Discrete choice experiment among cigarette consumers in Argentina, Chile and Colombia

Last registered on October 21, 2024

Pre-Trial

Trial Information

General Information

Title
Discrete choice experiment among cigarette consumers in Argentina, Chile and Colombia
RCT ID
AEARCTR-0014568
Initial registration date
October 14, 2024

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
October 19, 2024, 9:37 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
October 21, 2024, 11:03 AM EDT

Last updated is the most recent time when changes to the trial's registration were published.

Locations

Region
Region
Region

Primary Investigator

Affiliation
Universidad del Rosario

Other Primary Investigator(s)

PI Affiliation
CEDLAS
PI Affiliation
Universidad Adolfo Ibañez

Additional Trial Information

Status
In development
Start date
2024-10-21
End date
2024-11-30
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
Introduction. This study aims to investigate the preferences and decision-making processes of users of electronic nicotine delivery systems (ENDS), such as e-cigarettes and vapes, and users of conventional cigarettes in Argentina, Chile, and Colombia. As the use of ENDS has significantly increased, particularly among younger populations, understanding the factors that influence the choice between conventional and alternative nicotine products is crucial for developing effective public health policies. This investigation will examine how product characteristics affect preferences and behaviors across different demographic groups, including smokers and non-smokers aged 18 to 65.
Methods and analysis. A discrete choice experiment (DCE) will be conducted to assess preferences among users of ENDS, conventional cigarette smokers, and non-users in Argentina, Chile, and Colombia. The experiment will recruit between 500 and 1500 participants in each country through online commercial panels. The sample will include a range of individuals aged 18 to 65, with quotas ensuring the inclusion of both smokers and non-smokers.
Participants will be presented with a series of choice tasks, where they will make decisions based on various product attributes, including nicotine content, flavorings, health risks, and prices. The collected data will inform policy decisions by highlighting how these factors influence user preferences and perceptions across different demographic and national contexts. Insights from the DCE will provide valuable information for public health authorities in these countries, particularly regarding potential regulatory measures such as packaging policies, advertising restrictions, and product pricing.
Ethics and dissemination. Ethics approval to conduct this study has been obtained from the Ethics Committees of the Universidad Nacional de la Plata, Universidad del Rosario, the University of Nottingham, and Universidad Adolfo Ibáñez. Informed consent will be obtained from all participants, ensuring that participation is entirely voluntary and can be withdrawn at any time. Prior to participation, everyone will be required to complete an informed consent form.
External Link(s)

Registration Citation

Citation
Cruces, Guillermo, Guillermo Paraje and Paul Andres Rodriguez Lesmes. 2024. "Discrete choice experiment among cigarette consumers in Argentina, Chile and Colombia." AEA RCT Registry. October 21. https://doi.org/10.1257/rct.14568-2.0
Sponsors & Partners

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information
Experimental Details

Interventions

Intervention(s)
A discrete choice experiment (DCE) will be conducted to assess preferences among users of ENDS, conventional cigarette smokers, and non-users in Argentina, Chile, and Colombia. The experiment will recruit between 500 and 1500 participants in each country through online commercial panels. The sample will include a range of individuals aged 18 to 65, with quotas ensuring the inclusion of both smokers and non-smokers. Participants will be presented with a series of choice tasks, where they will make decisions based on various product attributes, including nicotine content, flavorings, health risks, and prices.
Intervention (Hidden)
Intervention Start Date
2024-11-18
Intervention End Date
2024-11-30

Primary Outcomes

Primary Outcomes (end points)
Willingness-to-pay for each attribute
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The present study seeks to address these issues through a DCE (Hensher et al., 2015), examining how product attributes like flavorings, health risks, and prices shape preferences across various demographic groups in Argentina, Chile, and Colombia. It aims to inform public health policymakers about how these characteristics impact user preferences, providing insights into the effects of regulatory measures such as packaging, advertising restrictions, and pricing, and supporting harm reduction and tobacco control strategies across different age groups and socio-cultural contexts.
Experimental Design Details
Randomization Method
Randomizations are done automatically in Limesurvey
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
Around 500 to 1500 per country
Sample size: planned number of observations
Around 500 to 1500 per country
Sample size (or number of clusters) by treatment arms
Each individual observes multiple versions of the attributes and products, so there is no specific treatment arm
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Comité Ético de Investigación de la Universidad Adolfo Ibáñez
IRB Approval Date
2024-09-16
IRB Approval Number
N/A
IRB Name
Comité de Ética en Investigación Uniersidad del Rosario - Sala de Ciencias Sociales
IRB Approval Date
2024-09-16
IRB Approval Number
DVO005 941-CS539
IRB Name
CEDLA Research Ethics Committee
IRB Approval Date
2024-08-20
IRB Approval Number
N/A
Analysis Plan

Analysis Plan Documents

Study protocol DCE South America e-cig 21102024.pdf

MD5:

SHA1:

Uploaded At: October 21, 2024

Post-Trial

Post Trial Information

Study Withdrawal

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information

Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials