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Smoking Cessation in Workplaces in Hong Kong [Phase II]

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

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02659774
Enrollment
600
Registered
2016-01-20
Start date
2015-01-31
Completion date
2017-06-30
Last updated
2016-11-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking

Keywords

Smoking cessation interventions

Brief summary

This study has the following objectives: 1. To examine the employers'/managerial staff's knowledge, attitudes and practices in promoting smoking cessation in workplace. 2. To evaluate the smoking behaviours of participants before and after attending a smoking cessation intervention.

Detailed description

Study design In Phase I of this study, a large scale cross-sectional survey will be sent to 3000 corporations in Hong Kong. The questionnaire will examine the employers' knowledge, attitudes and practices in promoting smoking cessation in the workplace. 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. A total of 600 smokers from corporations will be recruited and interviewed before the intervention at baseline, immediately after the intervention, and at 1-, 4-, 12-, 26- and 52-week post-intervention follow-ups, in an attempt to evaluate their smoking behaviours, knowledge on smoking and satisfaction of the smoking cessation services. Self-reported quitters (did not smoke in the past 7 days) will be invited to participate in the bio-chemical validation by assessing their exhaled carbon monoxide level and the saliva cotinine level. Process evaluation: Qualitative interviews, including in-depth interviews and/or focus group will be conducted within 1 month after 12-month follow-up.

Interventions

BEHAVIORALworkshop (Motivational intervention)

Through intensive workshop which includes motivation of quitting enhancement, stress management, smoking triggers, cravings and relapse, to provide smoking cessation intervention

BEHAVIORALHealth 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

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

Use motivational interview strategies through telephone counseling to provide smoking cessation intervention

BEHAVIORALSMS

Use motivational interview strategies through telephone messages to provide smoking cessation intervention

BEHAVIORALBooklet

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

Sponsors

Lok Sin Tong Benevolent Society, Kowloon
CollaboratorOTHER
The University of Hong Kong
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline smoking quit rate at 6-month6 months after the interventionQuit smoking rate is defined by the self-reported 7-day point prevalence abstinence. It is a binary type (yes/no) questionnaire and participants answer the question about their smoking status in the past 7 days at 6-month after the intervention.

Secondary

MeasureTime frameDescription
Change from baseline smoking reduction at 6-month6 months after the interventionSmoking reduction is defined as reduced at least 50% of cigarette consumption. Participants were asked to respond to the daily cigarette consumption at 6-month after the intervention. Their daily cigarette consumption at 6-month were compared with baseline's daily cigarette consumption and determine whether they had reduced at least 50% cigarette consumption at 6-month.
Change from baseline smoking reduction at 12-month12 months after the interventionSmoking reduction is defined as reduced at least 50% of cigarette consumption. Participants were asked to respond to the daily cigarette consumption at 6-month after the intervention. Their daily cigarette consumption at 12-month were compared with baseline's daily cigarette consumption and determine whether they had reduced at least 50% cigarette consumption at 12-month.
Change from baseline smoking quit rate at 12-month12 months after the interventionQuit smoking rate is defined by the self-reported 7-day point prevalence abstinence. It is a binary type (yes/no) questionnaire and participants answer the question about their smoking status in the past 7 days at 12-month after the intervention.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026