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International Journal of Public Health and Clinical Sciences (IJPHCS)
Open Access e-journal ISSN : 2289-7577

RANDOMISED CONTROL TRIAL TO ESTABLISH THE SMOKE-FREE HOME - A STUDY PROTOCOL

Lim K.H., Sumarni Mohd Ghazali, Jia Hui Lim, Chee Cheong Kee, Hui Li Lim

Abstract


Background: A multitude of studies revealed that SHS exposure had increased the risk of diseases and mortality. However, there are studies reported that a substantial proportion of Malaysian adults and youth were still exposed to SHS at home.  Therefore, the reduction on the SHS at home is paramount essential to reduce the risk of morbidity and mortality among Malaysian. This study aims to investigate the effectiveness of randomised control intervention to establish smoke-free home and proportion of quit smoking rate among the intervention groups.

Materials and Methods: This study use open-label, parallel, randomised control trial and involve households from selected villages in the state of Selangor. A total of 70 households will be recruited into the study based on an expected reduction of 25% between baseline and week 12 in log-transformed mean home air quality (PM2.5) between the control and intervention groups. The outcome variable is the incidence rate of smoke-free home initiation. Both intervention and control groups will receive health-related education materials on smoking, but for the intervention group, behavioural, personalised indoor air quality feedback, and other markers of SHS exposure will be introduced. Two-way repeated measure ANOVA, correlation and repeated proportion analysis will be employed in the analysis.

Expected outcome: This study will be able to determine the effectiveness of the randomised controlled trial intervention to establish a smoke-free home, which can then be expanded and integrated with other interventional programmes in reducing the SHS exposure to SHS at home among the Malaysian populations.

Keywords: Smoke-free home, randomised control trial, behavioural, indoor air quality feedback, SHS marker.

 


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