Smoking Cessation in Workplaces in Hong Kong [Phase II]

Not Applicable

• Conditions: Smoking
• Interventions: Behavioral: workshop (Motivational intervention); Behavioral: Phone counseling; Behavioral: Health talk; Behavioral: Face to Face counseling; Behavioral: SMS; Behavioral: Booklet

• Registration Number: NCT02659774
• Lead Sponsor: The University of Hong Kong

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.

Study Timeline

• Study Start: 2015-01
• Study First Submitted: 2015-07-09
• Study First Submitted QC: 2016-01-15
• Study First Posted: 2016-01-20
• Status Verified: 2016-11
• Last Update Submitted: 2016-11-01
• Last Update Posted: 2016-11-03
• Primary Completion: 2017-06
• Study Completion: 2017-06

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 600

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group A	workshop (Motivational intervention)	Health talk + workshop (Motivational intervention) + booklet + Short Message Service (SMS)
Group A	SMS	Health talk + workshop (Motivational intervention) + booklet + Short Message Service (SMS)
Group A	Health talk	Health talk + workshop (Motivational intervention) + booklet + Short Message Service (SMS)
Group A	Booklet	Health talk + workshop (Motivational intervention) + booklet + Short Message Service (SMS)
Group B	Booklet	Face to Face counseling (Motivational intervention) + Booklet + SMS
Group D	Phone counseling	Phone counseling (Motivational intervention) + booklet + SMS
Group D	SMS	Phone counseling (Motivational intervention) + booklet + SMS
Group B	Health talk	Face to Face counseling (Motivational intervention) + Booklet + SMS
Group B	SMS	Face to Face counseling (Motivational intervention) + Booklet + SMS
Group C	Health talk	Phone counseling (Motivational intervention) + Health talk + booklet + SMS
Group D	Booklet	Phone counseling (Motivational intervention) + booklet + SMS
Group B	Face to Face counseling	Face to Face counseling (Motivational intervention) + Booklet + SMS
Group C	SMS	Phone counseling (Motivational intervention) + Health talk + booklet + SMS
Group C	Booklet	Phone counseling (Motivational intervention) + Health talk + booklet + SMS

Primary Outcome Measures

Name	Time	Method
Change from baseline smoking quit rate at 6-month	6 months after the intervention	Quit 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 Outcome Measures

Name	Time	Method
Change from baseline smoking quit rate at 12-month	12 months after the intervention	Quit 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.
Change from baseline smoking reduction at 6-month	6 months after the intervention	Smoking 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-month	12 months after the intervention	Smoking 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.

Trial Locations

Locations (1)

2/F, 61 Lung Kong Rd, Kowloon City, Lok Sin Tong Benevolent Society; 🇨🇳 Hong Kong, China