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Completed

NCT Number: NCT03142555

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

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 behaviours of participants before and after attending a smoking cessation intervention.

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Key information

Conditions

Smoking Cessation Behavior Health Behavior

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

School of Nursing, The University of Hong Kong

Hong Kong

About this study

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 randomized controlled trial study to evaluate the effectiveness of a smoking cessation intervention to assess the subjects' smoking behaviors, knowledge on smoking and satisfaction of the smoking cessation services. The investigators are interested to know if the intervention package including health education,social media and telephone follow-up would trigger higher quit rate or other changes in smoking behaviors. The investigators will also monitor the smoking status of the subjects regularly through telephone follow-ups, understand the company's practices about smoke-free policy as well as evaluate the outcomes of the intervention.

The primary outcome of the study is to measure participated smokers' self-reported 7-day point prevalence quit rate at 26 weeks follow-ups. The secondary outcomes include participated smokers' (i) self-reported reduction rate at 52 weeks follow-ups; (ii) self-reported quit attempt at 26 and 52 weeks follow-ups; (iii) self-reported reduction rate at 26 and 52 weeks follow-ups; (iv) Engagement in social media intervention.

Data of the above outcomes will be collected through telephone interviews (follow-ups) by the investigators. Descriptive statistics will be used to measure the (1) basic info of the participants, 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. Logistic regression, linear regression and spearman correlation coefficient will be used to examine the relationships between corporates' policy in smoking cessation and the knowledge and attitudes of employers/ managerial staff. Chi square and t-test will also be used to compare the quit rates between groups and logistic regression will be used to predict quitting. Data will be entered and analyzed using IBM SPSS version 23.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Hong Kong residents aged 18 or above
  • Cantonese speaker
  • Smoke at least one cigarette per day in the past 30 days
  • Stay in 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)
  • Smokers with diagnosed psychiatric illnesses

Treatment and study plan

Health talk plus intensive social media intervention

Behavioral

Subjects in this group will receive treatments including a general health education talk about smoking cessation. Subjects will also get involved in the personalized what's app interaction (up to 2 months duration) to receive social support to quit smoking. The intervention outcomes and subjects' smoking status will be followed up regularly via telephone interviews (15 - 30 minutes).

Health talk plus less intensive social media intervention

Behavioral

Subjects in this group will receive treatments including a general health education talk about smoking cessation but without the information of active referral to other smoking cessation services. Subjects will receive less intensive reminders via social media. The intervention outcomes and subjects' smoking status will be followed up regularly via telephone interviews (15 - 30 minutes).

Primary outcomes

  1. Self-reported 7-day point prevalence quit rate

    Time frame: 26 weeks

    Smokers who did not smoke even a puff in the 7 days preceding the follow-up

Secondary outcomes

  1. Self-reported 7-day point prevalence quit rate

    Time frame: 52 weeks

    Smokers who did not smoke even a puff in the 7 days preceding the follow-up

  2. Self-reported reduction rate

    Time frame: 26 and 52 weeks

    Smokers' who reduced tobacco use (in term of daily cigarette consumption) in the follow-up when comparing with the baseline

  3. Self-reported quit attempt rate

    Time frame: 26 and 52 weeks

    Smokers' who refrained from smoking for 24 hours in the 7 days preceding the follow-up

  4. Engagement in social media intervention

    Time frame: 26 weeks

    Self-reported engagement in social media intervention in the two groups

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
2017
Primary completion
2019
Study completion
2021
First posted
May 5, 2017
Registry last updated
Sep 21, 2021

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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