NCT03870906

Brief Summary

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
556

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2019

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

March 10, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 12, 2019

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2022

Completed
Last Updated

May 22, 2023

Status Verified

May 1, 2023

Enrollment Period

2.8 years

First QC Date

March 10, 2019

Last Update Submit

May 19, 2023

Conditions

Smoking Cessation

Outcome Measures

Primary Outcomes (1)

  • Self-reported 7-day point prevalence quit rate

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

    6-month

Secondary Outcomes (3)

  • Self-reported 7-day point prevalence quit rate

    9- and 12-month

  • Self-reported reduction rate

    6-, 9-, and 12-month

  • Biochemical validation of smoking status

    6-, 9-, and 12-month

Study Arms (2)

WhatsApp interaction

EXPERIMENTAL

Individual and group chat interactions.

Behavioral: Occupational-specific health talkBehavioral: WhatsApp interactionBehavioral: Phone follow-up/counselling service

Text message

PLACEBO COMPARATOR

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

Behavioral: Occupational-specific health talkBehavioral: Phone follow-up/counselling serviceBiological: Text message

Interventions

Occupational-specific health talkBEHAVIORAL

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.

Text messageWhatsApp interaction
WhatsApp interactionBEHAVIORAL

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.

WhatsApp interaction
Phone follow-up/counselling serviceBEHAVIORAL

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

Text messageWhatsApp interaction
Text messageBIOLOGICAL

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

Text message

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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)

You may not qualify if:

  • Smokers who are psychologically or physically unable to communicate
  • Currently following other smoking cessation programme(s)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

School of Nursing, The University of Hong Kong

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Smoking Cessation

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

March 10, 2019

First Posted

March 12, 2019

Study Start

March 1, 2019

Primary Completion

December 31, 2021

Study Completion

March 31, 2022

Last Updated

May 22, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Locations

HK(1)