Article

Measuring secondhand smoke in homes in Malaysia: A feasibility study comparing indoor fine particulate (PM2.5) concentrations following an educational feedback intervention to create smoke-free homes during the COVID-19 pandemic

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Citation

Zulkifli A, Abd Rani NL, Abdul Mutalib RNS, Dobson R, Engku Ibrahim TA, Abd Latif NH, O’Donnell R, Uny I, Zainal Abidin E & Semple S (2022) Measuring secondhand smoke in homes in Malaysia: A feasibility study comparing indoor fine particulate (PM2.5) concentrations following an educational feedback intervention to create smoke-free homes during the COVID-19 pandemic. Tobacco Induced Diseases, 20, Art. No.: 64. https://doi.org/10.18332/tid/150338

Abstract
Introduction Extensive regulations have been introduced to reduce secondhand smoke (SHS) exposure among non-smokers in Malaysia. However, there is still a need to encourage behavior change of smokers in relation to making homes smokefree. This feasibility study aimed to use low-cost air pollution monitors to quantify SHS concentrations in Malaysian households and to explore the practicality of using personalized feedback in educating families to make their homes smoke-free. Methods A total of 35 smokers in three states in Malaysia were recruited via snowball and convenience sampling methods. Indoor fine particulate (PM 2.5 ) concentrations in participants’ homes were measured for 7 days before and after educational intervention using a pre-defined template, which included personalized airquality feedback, and information on SHS impacts were given. The feedback was delivered over two 20-minute phone calls or in-person sessions following the completion of the air-quality measurements. Data were corrected for outdoor PM 2.5 concentrations from the nearest environmental monitor. Results Despite the challenges in conducting the project during COVID-19 pandemic, the delivery of the intervention was found to be feasible. Twenty-seven (77%) out of 35 participants completed PM 2.5 measurements and received a complete intervention. The median (IQR: 25th –75th percentile concentrations) SHS-PM 2.5 concentrations at baseline and follow-up were 18.3 μg/m 3 (IQR: 13.3–28.3) and 16.2 μg/m 3 (IQR: 10.4 – 25.6), respectively. There was a reduction of SHS-PM 2.5 concentrations at follow-up measurement in the houses of 17 participants (63%). The change in corrected indoor PM 2.5 concentrations between baseline and followup was not statistically significant (Z= -1.01, p=0.29). Conclusions This educational intervention, combining the use of a low-cost air particle counter with personalized air-quality feedback, was found to be feasible in the Malaysian setting. It has potential to trigger behavior change among smokers, reducing indoor smoking and consequent SHS concentrations, and increasing smoke-free home implementation. A large-scale trial is needed.

Journal
Tobacco Induced Diseases: Volume 20

StatusPublished
FundersMRC Medical Research Council
Publication date31/07/2022
Publication date online12/07/2022
Date accepted by journal23/05/2022
URLhttp://hdl.handle.net/1893/34522
eISSN1617-9625

People (3)

People

Dr Rachel O'Donnell

Dr Rachel O'Donnell

Senior Research Fellow, Institute for Social Marketing

Professor Sean Semple

Professor Sean Semple

Professor, Institute for Social Marketing

Dr Isabelle Uny

Dr Isabelle Uny

Senior Research Fellow, Institute for Social Marketing

Projects (1)

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