An interventional study of Social norms campaign in Tobacco Use, sponsored by The University of Hong Kong. Status unknown at 1 site in Hong Kong. Open to participants aged 11 Years to 20 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-05-03.
Sponsored by The University of Hong Kong · Not applicable, Interventional, and Prevention
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This study will examine the effectiveness of a social norms campaign in correcting smoking misperceptions, reducing smoking susceptibility and changing smoking-related behaviours in Hong Kong adolescents.
The study involves a behavioural intervention with social norms approaches to correct smoking misperceptions, reduce smoking susceptibility and change smoking-related behaviours in Hong Kong adolescents. A 2-arm stratified clustered randomised controlled trial (RCT) will be conducted to evaluate the effectiveness of the intervention. A total of 18 secondary schools will be randomly selected from the 5 regions in Hong Kong and invited to the RCT. The schools will then be randomly allocated to intervention or control group in the ratio of 1:1. Secondary 1 to 5 (US Grade 7 to 11) students will be invited. Students in both intervention and control group will complete a baseline survey, and the intervention group will receive the intervention after the baseline. Intervention materials includes posters and table tents at school, flyers to students, and online banner on school website. The intervention adopts social norms approaches, and will highlight the prevalence of adolescents who do not smoke and have no intention to smoke. It will last for 2 months. Both intervention and control groups will complete follow-up surveys at 3 and 9 months. The control group will receive the intervention materials after the RCT.
421 studies on the registry are indexed under Tobacco Use; 83 are open to participants now.
This study's planned enrollment of 12,868 is above the median of 127 across 352 interventional studies indexed under Tobacco Use.
Browse Tobacco Use studies →The University of Hong Kong is the lead sponsor of 1,292 studies on the registry; 348 are open to participants now.
Of its 9 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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Exclusion Criteria:
Students in the schools assigned to the intervention group will receive the intervention after the baseline survey. The intervention will be a social norms campaign involving posters, table tents, flyers and an online banner.
Behavioral: Social norms campaign
Students in the schools assigned to the control group will not receive anything during the randomised controlled trial. They will receive the intervention materials after the trial.
Intervention messages will mainly highlight the prevalence of Hong Kong adolescents who do not smoke cigarettes and have no intention to smoke cigarettes. The messages will be conveyed to students through posters, table tents, flyers and an online banner. Posters will be posted at prominent places in schools, table tents will be placed in school canteens, flyers will be distributed to students, and the online banner will be placed at the school website. The intervention will last for 2 months.
Perceived adolescent smoking prevalence
Perceived prevalence of current smoking secondary school students in Hong Kong
Time frame: At the time of survey
Smoking susceptibility
Intention to smoke in the next 12 months, if good friends are smoking in front, and if a good friend offered a cigarette
Time frame: At the time of survey
Smoking intensity
Number of smoking days in the past 30 days, average daily cigarette consumption
Time frame: Past 30 days
Intention to quit
Intention to quit
Time frame: At the time of survey
Quit attempts
Number of quit attempts
Time frame: Past 3 months
Plan to share: No
No publications or documents are linked to this record.
Started Oct 2017 (actual). Primary completion is estimated for Jul 2018, 9 months after the start.
Of 167 non-industry interventional studies with no phase under Tobacco Use, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 41. This study's planned 9 months is below that.
Counting every sponsor, half of 223 studies reached it within 16 months; a quarter within 5 and three quarters within 33.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in May 2018. You cannot join it, but the record below documents what was studied.
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