ClinicalTrials.gov
ClinicalTrials.gov Menu

Policy-related Survey on Tobacco Control

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT02750020
Recruitment Status : Recruiting
First Posted : April 25, 2016
Last Update Posted : November 6, 2017
Sponsor:
Information provided by (Responsible Party):
Professor Lam Tai-Hing, The University of Hong Kong

Brief 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 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.

Condition or disease Intervention/treatment
Smoking Other: Questionnaire

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 Type : Observational
Estimated Enrollment : 5000 participants
Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Policy-Related Survey - Territory-wide Telephone Survey on Tobacco Control
Study Start Date : February 2016
Estimated Primary Completion Date : November 2017
Estimated Study Completion Date : December 2017

Group/Cohort Intervention/treatment
never smokers
Around 1667 never smokers will be required to answer a questionnaire via telephone.
Other: Questionnaire
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.

ex-smokers
Around 1667 ex-smokers will be required to answer a questionnaire via telephone.
Other: Questionnaire
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.

current smokers
Around 1667 current smokers will be required to answer a questionnaire via telephone.
Other: Questionnaire
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.




Primary Outcome Measures :
  1. 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



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   15 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
All Hong Kong residents.
Criteria

Inclusion Criteria:

  • Aged 15 and above
  • Cantonese speakers

Exclusion Criteria:

  • Unable to provide a consent form
  • Speak language other than Cantonese

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02750020


Contacts
Contact: Tai Hing Lam, MD +852 3917 9287 hrmrlth@hku.hk

Locations
China
Public Opinion Programme, the University of Hong Kong Recruiting
Hong Kong, China
Contact: Joyce Chan    +852 3917 7700    joyce.chan@hkupop.hku.hk   
Sponsors and Collaborators
The University of Hong Kong
Investigators
Principal Investigator: Tai Hing Lam, MD School of Public Health, the University of Hong Kong

Responsible Party: Professor Lam Tai-Hing, Sir Robert Kotewall Professor in Public Health, The University of Hong Kong
ClinicalTrials.gov Identifier: NCT02750020     History of Changes
Other Study ID Numbers: 2016 Policy Survey
First Posted: April 25, 2016    Key Record Dates
Last Update Posted: November 6, 2017
Last Verified: October 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by Professor Lam Tai-Hing, The University of Hong Kong:
Telephone survey