Clinical trial NCT02179424: Promoting Tobacco Control and Smoking Cessation in Workplaces [Phase I]
Official title: Assessing the Corporate Environment in Promoting Tobacco Control and Evaluation of a Smoking Cessation Programme in Workplaces in Hong Kong
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Smoking
Keywords: smoking cessation interventions
Lead sponsor: The University of Hong Kong
Sponsor class: OTHER
Collaborators: name: Lok Sin Tong Benevolent Society, Kowloon
First posted: 2014-07-01
Enrollment: 642
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: PARALLEL
Primary purpose: HEALTH_SERVICES_RESEARCH

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.


Eligibility 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

Primary outcomes:
measure: Employers' KAP
timeFrame: Before the health talk
measure: Smoking Quit Rate
timeFrame: 6 month follow-up and 12 month follow-up
Secondary outcomes:
measure: Smoking Reduction
timeFrame: 6 month follow-up and 12 month follow-up
Other outcomes:
Locations:
city: Hong Kong
country: China
facility: 2/F, 61 Lung Kong Rd, Kowloon City, Lok Sin Tong Benevolent Society
Study officials:
affiliation: The University of Hong Kong
name: Tai Hing Lam, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Wang MP, Li WHC, Suen YN, Cheung KC, Lau OS, Lam TH, Chan SSC. Association between employer's knowledge and attitude towards smoking cessation and voluntary promotion in workplace: a survey study. Tob Induc Dis. 2017 Nov 14;15:44. doi: 10.1186/s12971-017-0149-4. eCollection 2017.
citation: Wang MP, Suen YN, Li WHC, Lau OS, Lam TH, Chan SSC. Proactive outreach smoking cessation program for Chinese employees in China. Arch Environ Occup Health. 2018 Mar 4;73(2):67-78. doi: 10.1080/19338244.2017.1308309. Epub 2017 Apr 21.