Tobacco control Not Applicable
Conditions
Interventions
Participants will be recruited through a research agency, LegerWeb from across Canada. Participants will not be informed of the true aim of the study at the beginning.
Participants will be asked to
Sponsors
University of Cambridge
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Aged 19 years and over 2. Smoke factory-made cigarettes 3. Have smoked at least 100 cigarettes in their lifetime 4. Currently smoke 10 or more cigarettes a day on every day of the week 5. Normally purchase cigarettes in packs of 25 6. Use a brand or brand variant in which cigarettes are available in pack sizes of 20 as well as 25 in a shop convenient to them 7. Live anywhere in Canada outside of British Columbia, Northwest Territories, Nunavut and Yukon. (The province of British Columbia only sells packs of 20 cigarettes. All other provinces sell packs of both 20s and 25s) 8. Able to read and write sufficient English to complete all study procedures 9. Willing to record on each cigarette pack dates when the pack was opened and when finished 10. Willing to send photos for 4 weeks of their completed cigarette packs 11. Willing to purchase and smoke their usual brand variant in packs of 20 for 2 weeks
Exclusion criteria
Exclusion criteria: 1. Pregnant women and women trying to become pregnant 2. Intend to quit smoking in the next 3 months 3. Used e-cigarettes weekly over the past month, and intend to continue 4. Smoked roll-your-own (RYO) cigarettes once a week or more over the past month and intend to continue 5. Normally transfer cigarettes into a case 6. Do not usually buy their own cigarettes 7. Live in the same household as someone who has enrolled in the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The average number of cigarettes smoked per day by participants during the two 2-week periods, calculated by adding up all of the cigarettes smoked within each study period and dividing by 14 to obtain a measure of daily consumption. The number of cigarettes smoked will be assessed from photographs participants take of their empty cigarette packs labelled with stickers with the following information: 1. Date pack finished 2. Number of cigarettes smoked by participant from this pack (excluding those given away or not consumed by the participant for any other reason) 3. Number of cigarettes smoked by participant not from that pack while that pack has been open (e.g. given to them by a friend) | — |
Secondary
| Measure | Time frame |
|---|---|
| Motivation to stop smoking measured using the Motivation to Stop Scale (MTSS) with responses to the question: Which of the following describes you? Responses range from (1) I don’t want to stop smoking to (7) I REALLY want to stop smoking and intend to in the next month. Assessed at two timepoints: at the end of the intervention period and at the end of the control period. | — |
Countries
Canada, England, United Kingdom
Outcome results
None listed