Breathalyzer Validation Study

University of Pennsylvania20 enrolled

Overview

The proposed project will test three commercial cellphone breathalyzers against a police grade breathalyzer device.The study will test the accuracy of these smartphone breathalyzers at assessing Breath Alcohol Content (BrAC) against a standard police grade breathalyzer. This study aims to fill the knowledge gap by determining the validity of smartphone paired breathalyzer devices to accurately assess BrAC. Data collection includes collection of BrAC measurements, as well as survey data.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

NONE

Enrollment

Conditions

Alcohol Drinking Alcohol Intoxication

Interventions

AlcohootDEVICE

Alcohoot branded smartphone-paired breathalyzer

BACtrack Mobile ProDEVICE

BACtrack Mobile Pro branded smartphone-paired breathalyzer

DRIVESAFE EvocDEVICE

DRIVESAFE Evoc branded smartphone-paired breathalyzer

Eligibility

Sex: ALLMin age: 21 YearsMax age: 39 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Age 21-39 old * Less than 4 drinking days and less than 12 drinks per week on average in the past 2 months * Have previously consumed four (women) or five (men) or more standard drinks without problems * A valid photo ID * Willing to take public transportation home, via septa or an uber rideshare credit. Exclusion Criteria: * Desire alcohol treatment now or received it in the past 6 months * Alcohol dependence with withdrawal per DSM-V criteria * Non-English-speaking * Individuals who have a medical condition or who are taking medication which limits or prevents the consumption of alcohol.

Outcomes

Primary Outcomes

Percentage Alcohol in Breath Variability

Difference in Breath Alcohol Concentration (BrAC) from police-grade (Intoxilyzer 240) and consumer smartphone-paired breath testing devices relative to Blood Alcohol Concentration (BAC) measured from blood draw after tertiary dose of alcohol.

Time frame: 8 Hours

Secondary Outcomes

Differences in Readings on Devices for Percentage of Alcohol in Breath

Mean difference in percent of blood in breath (BrAC) between the police-grade and personal, commercial breath testing devices

Time frame: 8 Hours

Data from ClinicalTrials.gov

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