPS sub-group will use a custom smartphone application for GPS tracking to measure mobility.

Eligibility criteria: Inclusion Criteria:

* ≥ 21 years old
* Reside in a study city
* Have a driver's license
* Have access to a motor vehicle
* Have consumed alcohol in a bar in the last 30 days
* Own a smartphone
* Read English

Exclusion Criteria:

* Non-English speaking participants

Primary outcomes:
measure: Change in the alcohol impaired driving incidents
timeFrame: Baseline, 1 week follow-up, 2 week follow-up
Secondary outcomes:
measure: Change in number of days in alcohol consumption
timeFrame: Baseline, 1 week follow-up, 2 week follow-up
measure: Average frequency of trips to alcohol outlets
timeFrame: Day 3 to Day 17 of study
measure: Average duration of trips to alcohol outlets
timeFrame: Day 3 to Day 17 of study
measure: Change in The Drinker Inventory of Consequences Score
timeFrame: Baseline, 1 week follow-up, 2 week follow-up
Other outcomes:
Locations:
city: New York
country: United States
facility: Columbia University Irving Medical Center
state: New York
Study officials:
affiliation: Columbia University
name: Christopher Morrison, PhD
role: PRINCIPAL_INVESTIGATOR
References: