Smoking Cessation Programme in Workplaces in Hong Kong (Phase IV)

NCT ID: NCT03870906

Last Updated: 2023-05-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

556 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-03-01

Study Completion Date

2022-03-31

Brief Summary

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Smoking causes cardiovascular and respiratory diseases, cancers and diabetes, and it has been a leading risk factor for death globally. Despite the availability of smoking cessation services locally, most smokers do not use such services. Workplace is one of the most convenient platforms to provide smoking cessation services and over 55% of smokers are employed according to the local population-based survey. However, the effectiveness of a smoking cessation programme conducted in workplace is yet to be examined in Hong Kong, and the attitudes and practices of corporations in promoting smoking cessation are not clear. Thus, this study aims to examine the employers'/ managerial staff's knowledge, attitudes and practices in promoting smoking cessation in workplace and evaluate the smoking behaviors of participants before and after attending a smoking cessation intervention.

Detailed Description

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This study will separate into two phases. Phase I is a large scale cross-sectional survey to corporations in Hong Kong to examine the employers' knowledge, attitudes and practices in promoting smoking cessation in the workplace. Phase II is a 2-arm randomized controlled trial will be conducted to examine the effectiveness of WhatsApp intervention.

Outcome:

The primary outcome of the study is to measure participated smokers' self reported 7-day point prevalence quit rate at 6-month follow-up. Secondary outcomes include participated smokers' (i) self reported 7-day point prevalence quit rate at 9- and 12-month follow-ups; (ii) self-reported reduction rate at 6-, 9- and 12-month follow-ups; (iii) self-reported quit attempt at 6-, 9- and 12-month follow-ups; (iv) change in self-efficacy towards smoking cessation at 6-, 9- and 12-month follow-ups compared with baseline.

Data analyses

Phase I:

Descriptive statistics will be used to measure the (1) basic information of the corporations, including the total number of employees and smoking employees; (2) knowledge on smoking of employers/managerial staff; (3) attitudes on smoking cessation of employers/managerial staff; (4) practices of the corporations with respect to smoking cessation.

Phase II:

Descriptive statistics such as frequency, percentage, and mean will be used to summarize the outcomes and other variables. Chi-square tests and t-tests will be used to compare outcome variables between subgroups. The intention-to-treat analysis will be used such that those lost to contact and refused cases at the follow-ups will be treated as no reduction in cigarette consumption nor quitting. Subgroup analyses will be conducted among the "adherence" cohort, which is classified as subjects who actively participant in the WhatsApp interaction.

Conditions

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Smoking Cessation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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WhatsApp interaction

Individual and group chat interactions.

Group Type EXPERIMENTAL

Occupational-specific health talk

Intervention Type BEHAVIORAL

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

WhatsApp interaction

Intervention Type BEHAVIORAL

Individual WhatsApp interactions last 3-month and consist of 2 parts. First part is regular WhatsApp message. The schedule will be adjusted according to the participants' quitting status. Second part is real-time discussion intervention based on participants' socio-demographic characteristics, smoking habit at baseline and updated smoking status obtained during online conversation. At 3-month follow-up, participants who are still smoking are encouraged to join an additional 1-month online group chat moderated by a smoking cessation counselor.

Phone follow-up/counselling service

Intervention Type BEHAVIORAL

The intervention outcomes and participants' smoking status will be followed up regularly via telephone interviews (15 - 30 minutes).

Text message

Regular text messages with similar frequency to those in the Intervention group.

Group Type PLACEBO_COMPARATOR

Occupational-specific health talk

Intervention Type BEHAVIORAL

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

Phone follow-up/counselling service

Intervention Type BEHAVIORAL

The intervention outcomes and participants' smoking status will be followed up regularly via telephone interviews (15 - 30 minutes).

Text message

Intervention Type BIOLOGICAL

Participants will receive regular text messages with similar frequency to those in the intervention group.

Interventions

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Occupational-specific health talk

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

Intervention Type BEHAVIORAL

WhatsApp interaction

Individual WhatsApp interactions last 3-month and consist of 2 parts. First part is regular WhatsApp message. The schedule will be adjusted according to the participants' quitting status. Second part is real-time discussion intervention based on participants' socio-demographic characteristics, smoking habit at baseline and updated smoking status obtained during online conversation. At 3-month follow-up, participants who are still smoking are encouraged to join an additional 1-month online group chat moderated by a smoking cessation counselor.

Intervention Type BEHAVIORAL

Phone follow-up/counselling service

The intervention outcomes and participants' smoking status will be followed up regularly via telephone interviews (15 - 30 minutes).

Intervention Type BEHAVIORAL

Text message

Participants will receive regular text messages with similar frequency to those in the intervention group.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Hong Kong residents aged 18 or above
* Smoke at least one cigarette per day
* Able to communicate in Cantonese/Mandarin and read Chinese
* Able to use instant messaging tool (e.g. WhatsApp) for communication
* Stay at Hong Kong during the intervention and follow-up periods (12 months)

Exclusion Criteria

* Smokers who are psychologically or physically unable to communicate
* Currently following other smoking cessation programme(s)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Lok Sin Tong Benevolent Society, Kowloon

OTHER

Sponsor Role collaborator

The University of Hong Kong

OTHER

Sponsor Role lead

Responsible Party

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Dr. Wang Man-Ping

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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School of Nursing, The University of Hong Kong

Hong Kong, , Hong Kong

Site Status

Countries

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Hong Kong

Other Identifiers

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LST SCPW P4

Identifier Type: -

Identifier Source: org_study_id

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