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Promoting Tobacco Control and Smoking Cessation in Workplaces [Phase I]

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ClinicalTrials.gov Identifier: NCT02179424
Recruitment Status : Completed
First Posted : July 1, 2014
Results First Posted : December 23, 2016
Last Update Posted : December 23, 2016
Sponsor:
Collaborator:
Lok Sin Tong Benevolent Society, Kowloon
Information provided by (Responsible Party):
Professor Lam Tai-Hing, The University of Hong Kong

Brief Summary:

Previous research shows a significant proportion of smokers work in full-time employment. Given that the majority of smokers do not aware of the smoking cessation services available in Hong Kong, implementing smoking cessation policy in the workplaces may assist a considerable number of smokers to stop or reduce smoking.

This study aims to:

  1. examine the employers' knowledge, attitudes and practices in promoting smoking cessation in workplace.
  2. test the effectiveness of a brief and an intensive smoking cessation interventions to help workers stop smoking

In Phase I of this study, a large scale cross-sectional survey will be conducted to 3000 corporate companies in Hong Kong. The questionnaire will examine the employers' knowledge, attitudes and practices in promoting smoking cessation in the workplaces.

In Phase II, a longitudinal study will be conducted to evaluate the effectiveness of a smoking cessation intervention offered by the Department of Psychology, the University of Hong Kong. Smokers from the participating companies will be interviewed before the intervention at baseline, immediately after the intervention, and at 1-, 4-, 12-, 26- and 52-week post-intervention follow-ups.

The follow-up assessments will consist of a biochemical validation for the self-reported quitters who report quitting in the past 7 days via exhaled carbon monoxide and saliva cotinine concentration tests. Participants' smoking behaviour, knowledge on smoking and satisfaction of the smoking cessation services will also be evaluated.

It is hypothesized that the smoking cessation intervention helps workers stop smoking. Employers' knowledge and attitudes are positively associated with the practices in promoting smoking cessation in workplace.

Process evaluation: Qualitative interviews, including in-depth interviews and/or focus group will be conducted after 6-month follow-up.


Condition or disease Intervention/treatment Phase
Smoking Behavioral: Workshop Behavioral: Face-to-face counseling Behavioral: Phone counseling Behavioral: Health talk Behavioral: Booklet Behavioral: SMS Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 642 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Health Services Research
Official Title: Assessing the Corporate Environment in Promoting Tobacco Control and Evaluation of a Smoking Cessation Programme in Workplaces in Hong Kong
Study Start Date : December 2012
Actual Primary Completion Date : July 2015
Actual Study Completion Date : July 2015

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Health talk + Workshop + Booklet + SMS
Health talk + workshop (Motivational intervention) + booklet + Short Message Service (SMS)
Behavioral: Workshop
Intensive psychological intervention included motivation of quitting enhancement, stress management and smoking triggers, craving and relapse are used to provide smoking cessation intervention

Experimental: Face-to-face counseling + Booklet + SMS
Face to Face counseling (Motivational intervention) + Booklet + SMS
Behavioral: Face-to-face counseling
Use motivational interview strategies through face-to-face counseling to provide smoking cessation intervention

Behavioral: Booklet
A 26-page booklet included information about smoking and diseases, benefits of quitting smoking, methods to quit smoking, how to handle withdrawal symptoms, stress management, declaration of quitting smoking, decisional balance of smoking or quitting.

Behavioral: SMS
Fifteen SMS were sent to subjects included welcome messages, risk of smoking, correction of myths about smoking or quitting, quitting tips, benefits of quitting, encouragement of quitting

Experimental: Phone counseling + Health talk + Booklet + SMS
Phone counseling (Motivational intervention) + Health talk + booklet + SMS
Behavioral: Phone counseling
Use motivational interview strategies through phone counseling to provide smoking cessation intervention.

Behavioral: Health talk
Health talk provided information about hazards of tobacco (active smoking, second- and third-hand smoke), benefits of quitting smoking and methods to quit smoking.

Behavioral: Booklet
A 26-page booklet included information about smoking and diseases, benefits of quitting smoking, methods to quit smoking, how to handle withdrawal symptoms, stress management, declaration of quitting smoking, decisional balance of smoking or quitting.

Behavioral: SMS
Fifteen SMS were sent to subjects included welcome messages, risk of smoking, correction of myths about smoking or quitting, quitting tips, benefits of quitting, encouragement of quitting

Experimental: Phone counseling + Booklet + SMS
Phone counseling (Motivational intervention) + booklet + SMS
Behavioral: Phone counseling
Use motivational interview strategies through phone counseling to provide smoking cessation intervention.

Behavioral: Booklet
A 26-page booklet included information about smoking and diseases, benefits of quitting smoking, methods to quit smoking, how to handle withdrawal symptoms, stress management, declaration of quitting smoking, decisional balance of smoking or quitting.

Behavioral: SMS
Fifteen SMS were sent to subjects included welcome messages, risk of smoking, correction of myths about smoking or quitting, quitting tips, benefits of quitting, encouragement of quitting




Primary Outcome Measures :
  1. Employers' KAP [ Time Frame: Before the health talk ]

    A questionnaire aimed to examine the employers'/ managerial staff's knowledge, attitudes and practices in promoting smoking cessation in the workplace.

    The questionnaires consist of three parts:

    1. Employers's knowledge was assessed by measuring the average number of correct answers on questions about smoking and quitting (Scale 1-7).
    2. Employers' attitude was assessed by measuring the average number agreeing items about their willingness to support employees to quit which included implementation of measures to show support for smoking cessation in the workplace or participation in smoking cessation programme (Scale 1-17).
    3. Employers' practice was assessed by the level of smoking ban in the workplace as reported by the employer. (Scale 1-4; 1: not prohibited, 2: prohibited by not strictly, 3: Strictly prohibited and 4: absolutely strictly prohibited).

  2. Smoking Quit Rate [ Time Frame: 6 month follow-up and 12 month follow-up ]
    smoking quit rate was defined as the self-reported 7-day point prevalence abstinence


Secondary Outcome Measures :
  1. Smoking Reduction [ Time Frame: 6 month follow-up and 12 month follow-up ]
    Reduced at least 50% of cigarette consumption



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.


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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Hong Kong residents aged 18 or above
  • Cantonese speaker and able to read in Chinese characters
  • Smoke at least one cigarette per day
  • Stay at Hong Kong during the intervention and follow-up periods (12 months)

Exclusion Criteria:

  • Smokers who are psychologically or physically unable to communicate
  • Smokers who are currently following other smoking cessation programme(s)
  • Smokers with diagnosed psychiatric illnesses

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): NCT02179424


Locations
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China
2/F, 61 Lung Kong Rd, Kowloon City, Lok Sin Tong Benevolent Society
Hong Kong, China
Sponsors and Collaborators
The University of Hong Kong
Lok Sin Tong Benevolent Society, Kowloon
Investigators
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Principal Investigator: Tai Hing Lam, MD The University of Hong Kong
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Professor Lam Tai-Hing, Chair Professor and Director, School of Public Health, The University of Hong Kong
ClinicalTrials.gov Identifier: NCT02179424    
Other Study ID Numbers: LSTWPLACE
First Posted: July 1, 2014    Key Record Dates
Results First Posted: December 23, 2016
Last Update Posted: December 23, 2016
Last Verified: October 2016
Keywords provided by Professor Lam Tai-Hing, The University of Hong Kong:
smoking cessation interventions