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Impact of Positive Mental Vs. Physical Health Messaging on Motivation to Stop Smoking

What is the Effect of Presenting Evidence of the Mental Vs Physical Health Benefits of Quitting Smoking on Motivation to Stop Smoking? an Online Randomised Controlled Experiment

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06762756
Enrollment
631
Registered
2025-01-08
Start date
2022-09-01
Completion date
2023-02-28
Last updated
2025-01-09

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

Conditions

Smoking, Tobacco

Keywords

Smoking, Smoking cessation, Public health, Mental health, Tobacco warning labels

Brief summary

This study tested whether positive messages on tobacco packaging about the mental health benefits of quitting smoking could help motivate people to stop smoking. It compared three types of labels: ones focusing on mental health benefits, ones focusing on physical health benefits, and blank labels. The experiment involved 631 people who smoke who were randomly shown one of these label types on an online survey platform. Participants' motivation to quit smoking was measured before and after viewing the labels.

Interventions

BEHAVIORALMessages on tobacco packaging labels

The intervention was messages of the benefits of smoking cessation formatted as tobacco packaging labels with three conditions. Participants viewed the messages online. There were four messages in each condition. The intervention was informed by relevant patient and public groups.

Sponsors

Katherine Sawyer
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Investigator, Outcomes Assessor)

Intervention model description

The intervention was tobacco warning labels with three conditions: i) positive mental health labels; ii) positive physical health labels; iii) blank labels. Participants were randomly allocated to one label condition using Qualtrics embedded randomisation function, stratified by mental health status, and viewed four labels for at least 10 seconds each.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Self-reported weekly tobacco smokers 2. Aged at least 18 years 3. Could read English

Exclusion criteria

Did not smoke tobacco at least weekly

Design outcomes

Primary

MeasureTime frameDescription
Motivation to stop smokingAt baseline and follow up immediately after viewing the labelsMotivation to stop smoking was measured using the Motivation to Stop Scale (MTSS). The MTSS asks participants Which of the following best describes you? with the following ordinal scale: 1) I don't want to stop smoking; 2) I think I should stop smoking but don't really want to; 3) I want to stop smoking but haven't thought about when; 4) I REALLY want to stop smoking but I don't know when I will; 5) I want to stop smoking and hope to soon; 6) I REALLY want to stop smoking and intend to in the next 3 months; 7) I REALLY want to stop smoking and intend to in the next month.

Secondary

MeasureTime frameDescription
Quitting Self-EfficacyMeasured at baseline and follow up immediately after viewing the labelsTo measure participants' self-efficacy to quit smoking, participants responded to the questions Overall, how confident are you that you can stop smoking within the next month? on a 5-point scale 1 ('not at all') to 5 ('completely confident') and For me cutting down on the number of cigarettes that I smoke in the next month would be…. On a scale off 1 ('very difficult') to 5 ('very easy'). The mean score across the two items was calculated, with a higher score indicating higher self-efficacy
Smoking BeliefsMeasured at baseline and follow up immediately after viewing the labelsParticipants rated their agreement to the statements smoking helps people relax, smoking helps to reduce stress, smoking helps to keep weight down smoking increases social comfort those who smoke are more popular and second hand smoke is not harmful using a 5-point scale from 1 ('not at all') to 5 ('a lot'). The mean score across the five items was calculated, with a higher score indicating more favourable beliefs towards smoking
Intention to QuitMeasured at baseline and follow up immediately after viewing the labelsParticipants were asked their intention to quit smoking Are you planning to quit smoking within the next month? using a 10-point visual analogue scale, where 1 indicates low intention to quit and 10 indicates higher intention to quit smoking
Affective ReactionsMeasured at follow up immediately after viewing the labelsTo measure affective reactions to the health labels we used the Self-Assessment Manakin (SAM, (Bradley & Lang, 1994)). Participants rated their affective reactions: valence, arousal, and dominance on a 9-point visual analogue scale. Scales for valence range from 1 'unpleasant' to 9 'pleasant', arousal ranged from 1 'calm' to 9 'excited', and dominance ranged from 1 'controlled' to 9 'in control' with 5 as neutral for all items
BelievabilityMeasured at follow up immediately after viewing the labelsPerceptions of believability of the health label were measured using the question How believable are these health labels?, participants rated this on a 5-point scale from 1 ('not at all') to 5 ('a lot')
AttentionMeasured at follow up immediately after viewing the labelsParticipants rated two statements 'these labels are worth remembering' and 'these labels grabbed my attention' on a 5-point scale from 1 ('not at all') to 5 ('a lot'), mean score across the two items was calculated, with a higher score indicating greater attention

Countries

United Kingdom

Outcome results

None listed

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