Promoting smoking cessation on the site via Quit to Win 2010

ISRCTN ISRCTN73730513
DOI https://doi.org/10.1186/ISRCTN73730513
Secondary identifying numbers N/A
Submission date
06/07/2012
Registration date
31/07/2012
Last edited
16/06/2014
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
This project aims to promote quitting smoking in the community. The specific aims are to find out how well the Quit to Win Contest works in attracting smokers to quit smoking in the community, and test the effectiveness of on-site brief smoking cessation advice on quit rate and change in smoking behaviors among smokers who join the Quit to Win Contest.

Who can participate?
Adults, who smoked at least 1 cigarette per day in the past 6 months, and able to communicate in Cantonese and read Chinese.

What does the study involve?
Participants are randomly allocated to one of two groups. We set up 20 promotional booths to publicize the Quit to Win Contest and to recruit participants in selected shopping malls in the community for about two months. Smokers were invited to visit the booth and participate in the Quit to Win Contest and study. A total of 20 sessions was planned for recruitment in the study. Each of the 20 sessions was randomly allocated to intervention or control group. All participants (including the 2 study groups and the non-study group) were followed up at 6-month after the initial recruitment. Participants reported to have stopped smoking at 6 months were invited for smoking status assessment. Biochemical validation of measuring exhaled CO and salivary cotinine levels were used for the assessment. Participants who passed the biochemical tests were offered the opportunity to enter into a lucky draw. At the end of the study, we will compare the 7-day point prevalence of abstinent from smoking and the reduced cigarette consumption by at least half, and quit attempts across the two study groups.

What are the possible benefits and risks of participating?
Since participants received a brief telephone counseling from a nurse or receiving mobile phone messages, there will be no immediate direct benefit to those taking part. There was also no potential risk to the participants.

Where is the study run from?
Daily smokers were recruited in the shopping malls of 14 districts in Hong Kong.

When is study starting and how long is it expected to run for?
The study was launched from June 2009 to August 2009.

Who is funding the study?
The Hong Kong Council of Smoking and Health, Hong Kong.

Who is the main contact?
Professor Sophia Siu Chee Chan, nssophia@hku.hk
Professor David Wong, cnwong@hku.hk

Contact information

Prof Sophia Siu Chee Chan
Scientific

4/F, William M.W. Mong Block
21 Sassoon Road
Pokfulam
-
-
Hong Kong

Study information

Study designCluster randomized trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titlePromoting smoking cessation on the site via Quit to Win 2010: a cluster randomized trial
Study objectivesThe study is a cluster randomized trial to evaluate the effectiveness of an on-site brief smoking cessation advice comparing to self-help materials to smokers who join the Quit to Win Contest 2010 organized by The Hong Kong Council on Smoking and Health (COSH). The aims are to promote smoking cessation in the community, and to assess the effectiveness of minimal intervention on smoking cessation through the Quit to Win Contest. We hypothesize that the on-site brief smoking cessation advice will lead to significant increases in rates of smoking cessation in the intervention group than the control group.

The specific objectives of the study are:
1. To test the effectiveness of the on-site brief smoking cessation advice on quit rate and change in smoking behaviors among smokers who join the Quit to Win Contest
2. To evaluate the impacts of the Quit to Win Contest in attracting smokers to quit smoking.
Ethics approval(s)Institutional Review Board of the University of Hong Kong/ Hospital Authority Hong Kong West Cluster, ref: UW 10-239
Health condition(s) or problem(s) studiedPromoting smoking cessation
InterventionIntervention group:
Study participants who are randomized to the intervention group will receive a proactive brief smoking cessation advice from our trained smoking cessation counselor on the study site after consent. They will receive advice on quitting smoking and specific warning on the hazardous effects of smoking on health will be highlighted. A hotline number will be given to the participants if they need further help. The brief advice will last about 5 minutes. They will also receive the COSH self-help materials at the recruitment sites.

Control group:
Study participants who are randomized to the control group will not receive any quitting assistance other than the self-help materials from COSH at the recruitment sites.

Non-trial group:
For those who join the Quit to Win Contest but either refused or ineligible for the cluster trial will also receive self-help material on smoking cessation. They will not be treated as subjects of the cluster randomized trial.
Intervention typeOther
Primary outcome measureCluster randomized trial of smoking cessation interventions:
Self-reported 7-day point prevalence (pp) quit rate at 6 months.

Process evaluation of Quit to Win Contest:
1. Number of people visited the exhibition
2. Number of leaflets distributed
3. Number of people visited the smoking cessation booth
4. Number of smoking cessation self-help materials (for example: booklets and CD ROM) distributed
5. Number of people interested to join the Quit to Win Contest
6. Number of eligible participants
7. Number of eligible participants enrolled into the Contest
8. Number of eligible participants consented to the RCT study
Secondary outcome measures1. Biochemical validated quit rate at 6 months
2. Rate of smoking reduction by at least of half
3. Number of quit attempts at 6 months
Overall study start date19/06/2010
Completion date30/08/2010

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants964
Key inclusion criteria1. Hong Kong residents aged 18 or above
2. Smoke at least one cigarette per day in the past 6 months
3. Able to communicate in Cantonese and read Chinese
Key exclusion criteria1. Smokers who are psychologically or physically unable to communicate
2. Currently following other forms of smoking cessation programme
Date of first enrolment19/06/2010
Date of final enrolment30/08/2010

Locations

Countries of recruitment

  • Hong Kong

Study participating centre

4/F, William M.W. Mong Block
-
-
Hong Kong

Sponsor information

Hong Kong Council on Smoking and Health (Hong Kong)
Government

Unit 4402-03, 44/F
Hopewell Centre
183 Queen’s Road East
Wanchai
-
-
Hong Kong

Website http://www.smokefree.hk/
ROR logo "ROR" https://ror.org/05enx7587

Funders

Funder type

Government

Hong Kong Council on Smoking and Health (Hong Kong)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan