Effect of TRAP Guard Module on air pollution perception and face covering usage behaviour among traffic police in Klang Valley Malaysia

THE EFFECTS OF A THEORY-BASED HEALTH EDUCATION MODULE ON FACE COVERING USAGE BEHAVIOUR AMONG TRAFFIC POLICE IN KLANG VALLEY, MALAYSIA

Status

Recruiting

Phases

Phase 2

Study type

Interventional

Source

TCTR

Registry ID

TCTR20260128006

Enrollment

188

Registered

2026-01-28

Start date

2025-05-30

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Respiratory health problems due to long-term exposure to traffic-related air pollution (TRAP) among traffic police officers. These health issues include increased risk of respiratory symptoms, reduced lung function, and possible long-term complications such as chronic bronchitis, asthma, and cardiovascular diseases. This study aims to prevent these outcomes by improving self-preventive behaviour through face-covering usage supported by a Health Belief Model-based educational module. Traffic-Rel

Interventions

A theory-based health education module designed to improve perception and preventive practices regarding traffic-related air pollution (TRAP) among traffic police officers. The intervention includes a

Experimental Behavioral,No Intervention Behavioral

TRAP Guard,Standard briefing

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. Traffic police officers currently serving at selected JSPT (Jabatan Siasatan dan Penguatkuasaan Trafik) stations in the Klang Valley. 2. Officers who are actively involved in outdoor traffic duties (e.g., directing traffic, patrolling, roadside checks).

Exclusion criteria

Exclusion criteria: 1. Traffic police officers who are assigned exclusively to indoor or administrative duties. 2. Officers who are on long leave, medical leave, or scheduled for transfer during the study period. 3. Officers with known severe respiratory illness or disability that prevents the use of face coverings.

Design outcomes

Primary

Measure	Time frame
Face covering usage behaviour Baseline, 1 month post-intervention, 3 months post-intervention Score on the Face Mask Usage Scale (FMUS), total score from 6 items, 5-point Likert scale (range: 6 to 30)	—

Secondary

Measure	Time frame
Perception of TRAP (Traffic-Related Air Pollution) Baseline, 1 month post-intervention, 3 months post-intervention Mean scores of HBM constructs: susceptibility, severity, benefits, barriers, cues to action, and self-efficacy (measured using Likert scale).	—

Countries

Malaysia

Contacts

Public ContactAhmed Md Zamri

UPM

gs68753@student.upm.edu.my60172712502

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026