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Completed

NCT Number: NCT02179424

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

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.

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Key information

Conditions

Smoking Behavior

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

2/F, 61 Lung Kong Rd, Kowloon City, Lok Sin Tong Benevolent Society

Hong Kong, China

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Workshop

Behavioral

Intensive psychological intervention included motivation of quitting enhancement, stress management and smoking triggers, craving and relapse are used to provide smoking cessation intervention

Face-to-face counseling

Behavioral

Use motivational interview strategies through face-to-face counseling to provide smoking cessation intervention

Phone counseling

Behavioral

Use motivational interview strategies through phone counseling to provide smoking cessation intervention.

Health talk

Behavioral

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

Booklet

Behavioral

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.

SMS

Behavioral

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 outcomes

  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:

    • Employers's knowledge was assessed by measuring the average number of correct answers on questions about smoking and quitting (Scale 1-7).
    • 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).
    • 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 outcomes

  1. Smoking Reduction

    Time frame: 6 month follow-up and 12 month follow-up

    Reduced at least 50% of cigarette consumption

Sponsors and collaborators

Lead sponsor

The University of Hong Kong

Other

Collaborators

  • Lok Sin Tong Benevolent Society, Kowloon

Registry information

Official study title

Assessing the Corporate Environment in Promoting Tobacco Control and Evaluation of a Smoking Cessation Programme in Workplaces in Hong Kong

Important dates

Study start
2012
Primary completion
2015
Study completion
2015
First posted
Jul 1, 2014
Registry last updated
Dec 23, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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