Address Tobacco Use Among Adolescents in Hong Kong

Tobacco Use Clinical Trial

Official title:

Changing Social Norms Around Smoking: A Cluster Randomized Controlled Trial to Address Tobacco Use Among Adolescents in Hong Kong

Clinical Trial Details — Status: Enrolling by invitation

Administrative data

• NCT number: NCT03264144
• Other study ID #: 17629016
• Status: Enrolling by invitation
• Phase: N/A
• Start date: October 13, 2017
• Est. completion date: July 2018

Study information

• Verified date: May 2018
• Source: The University of Hong Kong
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Description:

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.

Recruitment information / eligibility

• Status: Enrolling by invitation
• Enrollment: 12868
• Est. completion date: July 2018
• Est. primary completion date: July 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 11 Years to 20 Years

Eligibility

Inclusion Criteria:

• Local secondary schools that cover grades 1-6

Exclusion Criteria:

• International secondary schools

• Special schools for adolescents with visual, hearing or other physical impairments or disabilities

Related Conditions & MeSH terms

• Tobacco Use

Intervention

Behavioral:
• Social norms campaign
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.

Locations

Country	Name	City	State
Hong Kong	Local secondary schools	Hong Kong

Sponsors (1)

Lead Sponsor	Collaborator
The University of Hong Kong

Country where clinical trial is conducted

Hong Kong, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Perceived adolescent smoking prevalence	Perceived prevalence of current smoking secondary school students in Hong Kong	At the time of survey
Primary	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	At the time of survey
Secondary	Smoking intensity	Number of smoking days in the past 30 days, average daily cigarette consumption	Past 30 days
Secondary	Intention to quit	Intention to quit	At the time of survey
Secondary	Quit attempts	Number of quit attempts	Past 3 months