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Graphic Messages to Prevent E-Cigarette Use Among Black and Latino Adolescents

Graphic Messages to Prevent E-Cigarette Use Among Latino and African American Adolescents: A Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04899999
Enrollment
362
Registered
2021-05-25
Start date
2021-08-06
Completion date
2021-12-15
Last updated
2025-08-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vaping

Brief summary

The aim of this study is to determine if graphic messages prevent future vaping use among African American and Latino adolescents. The images have been developed in a user-design model and include four main themes: health reward, financial reward, self-efficacy, and social norms. We will assess pre- and post-exposure reactions on likelihood of future vaping among African American and Latino adolescents.

Interventions

BEHAVIORALFinancial reward graphic message

Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Vaping leads to nothing. Don't let your money vaporize away.

BEHAVIORALHealth reward graphic message

Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Dying for a vape? It hurts more than you know.

BEHAVIORALSelf-efficacy graphic message

Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Vaping companies are targeting Black and Latino teens. Your life matters. Don't let them take it away.

BEHAVIORALSocial norms graphic message

Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Just because vaping is common, doesn't mean it's cool. Stay woke. Don't smoke.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
University of Rochester
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Years to 17 Years
Healthy volunteers
Yes

Inclusion criteria

* self-identify as African American/Black and/or Hispanic/Latino * know how to read and speak English and/or Spanish * have never used e-cigarettes * have access to a device that will be able to connect to the online survey

Exclusion criteria

* not identifying as African American/Black and/or Hispanic/Latino * using e-cigarettes

Design outcomes

Primary

MeasureTime frameDescription
Change in Percentage of Participants Susceptible to Future Vapingbaseline to post-intervention, approximately 1 daySusceptibility to future vaping was assessed before and after exposure to the graphic messages. Informed by prior foundational research on youth electronic cigarette use, susceptibility was measured with three items assessing curiosity, intent, and social influence. Participants were asked, Have you ever been curious about using e-cigarettes/vaping?, Do you think that you will use e-cigarettes/vape in the next 12 months?, and If one of your best friends were to offer you an e-cigarette/electronic vapor product, would you use it? (1 = Definitely not to 4 = Definitely yes). Responses were dichotomized: participants were categorized as susceptible if they answered anything other than Definitely not to at least one item. The percentage of susceptible participants was calculated before and after exposure; change in percentage reflects the difference.

Secondary

MeasureTime frameDescription
Percentage of Participants Satisfied or Very Satisfied With the Graphic MessageDay 1Satisfaction with the assigned vaping prevention graphic message was assessed using the item: How satisfied are you with the image? Responses were recorded on a 5-point Likert scale from 1 = Extremely unsatisfied to 5 = Extremely satisfied. Participants selecting 5 (Extremely satisfied) were categorized as satisfied. The percentage of satisfied participants was calculated per group. Higher percentages indicate greater satisfaction with the message.
Percent of Participants Who Would Recommend the Graphic Message to a FriendDay 1participants were asked, Would you recommend this picture to a friend? with response options of Yes or No. The percentage of participants who responded Yes was calculated per group. Higher percentages indicate greater endorsement of the message.

Countries

United States

Participant flow

Participants by arm

ArmCount
Financial Reward Graphic Message
Financial reward graphic message: Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Vaping leads to nothing. Don't let your money vaporize away.
93
Health Reward Graphic Message
Health reward graphic message: Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Dying for a vape? It hurts more than you know.
88
Self-efficacy Graphic Message
Self-efficacy graphic message: Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Vaping companies are targeting Black and Latino teens. Your life matters. Don't let them take it away.
92
Social Norms Graphic Message
Social norms graphic message: Graphic image will be shared with the participants online once in either English or Spanish depending on their language of preference. Image includes the following text: Just because vaping is common, doesn't mean it's cool. Stay woke. Don't smoke.
89
Total362

Baseline characteristics

CharacteristicTotalFinancial Reward Graphic MessageHealth Reward Graphic MessageSelf-efficacy Graphic MessageSocial Norms Graphic Message
Age, Continuous15.00 years
STANDARD_DEVIATION 1.49
15.04 years
STANDARD_DEVIATION 1.61
15.06 years
STANDARD_DEVIATION 1.35
15.00 years
STANDARD_DEVIATION 1.46
14.89 years
STANDARD_DEVIATION 1.52
Race/Ethnicity, Customized
Black/African American
181 Participants48 Participants42 Participants46 Participants45 Participants
Race/Ethnicity, Customized
Hispanic/Latino
181 Participants45 Participants46 Participants46 Participants44 Participants
Region of Enrollment
Puerto Rico
18 participants4 participants7 participants6 participants1 participants
Region of Enrollment
United States
344 participants89 participants81 participants86 participants88 participants
Sex: Female, Male
Female
124 Participants38 Participants34 Participants26 Participants26 Participants
Sex: Female, Male
Male
235 Participants54 Participants54 Participants65 Participants62 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 930 / 880 / 920 / 89
other
Total, other adverse events
0 / 930 / 880 / 920 / 89
serious
Total, serious adverse events
0 / 930 / 880 / 920 / 89

Outcome results

Primary

Change in Percentage of Participants Susceptible to Future Vaping

Susceptibility to future vaping was assessed before and after exposure to the graphic messages. Informed by prior foundational research on youth electronic cigarette use, susceptibility was measured with three items assessing curiosity, intent, and social influence. Participants were asked, Have you ever been curious about using e-cigarettes/vaping?, Do you think that you will use e-cigarettes/vape in the next 12 months?, and If one of your best friends were to offer you an e-cigarette/electronic vapor product, would you use it? (1 = Definitely not to 4 = Definitely yes). Responses were dichotomized: participants were categorized as susceptible if they answered anything other than Definitely not to at least one item. The percentage of susceptible participants was calculated before and after exposure; change in percentage reflects the difference.

Time frame: baseline to post-intervention, approximately 1 day

ArmMeasureValue (NUMBER)
Financial Reward Graphic MessageChange in Percentage of Participants Susceptible to Future Vaping1.1 percentage of participants
Health Reward Graphic MessageChange in Percentage of Participants Susceptible to Future Vaping-5.7 percentage of participants
Self-efficacy Graphic MessageChange in Percentage of Participants Susceptible to Future Vaping-2.3 percentage of participants
Social Norms Graphic MessageChange in Percentage of Participants Susceptible to Future Vaping-3.2 percentage of participants
Secondary

Percentage of Participants Satisfied or Very Satisfied With the Graphic Message

Satisfaction with the assigned vaping prevention graphic message was assessed using the item: How satisfied are you with the image? Responses were recorded on a 5-point Likert scale from 1 = Extremely unsatisfied to 5 = Extremely satisfied. Participants selecting 5 (Extremely satisfied) were categorized as satisfied. The percentage of satisfied participants was calculated per group. Higher percentages indicate greater satisfaction with the message.

Time frame: Day 1

ArmMeasureValue (NUMBER)
Financial Reward Graphic MessagePercentage of Participants Satisfied or Very Satisfied With the Graphic Message68.8 percentage of participants
Health Reward Graphic MessagePercentage of Participants Satisfied or Very Satisfied With the Graphic Message69.3 percentage of participants
Self-efficacy Graphic MessagePercentage of Participants Satisfied or Very Satisfied With the Graphic Message34.7 percentage of participants
Social Norms Graphic MessagePercentage of Participants Satisfied or Very Satisfied With the Graphic Message56.1 percentage of participants
Secondary

Percent of Participants Who Would Recommend the Graphic Message to a Friend

participants were asked, Would you recommend this picture to a friend? with response options of Yes or No. The percentage of participants who responded Yes was calculated per group. Higher percentages indicate greater endorsement of the message.

Time frame: Day 1

ArmMeasureValue (NUMBER)
Financial Reward Graphic MessagePercent of Participants Who Would Recommend the Graphic Message to a Friend90.3 percentage of participants
Health Reward Graphic MessagePercent of Participants Who Would Recommend the Graphic Message to a Friend94.3 percentage of participants
Self-efficacy Graphic MessagePercent of Participants Who Would Recommend the Graphic Message to a Friend70.6 percentage of participants
Social Norms Graphic MessagePercent of Participants Who Would Recommend the Graphic Message to a Friend80.8 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026