1.Prenatal PM2.5 Exposure and Its Association with Neurodevelopmental Impairment in Children: A Narrative Review
Amy Azira Hamis ; Muhammad Al-Amin Shaharuddin ; Nazmeen Adline Fawwazah A Fauzi ; Mohd Rizal Abdul Manaf
International Journal of Public Health Research 2023;13(no.2):1743-1755
Introduction:
Air pollutants, including PM2.5, are an increasing threat to public health. Studies
have reported the adverse effect of PM2.5 exposures during pregnancy on
neurodevelopment in children. We performed a narrative review using the
PubMed, Web of Science, and Scopus databases from 2017 to 2022 using
keywords such as prenatal, particulate matter, neurodevelopment, and
children. This review aims to identify symptoms of impaired
neurodevelopment in children associated with prenatal PM2.5 exposure, the
association between the timing of prenatal exposure PM2.5 and symptoms of
impaired neurodevelopment in children as well as other factors that may
influence the association of prenatal PM2.5 exposure and symptoms of impaired
neurodevelopment in children
Methods:
A total of 25 articles were included in this review.
Results:
Symptoms of neurodevelopmental impairment associated with prenatal
exposure to PM2.5 include language, speech, and communication symptoms;
motor skills; behaviour and social skills; memory as well as learning/cognitive
symptoms. Neurodevelopmental impairments were associated with exposure
to PM2.5 across all three trimesters with impairment in communication and
behavioural domains predominating in those exposed during the first trimester.
Conclusions
Generally, males were more susceptible to having neurodevelopmental
impairment symptoms compared to females. More information regarding the
effect of prenatal PM2.5 exposure on neurodevelopmental domains of children
will support public health policies that reduce air pollution and improve
children’s health.
2.The Benefits and Challenges of Paper Handheld Maternal Record in Southeast Asia: A Systematic Review
Siti Aishah Mohd Sanef ; Rosnah Sutan ; Mohd Rizal Abdul Manaf
International Journal of Public Health Research 2023;13(no.2):1766-1778
Introduction:
Home-based maternal records were first designed for better monitoring during
pregnancy, delivery, and the postpartum period. There are various studies that
reported on the benefits of paper handheld record for mothers in across regions.
However, majority of the studies on paper handheld record or home-based
record were mainly addressing the benefit and very scare on the challenges
faced by the users. This study aims to evaluate the benefits and challenges of
the maternal paper handheld to users particularly to mothers and healthcare
providers in Southeast Asia (SEA) region
Methods:
Articles were searched from Scopus, Web of Science, and PubMed using
relevant keywords based on the review topic. Based on PRISMA guidelines,
the search results were then screened based on inclusion criteria: published
between 2012 and 2021in English language, available in full text, open access,
and conducted in Southeast Asia. Six articles were included in the final
analysis, which were also appraised for their quality
Results:
There are six articles included in this review. Majority of the studies
highlighted the benefits of paper handheld records to mothers. Upon further
analysis, there are three major themes emerged from the outcome namely
mother’s knowledge, maternal health service utilization and breastfeeding
practice. Only one study reported on the challenges faced by mothers and care
provider while utilising the paper handheld record.
Conclusions
The paper handheld maternal record implementation in SEA exhibited great
positive impact to the mothers in terms of knowledge, maternal health service
utilization and breastfeeding practice. Nonetheless, it is quite difficult to find
studies that addressed the challenges faced by the users in SEA region. It would
be best to understand the challenges faced regionally or even locally to make
improvement of the maternal health service as it needs to be comprehensive
and suited with the local context.
3.Effectiveness of sugar sweetened beverages tax on health and healthcare costs: A systematic review
Diana Safraa Selimin ; Nazarudin Safian, ; Mohd Rohaizat Hassan ; Mohd Rizal Abdul Manaf ; Qistina Mohd Ghazali
International Journal of Public Health Research 2023;13(no.2):1792-1807
Introduction:
Taxing sugar-sweetened beverages (SSB) is one of many other best strategies
to reduce consumption of SSB among populations. It is known that SSB
consumption is the main contributor which cause obesity and further lead to
non-communicable diseases. This study aimed to gather the evidence on the
effectiveness of sugar-sweetened beverages tax implementation, in terms of
health outcome and healthcare cost benefit.
Methods:
A systematic review was done related to literature that reported about
effectiveness of sugar-sweetened beverages tax implementation, in terms of
health outcome and healthcare cost benefit. Four databases were used to
identify the literature, namely PubMed, Cochrane, Scopus and Ovid and
Medline. PRISMA flow checklist was used as a guide to search for the eligible
articles.
Results:
In total, there were sixteen eligible articles included in this systematic review.
All studies are simulation studies. Results showed that both excise and ad
valorem tax are effective to reduce healthcare costs and could avert diseases
related to high sugar intake. Other than that, it is proven that implementing tax
will gain favorable health outcome rather than do nothing. Better results seen
when the tax is increased.
Conclusion
As a conclusion, SSB tax is proven as an effective public health intervention
in terms of giving benefit to the health outcome and healthcare cost
4.Plain Packaging and Pictorial Warning in Asia Countries: Where are We?
Kavita-Jetly ; Azmawati Mohammed Nawi ; Qistina Mohd Ghazali ; Mohd Rizal Abdul Manaf
International Journal of Public Health Research 2022;12(no.1):1545-1555
Worldwide, around 8 million people die yearly due to tobacco usage. Cigarette smoking is the most popular form of tobacco usage. Smoking has linked to many detrimental health effects among adults and adolescents. Recognising the burden of smoking, World Health Organization have implemented various tobacco control strategies under the Framework Convention of Tobacco Control and mPOWER. This includes implementation of plain packaging and pictorial warning. In Asia, only Thailand, Singapore, Turkey, Saudi Arabia, and Israel have implemented plain cigarette pack. However, some countries have made progress to implement plain cigarette pack. Although some countries have not implemented plain pack, implementation of larger pictorial warning serve as a pathway for implementation of plain packaging. Countries with pictorial warning on cigarette pack should ensure it covers at least 50% of pack. Timor Leste has the largest pictorial warning on cigarette pack in the world. In conclusion, only 5 countries in Asia have implemented plain pack and some countries in this region are yet to implement size of pictorial warning according to requirement of World Health Organization. All countries should target to implement standardized pack to denormalise tobacco usage.
5.Intervention For Occupational Fatigue And Sleepiness Among Healthcare Workers Working In Shift: A Systematic Review
Mohd Fadhli Mohd Fauzi ; Hanizah Mohd Yusoff ; Mohd Rizal Abd Manaf ; Nazarudin Safian ; Muhammad Aklil Abd Rahim ; Mohd Faizal Madrim ; Azman Atil @Azmi ; Ammar Amsyar Abdul Haddi ; Nur Adibah Mat Saruan
Malaysian Journal of Public Health Medicine 2019;19(2):47-53
Healthcare workers typically work in shift to ensure smooth operation of healthcare industries around the clock. However, working in shift put them at risk of developing occupational fatigue and sleepiness during and after work, with multiple adverse effects to themselves and patients under their care. This review aims to identify available evidence-based intervention for fatigue and sleepiness among healthcare workers working in shift. We searched PubMed, Scopus and CENTRAL database from January 2013 to December 2017. Selection criteria included randomised controlled trials (RCTs) that investigated the effect of any interventions on fatigue and/or sleepiness among shift workers. Two authors independently screened titles and abstracts for relevant studies, extracted data, and assessed risk of bias. We included 8 relevant trials with 7 review-relevant participants. Given the methodological diversity of the included studies in terms of interventions and assessment tools, it is not possible to determine the effectiveness of these interventions to reduce occupational fatigue or sleepiness among healthcare workers working in shift. More good quality RCTs with comparable assessment tools is needed.
6.Health-related quality of life in paediatric spina bifida
Pui Ling Thong ; Sau Wei Wong ; Mohd Rizal Abdul Manaf ; Ming Lee Lee ; Kanaheswari Yoganathan
The Medical Journal of Malaysia 2019;74(4):282-287
Introduction: The average incidence of spina bifida (SB) in
Malaysia is 0.43 among 1,000 live births. The burden of the
disease and its impact on the overall development and
health though tremendously improved, remains significant.
Therefore, current patient management strategies must
include quality of life (QOL) measures.
Methods: This was a prospective, cross-sectional study on
spina bifida children aged 5-20 years, attending the
paediatric spina bifida clinics of Universiti Kebangsaan
Malaysia Medical Centre Kuala Lumpur and Hospital Tuanku
Jaanku Seremban. Scores were obtained using the validated
disease specific Parkin QOL questionnaire. Univariate and
multivariate analysis were used to investigate factors that
were determinants for these outcomes. Results were
expressed as beta coefficient and 95% confidence intervals
(95%CI).
Results: A total of 54 children and adolescents aged
between 5-20 years completed the questionnaires. Presence
of neurogenic bowel (p=0.003), neurogenic bladder
(p=0.041), shunt (p=0.044), non-ambulators (p=0.007) and
being the only child in the family (p=0.037) were associated
with lower QOL scores. Multivariate analysis showed
presence of neurogenic bowel (β=0.375, 95%CI: 0.00, 0.15)
and being the only child in the family (β=0.250, 95%CI: 0.04,
0.17) explained 22.1% of the variance in the QOL mean
percentage scores.
Conclusion: Being a single child in the family was the only
socio-demographic variable associated with lower QOL
scores. Although several clinical factors appeared to
contribute significantly to QOL in spina bifida children, the
presence of neurogenic bowel had the greatest impact.
7.The Cost Of Dialysis In Malaysia: Haemodialysis And Continuous Ambulatory Peritoneal Dialysis
Naren Kumar Surendra ; Mohd Rizal Abdul Manaf ; Hooi Lai Seong ; Sunita Bavanandan ; Fariz Safhan Mohamad Nor ; Shahnaz Shah Firdaus Khan ; Ong Loke Meng ; Abdul Halim Abdul Gafor
Malaysian Journal of Public Health Medicine 2018;18(2):70-81
In Malaysia, dialysis-treated end stage renal disease (ESRD) patients have been increasing rapidly. Haemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) use a disproportionately large amount of limited healthcare resources. This study aims to estimate the costs of HD and CAPD from the Ministry of Health (MOH) perspective. One year prospective multicentre study was conducted from October 2016 to September 2017 to assess direct medical costs of 90 HD patients and 73 CAPD patients from five large MOH dialysis centres. A mixed method of activity-based costing and step-down was used. The capital costs included land, building, medical equipment and furnishing. The recurrent costs included staff emoluments, facility utilities, patients’ medical costs and dialysis consumables. One-way sensitivity analysis was performed to investigate variability in the data. One hundred and forty-one patients (82%) completed the study comprising of 77 patients on HD and 64 patients on CAPD. Majority of the patients were between 46-65 years old (n=75, 53.2%). The most common aetiology of ESRD was diabetes mellitus (44.2% in HD and 48.4% in CAPD). Cost per patient per year was RM39,790 for HD and RM37,576 for CAPD. The main cost drivers were staff emoluments (37.6%) and dialysis consumables (70.5%) for HD and CAPD respectively. HD is highly sensitive towards all the variables analysed except for dialysis consumables. In CAPD, there are minimal sensitivities except for the 5% discount rate. Knowledge of the costs of modalities are useful in the context of planning for dialysis services and to optimise the number of kidney failure patients treated by dialysis within the MOH.
Haemodialysis
;
continuous ambulatory peritoneal dialysis
;
end stage renal disease
;
cost
;
Malaysia
8.Psychometric Evaluation of the Malay Version of the Impact of Weight on Quality Of Life-Lite (IWQOL-LITE) Questionnaire
Mohd Rizal Abdul Manaf ; Ahmad Fareed A Rahman ; Aniza ISMAIL ; Sharifa Ezat Wan Puteh ; Azimatun Noor AIZUDDIN
International Journal of Public Health Research 2018;8(1):950-955
Background: The availability of obesity specific quality of life measurement tool is limited. The Malay version of Impact of Weight on Quality of Life-Lite is an obesity specific quality of life questionnaire which has been translated for use in Malaysia. The aim of this study is to evaluate the validity and reliability of this tool to measure quality of life among different body mass index (BMI) groups.Methods: One hundred and twenty subjects with different BMI categories attending an outpatient government clinic participated in this study. The translated Malay version of IWQOL-Lite was used for assessment. The validity of this questionnaire was examined using content validity, criterion validity and construct validity. Reliability analyses used in this study were internal consistencies and test-retest reliability. Results: The Malay version of IWQOL-Lite showed good psychometric properties whereby the content validity was sufficient as measured by expert panels. The mean score of all IWQOL-Lite domains were able to discriminate between different BMI groups. Good internal consistency was demonstrated by Cronbach alpha of 0.936. Test-retest reliability ranged from 0.828 to 0.932. The physical function score (IWQOL-Lite) correlated positively with Physical Component Summary of Short Form-36 questionnaire. Exploratory factor analysis found that the questions loaded on five domains. Conclusion: The results suggest that the Malay version of IWQOL-Lite is a valid and reliable tool to measure quality of life among obese and overweight subjects in Malaysia.
9.The Malaysia Haze And Its Health Economy Impact: A Literature Review
Norfazillah Ab MANAN ; Mohd Rizal Abdul Manaf ; Rozita HOD
Malaysian Journal of Public Health Medicine 2018;18(1):38-45
Introduction: The transboundary smoke haze has become a major concern as it had a wide ranging impact in Southeast Asia from the aspect of public health to national economics. This review aims to synthesize available literature in epidemiology, economics and haze related studies to provide essential information for the valuation of health costs associated with haze in Malaysia. Methods: Evidence on health economic impact of haze was gathered by conducting a literature review and collecting information on the health effects of haze and the cost of it as well as the hospitalization cost from medical illnesses and hospital admissions due to haze. Articles were taken from those that were published from 1999 to 2016.Results: The 1997 Asian Haze episode has caused increasing trend of prematurity of mortality and respiratory problems and several series of haze later had caused increased number of hospitalization. The cost impact on hospital admission ranges from MYR1.8 million in 2005 to MYR118.9 million in 2013. During the 1997 haze, the incremental cost of illness (COI) was noted to be MYR 21million and it shot up to MYR 410 million during the 2013 haze. Conclusion: The haze gives a serious health effect to our country and our neighbours. These health effect has caused a significant health economy impact which include rise in hospital admission cost and medication, incremental cost of illness and extend to cost of medical-related leaves taken and lead to loss of income opportunities.
10.What are the direct medical costs of managing Type 2 Diabetes Mellitus in Malaysia?
Feisul Idzwan Mustapha ; Soraya Azmi ; Mohd Rizal Abdul Manaf ; Zanariah Hussein ; Nik Jasmin Nik Mahir ; Fatanah Ismail ; Azimatun Noor Aizuddin ; Adrian Goh
The Medical Journal of Malaysia 2017;72(5):271-277
Introduction: An economic analysis was performed to
estimate the annual cost of diabetes mellitus to Malaysia.
Methods: We combined published data and clinical
pathways to estimate cost of follow-up and complications,
then calculated the overall national cost. Costs consisted of
diabetes follow-up and complications costs.
Results: Patient follow-up was estimated at RM459 per year.
Complications cost were RM42,362 per patient per year for
nephropathy, RM4,817 for myocardial infarction, RM5,345 for
stroke, RM3,880 for heart failure, RM5,519 for foot
amputation, RM479 for retinopathy and RM4,812 for cataract
extraction.
Conclusion: Overall, we estimated the total cost of diabetes
as RM2.04 billion per year for year 2011 (both public and
private sector). Of this, RM1.40 billion per year was incurred
by the government. Despite some limitations, we believe our
study provides insight to the actual cost of diabetes to the
country. The high cost to the nation highlights the
importance of primary and secondary prevention.
Diabetes Mellitus
;
Health Care Costs
;
Health Expenditures

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