Changing Social Norms Around Smoking: A Cluster Randomized Controlled Trial to Address Tobacco Use Among Adolescents in Hong Kong
试验速览
- 阶段
- 不适用
- 入组人数
- 12,868
- 试验地点
- 1
- 主要终点
- Smoking susceptibility
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 11 Years 至 20 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Local secondary schools that cover grades 1-6
排除标准
- •International secondary schools
- •Special schools for adolescents with visual, hearing or other physical impairments or disabilities
研究组 & 干预措施
Intervention
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.
干预措施: Social norms campaign (Behavioral)
Control
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.
结局指标
主要结局
Smoking susceptibility
时间窗: At the time of survey
Intention to smoke in the next 12 months, if good friends are smoking in front, and if a good friend offered a cigarette
Perceived adolescent smoking prevalence
时间窗: At the time of survey
Perceived prevalence of current smoking secondary school students in Hong Kong
次要结局
- Intention to quit(At the time of survey)
- Smoking intensity(Past 30 days)
- Quit attempts(Past 3 months)
研究者
Dr. Daniel Sai-Yin Ho
Associate Professor
The University of Hong Kong