Effectiveness of an Online Quiz in Promoting Tobacco-Related Knowledge, Attitudes, and Behaviours Among Primary Students

Not Applicable

Recruiting

• Conditions: Tobacco Prevention

• Registration Number: NCT06913166
• Lead Sponsor: The University of Hong Kong

Brief Summary

The goal of this modified pilot RCT is to evaluate the effects of the intervention (online platform) on tobacco-related knowledge, attitudes and intentions on smoking among local primary 5-6 school students. The main questions it aims to answer are:

* Is the intervention effective in improving tobacco-related knowledge (including alternative smoking products (ASPs) and tobacco control development in the world and Hong Kong)?

* Is the intervention effective in improving tobacco-related attitudes and intentions (including ASPs and tobacco control development in the world and Hong Kong)?

Researchers will compare the questionnaire results from students to see if intervention groups (students doing tobacco-related questions on the online quiz platform) will have better tobacco-related knowledge, higher anti-tobacco attitudes and lower intention to smoke.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2025-03-19
• Study First Submitted QC: 2025-03-29
• Status Verified: 2025-04
• Study First Posted: 2025-04-06
• Study Start: 2025-04-11
• Last Update Submitted: 2025-04-16
• Last Update Posted: 2025-04-22
• Primary Completion: 2025-08-31
• Study Completion: 2025-09-30

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 700

Inclusion Criteria

• Primary 5-6 students from local primary schools
• Able to read and communicate in Chinese
• Have a digital device for online access to the quiz game at home

Exclusion Criteria

• None

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Effectiveness of intervention on tobacco-related knowledge (including ASPs and tobacco control development in the world and Hong Kong)	Right before the intervention and at 8-12th days	Students reported their opinions towards 5 statements in pre and post tests: \[Pre-test\] 1) Smoking causes wrinkles to form on the skin; 2) Third-hand smoke can remain on surfaces for weeks; 3) E-cigarettes can help with smoking cessation; 4) Tobacco companies aim to prevent teenagers from smoking; 5) The Hong Kong government has already banned the sale of e-cigarettes.; \[Post-test\]; 1) Smoking can cause hair loss; 2) Opening windows or turning on a fan can eliminate the effects of thirdhand smoke; 3) E-cigarettes avoid the problem of secondhand smoke; 4) Tobacco companies hire influencers to promote tobacco products; 5) The Hong Kong government has already banned the sale of heated tobacco products.; Students' knowledge will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Item scores will be recoded as appropriate, so that higher scores consistently reflect better knowledge.
Effectiveness of intervention on tobacco-related attitudes (including ASPs and tobacco control development in the world and Hong Kong)	Right before the intervention and at 8-12th days.	Students will report their opinions towards 5 statements: 1) Smoking is a selfish behavior; 2) I hope to avoid exposure to secondhand smoke; 3) Vaping is a trend.; 4) Tobacco companies use different methods to attract people to smoke; 5) The government should prohibit people from smoking while walking.; Students' attitudes will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Item scores will be recoded as appropriate, so that higher scores consistently reflect more negative attitudes.
Effectiveness of intervention on tobacco-related intentions (including ASPs and tobacco control development in the world and Hong Kong)	Right before the intervention and at 8-12th days.	Students were asked: If one of your good friends offers you a traditional cigarette, e-cigarette or heated tobacco product, ask you to have a few puffs, and no one will know about this as no more smoking in the future. Will you use them?; Students' intention will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Definitely no) to 5 (Definitely yes). Lower scores indicate a lower intention to use ASPs.

Secondary Outcome Measures

Name	Time	Method
Adherence to the 5-day intervention	At 8-12th days	Students will report their adherence to the 5-day intervention. This information will be extracted directly from online quiz log of the participants via the backend of the system.
Satisfaction of students and parents towards intervention	From 2-8 weeks after the completion of the post-questionnaire	These will be assessed using a qualitative interview for a subset of the participants and their family (10 students and parents)
Effectiveness of intervention on SHS and THS exposure at home	Right before the intervention and at 8-12th days.	Students were asked: In the past 7 days, how many days (0-7) 1) was someone smoking next to you when you were at home? 2) do you smell secondhand smoke drifting in from outside when you were at home? 3) was someone smoking next to you when you were outside home? 4) you can smell cigarette smoke on objects or people when you are at home and no one is smoking, and you don't see any smoke?; Each item was rated on an 8-point scale ranging from 0 (0 days) to 7 (7 days), with higher scores indicating more frequent exposure to secondhand smoke (i.e., a worse outcome).
Effectiveness of intervention on tobacco use	Right before the intervention and at 8-12th days.	Students were asked: 1) Which of the following tobacco products have you ever used? 2) In the past 30 days, which of the following tobacco products have you used?

Trial Locations

Locations (1)

Local primary schools; 🇭🇰 Hong Kong, Hong Kong