Identifying Risks of COVID-19 Outbreaks in Work Settings and the Implications for Control Measures
NCT ID: NCT05197673
Last Updated: 2024-02-07
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
NA
310 participants
INTERVENTIONAL
2022-03-15
2023-05-30
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Design: A 5-year study comprising a randomized controlled trial (RCT) and 3 parallel longitudinal studies with baseline and follow-up repeated measurements.
Setting: Non-office, mobile and office work settings. Participants: Part I is a RCT, 294 workers will be randomised to an intervention group (a theory-based education programme) and a control group with measurements repeated at 3rd, 6th and 9th month. Part II is a longitudinal quantitative study (i.e., prospective cohort study) involving 1,495 workers recruited at the baseline and followed up for 2 years. Part III is a longitudinal qualitative study involving 26 management and frontline workers. Part IV is a longitudinal workplace hygiene study involving 6 workplaces enrolled at the baseline and followed up to conduct ventilation investigation.
Intervention: Theory-based education intervention to build positive attitude of control measures towards SARS-CoV-2 outbreak.
Main outcome measure: Workplace hygiene data (airflow, air volume, etc.); willingness to vaccination and virus tests; actual uptake of SARS-CoV-2 antibody testing.
Data analyses: Multivariate regression logistic model and thematically analysed will be performed for quantitative and qualitative analysis. Intention-to-treat analysis will be employed for RCT.
Expected results: Large dataset of longitudinal measurement of willingness to vaccination/testing and actual uptake will be documented to inform policy. Educational intervention will be developed to mitigate risks of outbreaks in workplace.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Prevention of NCDs Through Screening and Educating Individuals on Health-risk Behaviours in the Community
NCT05790395
Trial of Health At Work Workplace Health Intervention
NCT00858533
Test@Work Study: Evaluation of Attitudes and Uptake Within Employee Health Checks in the Construction Industry
NCT04292002
Risk Factors for Community- and Workplace Transmission of COVID-19
NCT04320732
Organizational Approaches to TWH for Low-Income Workers
NCT04913168
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Intervention group
This arm will receive TPB intervention to build positive attitudes towards COVID-19 related preventive behaviour (e.g., good compliance with infection control measures, encouraging uptake of testing and vaccination), subjective norms (tackling strategies for perceived social pressure from others or normative beliefs), and improve perceived behavioural control towards risks of outbreaks in workplace.
Theory of planned behaviours (TPB) based intervention
Intervention group will receive TPB-based education program to improve workers' attitude toward SARS-CoV-2 and raise their intention to vaccination and virus testing. The intervention will be implemented at the baseline with measurements repeated at the 3rd month, 6th month and 9th month. The standardized mode of intervention includes face-to-face/online seminar (depends on the COVID-19 situation), message via mobile phone, promotion pamphlet, etc.
Control group
Control group will receive only general health information.
No interventions assigned to this group
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Theory of planned behaviours (TPB) based intervention
Intervention group will receive TPB-based education program to improve workers' attitude toward SARS-CoV-2 and raise their intention to vaccination and virus testing. The intervention will be implemented at the baseline with measurements repeated at the 3rd month, 6th month and 9th month. The standardized mode of intervention includes face-to-face/online seminar (depends on the COVID-19 situation), message via mobile phone, promotion pamphlet, etc.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
Exclusion Criteria
18 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Chinese University of Hong Kong
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Tse Lap Ah
Professor
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Lap Ah Tse
Role: PRINCIPAL_INVESTIGATOR
Chinese University of Hong Kong
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
The Chinese University of Hong Kong
Shatin, New Territories, Hong Kong
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Tse LA, Wang F, Mo PKH, Wan CCM, Tang NHY, Yang S, Dong D, Ho KF, Wong SY. Does enhanced educational intervention reduce breakthrough infection and mental health problems via improving acceptance of COVID-19 booster shots in Chinese non-healthcare workers: A randomized controlled trial? J Infect Public Health. 2025 May;18(5):102719. doi: 10.1016/j.jiph.2025.102719. Epub 2025 Feb 21.
Constantin AM, Noertjojo K, Sommer I, Pizarro AB, Persad E, Durao S, Nussbaumer-Streit B, McElvenny DM, Rhodes S, Martin C, Sampson O, Jorgensen KJ, Bruschettini M. Workplace interventions to reduce the risk of SARS-CoV-2 infection outside of healthcare settings. Cochrane Database Syst Rev. 2024 Apr 10;4(4):CD015112. doi: 10.1002/14651858.CD015112.pub3.
Provided Documents
Download supplemental materials such as informed consent forms, study protocols, or participant manuals.
Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
2021.531-T
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.