SmokingNCT02750020
Policy-related Survey on Tobacco Control
An observational study of Smoking, run by The University of Hong Kong at 1 site in China.
Trial summary
Current study is the fourth wave of the policy-related survey on tobacco control in Hong Kong. It aims to investigate the level of public support on current and future tobacco control measures and taxation policies and to address the timely impacts of smoke-free policies, substantiate public support on further tobacco… Read more about this study
- Who is it for?
- Ages 15 years and older
- Conditions the study is for
- Smoking
- What is being tested?
- Questionnaire
- How many people
- 5,151 participants
- Where
- 1 siteChina
- Study dates
- Feb 2016to Sep 2016
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 15 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: All Hong Kong residents.
Who may be able to join
- Aged 15 and above
- Cantonese speakers
Who cannot join
- Unable to provide a consent form
- Speak language other than Cantonese
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Policy-Related Survey - Territory-wide Telephone Survey on Tobacco Control
Current study is the fourth wave of the policy-related survey on tobacco control in Hong Kong. It aims to investigate the level of public support on current and future tobacco control measures and taxation policies and to address the timely impacts of smoke-free policies, substantiate public support on further tobacco control measures and assist COSH in shaping policy direction for government. In total, 5000 subjects will be randomly selected for a telephone interview. The subjects will be categorized into three groups, i.e. never smokers (1667), ex-smokers (1667) and current smokers (1667). They will be required to answer a questionnaire via telephone. All data shall be collected using a Computer Assisted Telephone Interview (CATI) system, which allows real-time data capture and consolidation. All interviews shall be conducted anonymously. Analysis of survey data will aim to identify current opinion on tobacco control policies and implications for future policies. Analyses will be controlled for confounding variables as required by stratification into sub-groups based on important pre-defined characteristics and/or by multivariate analysis. Comparison with past trends and, where possible, extrapolation of future trends will be explored. Weights will be applied to adjust for the sex and age of Hong Kong population, and to handle the over-sampling issues of current smokers. The data analysis will be conducted by statisticians.
Read the detailed description
From 2013 to 2015, investigators conducted three waves of the policy-related survey on tobacco control. The surveys gathered information such as second hand smoking (SHS) exposure at home, in the workplace, and in various public places (e.g. bars/restaurants, door way of the buildings, streets, and bus stops), use of smoking cessation services, knowledge of smoking and quitting, and smoking prevalence; measured the impact of tobacco control policies such as tax increase in 2011 and 2014, expansion of smoke-free areas in 2009 and 2010, and pictorial health warnings on behavioral change of smokers and ex-smokers; collected the opinions on current policies such as smoke-free areas, pictorial health warnings and point of sale displays, and the opinions towards future policies such as tax increase, plain packaging, and tobacco endgame. The results of the three waves have been used by the Hong Kong Council On Smoking and Health (COSH) to advocate plain packaging, banning on point of sale displays, and increasing tobacco tax by 100% in the past 3 years.
In order to collect further information on issues related to tobacco control which should be addressed in future tobacco control measures in Hong Kong, COSH commissioned School of Public Health, HKU to conduct a fourth wave of the survey (2015/16). The current survey sought to use the Hong Kong data to update information on the prevalence of SHS and active smoking and its health effects, use of E-cigarettes, awareness of smoking cessation services and to identify the level of public support for current and future tobacco control measures as well as estimating the impact of existing policies.
- Conditions
- Smoking
- Being tested
- Questionnaire
- Keywords
- Telephone survey
- Medical subject headings
- Smoking
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
QuestionnaireOther
Current study is a retrospective telephone survey based on questionnaires. It aims to investigate the level of public support on current and future tobacco control measures and taxation policies and to address the timely impacts of smoke-free policies, substantiate public support on further tobacco control measures and assist COSH in shaping policy direction for government. The telephone survey will be conducted by a telephone survey agent under the monitor of applicants.
| Study group | Role | What they receive |
|---|---|---|
| never smokers | Around 1667 never smokers will be required to answer a questionnaire via telephone. Receives: Other: Questionnaire | |
| ex-smokers | Around 1667 ex-smokers will be required to answer a questionnaire via telephone. Receives: Other: Questionnaire | |
| current smokers | Around 1667 current smokers will be required to answer a questionnaire via telephone. Receives: Other: Questionnaire |
What is being measured
The primary outcome is the main question the study is designed to answer.
Attitudes to tobacco control policies
Telephone Survey
Measured: Outcome will be assessed immediately after subjects answer the questionnaire as this is a cross-sectional survey.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Apr 2016 (estimated)
- Study startFeb 2016
- Primary completionSep 2016
- Study completionSep 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SmokingStudies of the same condition, open and under way.
- More trials run by The University of Hong KongThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 5,151 participants (actual)
Sponsor and investigators
- Lead sponsor
- The University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Professor Lam Tai-Hing, The University of Hong Kong
- Investigators
- Tai Hing Lam, MD, Principal investigator, School of Public Health, the University of Hong Kong
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02750020
- Sponsor's protocol ID
- 2016 Policy Survey
- Status last verified
- Mar 2020
- First submitted
- 13 Apr 2016
- Last updated
- 30 Mar 2020
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Mar 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Policy-Related Survey - Territory-wide Telephone Survey on Tobacco Control
- ClinicalTrials.gov ID
- NCT02750020
- Acronym / sponsor ID
- 2016 Policy Survey
- Conditions
- Smoking
- Keywords
- Telephone survey
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 5,151 participants (actual)
- Lead sponsor
- The University of Hong KongUniversity, hospital or other
- Study start
- Feb 2016 (actual)
- Primary completion
- Sep 2016 (actual)
- Study completion
- Sep 2016 (actual)
- First posted
- 25 Apr 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Current study is the fourth wave of the policy-related survey on tobacco control in Hong Kong. It aims to investigate the level of public support on current and future tobacco control measures and taxation policies and to address the timely impacts of smoke-free policies, substantiate public support on further tobacco control measures and assist COSH in shaping policy direction for government. In total, 5000 subjects will be randomly selected for a telephone interview. The subjects will be categorized into three groups, i.e. never smokers (1667), ex-smokers (1667) and current smokers (1667). They will be required to answer a questionnaire via telephone. All data shall be collected using a Computer Assisted Telephone Interview (CATI) system, which allows real-time data capture and consolidation. All interviews shall be conducted anonymously. Analysis of survey data will aim to identify current opinion on tobacco control policies and implications for future policies. Analyses will be controlled for confounding variables as required by stratification into sub-groups based on important pre-defined characteristics and/or by multivariate analysis. Comparison with past trends and, where possible, extrapolation of future trends will be explored. Weights will be applied to adjust for the sex and age of Hong Kong population, and to handle the over-sampling issues of current smokers. The data analysis will be conducted by statisticians.
Detailed description
From 2013 to 2015, investigators conducted three waves of the policy-related survey on tobacco control. The surveys gathered information such as second hand smoking (SHS) exposure at home, in the workplace, and in various public places (e.g. bars/restaurants, door way of the buildings, streets, and bus stops), use of smoking cessation services, knowledge of smoking and quitting, and smoking prevalence; measured the impact of tobacco control policies such as tax increase in 2011 and 2014, expansion of smoke-free areas in 2009 and 2010, and pictorial health warnings on behavioral change of smokers and ex-smokers; collected the opinions on current policies such as smoke-free areas, pictorial health warnings and point of sale displays, and the opinions towards future policies such as tax increase, plain packaging, and tobacco endgame. The results of the three waves have been used by the Hong Kong Council On Smoking and Health (COSH) to advocate plain packaging, banning on point of sale displays, and increasing tobacco tax by 100% in the past 3 years.
In order to collect further information on issues related to tobacco control which should be addressed in future tobacco control measures in Hong Kong, COSH commissioned School of Public Health, HKU to conduct a fourth wave of the survey (2015/16). The current survey sought to use the Hong Kong data to update information on the prevalence of SHS and active smoking and its health effects, use of E-cigarettes, awareness of smoking cessation services and to identify the level of public support for current and future tobacco control measures as well as estimating the impact of existing policies.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| never smokers | – | Other: QuestionnaireAround 1667 never smokers will be required to answer a questionnaire via telephone. |
| ex-smokers | – | Other: QuestionnaireAround 1667 ex-smokers will be required to answer a questionnaire via telephone. |
| current smokers | – | Other: QuestionnaireAround 1667 current smokers will be required to answer a questionnaire via telephone. |
Who may qualify
- Ages
- 15 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- All Hong Kong residents.
Key inclusion criteria (2 listed)
- Aged 15 and above
- Cantonese speakers
Key exclusion criteria (2 listed)
- Unable to provide a consent form
- Speak language other than Cantonese
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| QuestionnaireCurrent study is a retrospective telephone survey based on questionnaires. It aims to investigate the level of public support on current and future tobacco control measures and taxation policies and to address the timely impacts of smoke-free policies, substantiate public support on further tobacco control measures and assist COSH in shaping policy direction for government. The telephone survey will be conducted by a telephone survey agent under the monitor of applicants. | Other | current smokers, ex-smokers, never smokers |
Primary outcome
Attitudes to tobacco control policies
Time frame: Outcome will be assessed immediately after subjects answer the questionnaire as this is a cross-sectional survey.
Telephone Survey
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Mar 2020.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Tai Hing Lam, MD principal investigator
School of Public Health, the University of Hong Kong
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Smoking, run by The University of Hong Kong at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 30 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Attitudes to tobacco control policies (time frame: Outcome will be assessed immediately after subjects answer the questionnaire as this is a cross-sectional survey.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Mar 2020.