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Bello KE, Kelechi IJ, David ZA, Omebije AP, Shueb RH, Mustaffa N. Comorbidities and Monitoring in Patients with Chronic Hepatitis B on Nucleos(t)ide Analogues Attending a Tertiary Hospital in Malaysia, Southeast Asia: A Critical Perspective. Malays J Med Sci 2024; 31:149-161. [PMID: 39247116 PMCID: PMC11376997 DOI: 10.21315/mjms2024.31.4.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 03/15/2024] [Indexed: 09/10/2024] Open
Abstract
Background Chronic hepatitis B (CHB) is a significant global public health concern in Malaysia. It is a potentially life-threatening liver disease caused by the hepatitis B virus (HBV), which can lead to long-term complications such as cirrhosis, liver failure and hepatocellular carcinoma. In managing CHB, nucleos(t)ide analogues (NAs) have become the preferred treatment due to their ability to suppress viral replication and prevent disease progression. The question of liver-associated comorbidities related to patients with CHB on NAs remains unresolved in Malaysia despite the impending burden of CHB in the country. This study intends to address this and related aspects. Method We assessed 136 CHB patients on NAs in one centre, the Hospital Universiti Sains Malaysia. Demographic and epidemiological data on the treatment, concomitant disease and monitoring strategies were collected and analysed. Result Patients on NAs aged 50 years old-70 years old had the highest proportion of CHB (45.59%), with males representing 61.03% of that age group. There was a statistical significance in CHB acquisition and presence of comorbidities at P > 0.005. Our cohort displayed seven comorbidities (diabetes, obesity, rheumatoid diseases, renal impairment, spontaneous bacterial peritonitis, hypertension, non-hepatocellular malignancies and carcinoma); hypertension had the highest incidence (69.12%), while renal impairment had the lowest incidence (8.09%). Whole blood count, liver function and creatinine tests were the major monitoring tests used in over 90% of the cohort compared to viral load (6.1%). Conclusion Diabetes, hypertension and obesity were independent risk factors for acquiring liver cirrhosis and hepatocellular carcinoma. Malaysian CHB patients treated with NAs have several comorbidities that could affect disease outcomes. Therefore, careful monitoring is required.
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Affiliation(s)
- Kizito Eneye Bello
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
- Kogi State University (Prince Abubakar Audu University) Anyigba, Kogi State, Nigeria
| | | | - Zakari A David
- Kogi State University (Prince Abubakar Audu University) Anyigba, Kogi State, Nigeria
| | | | - Rafidah Hanim Shueb
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Kelantan, Malaysia
| | - Nazri Mustaffa
- Department of Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
- Hospital Universiti Sains Malaysia, Kelantan, Malaysia
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Gloriani NG, de Paz-Silava SLM, Allison RD, Takashima Y, Avagyan T. The Shifting Epidemiology of Hepatitis A in the World Health Organization Western Pacific Region. Vaccines (Basel) 2024; 12:204. [PMID: 38400187 PMCID: PMC10891653 DOI: 10.3390/vaccines12020204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 02/25/2024] Open
Abstract
Within the past few decades, improvement in sanitation and economic growth has driven a changing epidemiology of hepatitis A in the Western Pacific Region (WPR) of the World Health Organization (WHO). In this review, we gathered available published information on hepatitis A epidemiology of the countries in the WPR and reviewed the trends reported in the literature from the years 2000 to 2021. Many countries have shifted from high endemicity to low endemicity. Moreover, the administration of the hepatitis A vaccine among children in recent years has shifted disease susceptibility to the older population. Seroprevalence among children has decreased in most countries, while nearly 100% seropositivity is seen in mid adulthood. This is contrary to the epidemiology seen in previous decades when most children achieved immunity by age ten. This also presents a paradox in that better living conditions have caused more vulnerability to the older age groups who are at higher risk for severe disease. Given these trends, we recommend vaccination of vulnerable populations such as the older age groups and inclusion of the hepatitis A vaccine in government immunization programs.
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Affiliation(s)
- Nina G. Gloriani
- Institute of Pathology, St. Luke’s Medical Center, Quezon City 1112, Philippines;
| | | | - Robert D. Allison
- Accelerated Disease Control Branch, Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA;
| | - Yoshihiro Takashima
- Vaccine-Preventable Diseases and Immunization Unit, Division of Programmes for Disease Control, Western Pacific Regional Office, World Health Organization, Manila 1000, Philippines; (Y.T.); (T.A.)
| | - Tigran Avagyan
- Vaccine-Preventable Diseases and Immunization Unit, Division of Programmes for Disease Control, Western Pacific Regional Office, World Health Organization, Manila 1000, Philippines; (Y.T.); (T.A.)
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Hamzah N, Kassim NK, Omar J, Abdullah MS, Lee YY. Levels of PIVKA-II and alpha-fetoprotein in unresectable hepatocellular carcinoma compared to healthy controls and predictive values of both markers with radiological responses after loco-regional interventions. PeerJ 2023; 11:e15988. [PMID: 37780370 PMCID: PMC10538296 DOI: 10.7717/peerj.15988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/08/2023] [Indexed: 10/03/2023] Open
Abstract
Background The significance of the current study was to determine normative levels of PIVKA-II and AFP in patients with unresectable HCC and healthy participants. The second goal was to assess the roles of PIVKA-II and AFP in predicting radiological response after loco-regional therapy. Methods This prospective cohort study enrolled consecutive samples of HCC patients and healthy controls. Venous blood samples were obtained at baseline and after interventions to determine serum levels of PIVKA-II and AFP using the chemiluminescent microparticle immunoassay method. Radiologic responses were determined based on the WHO criteria. Results Fifty-four HCC patients (mean age 58.9 years, 49 males) and 40 healthy controls (mean age 33.5 years, 26 males) were recruited. The median serum levels of PIVKA-II and AFP in HCC vs. healthy controls were 988.4 vs. 24.2 mAU/ml and 13.6 vs. 1.7 ng/ml, respectively (both p < 0.001). With ROC curve analysis, the area under the curve (AUC) for PIVKA-II was 0.95 95% CI [0.90-0.99], and for AFP it was 0.98, 95% CI [0.95-1.0]). The cut-off value for PIVKA-II was 41.4 mAU/ml, and AFP was 4.8 ng/ml. PIVKA-II levels correlated significantly with radiological responses (r = 0.64, p = 0.02) but not AFP (r = 0.09, p = 0.2). Conclusion PIVKA-II and AFP levels are distinctive between unresectable HCC and healthy controls. However, PIVKA-II, not AFP, can predict the radiological response after loco-regional therapy.
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Affiliation(s)
- Norhanan Hamzah
- Department of Chemical Pathology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Nur Karyatee Kassim
- Department of Chemical Pathology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
- School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
- Hospital Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Julia Omar
- Department of Chemical Pathology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
- Hospital Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Mohd Shafie Abdullah
- Hospital Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
- Department of Radiology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Yeong Yeh Lee
- Hospital Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
- Department of Medicine, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
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Hernandez-Suarez G, Saha D, Lodroño K, Boonmahittisut P, Taniwijaya S, Saha A, Badur S, Poovorawan Y. Seroprevalence and incidence of hepatitis A in Southeast Asia: A systematic review. PLoS One 2021; 16:e0258659. [PMID: 34851983 PMCID: PMC8635355 DOI: 10.1371/journal.pone.0258659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 10/02/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND A previous review on hepatitis A virus (HAV) seroprevalence in 2005 categorized Southeast Asia as a low HAV endemicity region. In 2010, the World Health Organization modified this from low to low/medium endemicity, pointing out that these estimates were based on limited evidence. Since then, there has been no attempt to review HAV epidemiology from this region. We conducted a systematic review of literature to collect information on HAV incidence and seroprevalence in select countries in the Southeast Asian region, specifically, The Association of Southeast Asian Nations over the last 20 years. METHODOLOGY This systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. From the relevant articles, we extracted data and conducted a risk of bias assessment of individual studies. RESULTS The search yielded 22 and 13 publications on HAV seroprevalence and incidence, respectively. Overall, our findings point to a very low HAV endemicity profile in Thailand and Singapore and evidence of a shift towards low HAV endemicity in Indonesia, Lao People's Democratic Republic, Malaysia, the Philippines, and Vietnam. Only Singapore, Thailand, Malaysia, and the Philippines have existing HAV disease surveillance and reported incidence rates below 1 per 100,000. Several outbreaks with varying magnitude documented in the region provide insights into the evolving epidemiology of HAV in the region. Risk of bias assessment of studies revealed that the individual studies were of low to medium risk. CONCLUSIONS/SIGNIFICANCE The available HAV endemicity profiles in Southeast Asian countries, aside from Thailand, are limited and outdated, but suggest an endemicity shift in the region that is not fully documented yet. These findings highlight the need to update information on HAV epidemiology through strengthening of disease surveillance mechanisms to confirm the shift in HAV endemicity in the region.
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Affiliation(s)
| | - Debasish Saha
- GSK, Medical & Clinical Emerging Markets, Wavre, Belgium
| | - Kris Lodroño
- GSK, Medical Affairs Philippines, Manila, The Philippines
| | | | | | | | - Selim Badur
- GSK, Medical & Clinical Emerging Markets, Istanbul, Turkey
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Muhamad NA, Ab Ghani RM, Abdul Mutalip MH, Muhammad EN, Mohamad Haris H, Mohd Zain R, Abdullah N, Muhammad Azami NA, Abd Jalal N, Ismail N, Mhd Yusuf NA, Othman R, Kamalul Arifin AS, Abdullah MS, Kamaruddin MA, Abu Hassan MR, Aris T, Jamal R. Seroprevalence of hepatitis B virus and hepatitis C virus infection among Malaysian population. Sci Rep 2020; 10:21009. [PMID: 33273475 PMCID: PMC7713078 DOI: 10.1038/s41598-020-77813-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/21/2020] [Indexed: 11/25/2022] Open
Abstract
Malaysia is a country with an intermediate endemicity for hepatitis B. As the country moves toward hepatitis B and C elimination, population-based estimates are necessary to understand the burden of hepatitis B and C for evidence-based policy-making. Hence, this study aims to estimate the prevalence of hepatitis B and C in Malaysia. A total of 1458 participants were randomly selected from The Malaysian Cohort (TMC) aged 35 to 70 years between 2006 and 2012. All blood samples were tested for hepatitis B and C markers including hepatitis B surface antigen (HBsAg), anti-hepatitis B core antibody (anti-HBc), antibodies against hepatitis C virus (anti-HCV). Those reactive for hepatitis C were further tested for HCV RNA genotyping. The sociodemographic characteristics and comorbidities were used to evaluate their associated risk factors. Descriptive analysis and multivariable analysis were done using Stata 14. From the samples tested, 4% were positive for HBsAg (95% CI 2.7-4.7), 20% were positive for anti-HBc (95% CI 17.6-21.9) and 0.3% were positive for anti-HCV (95% CI 0.1-0.7). Two of the five participants who were reactive for anti-HCV had the HCV genotype 1a and 3a. The seroprevalence of HBV and HCV infection in Malaysia is low and intermediate, respectively. This population-based study could facilitate the planning and evaluation of the hepatitis B and C control program in Malaysia.
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Affiliation(s)
- Nor Asiah Muhamad
- Evidence-Based Healthcare Sector, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Rimah Melati Ab Ghani
- Evidence-Based Healthcare Sector, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Mohd Hatta Abdul Mutalip
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Eida Nurhadzira Muhammad
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Hasmah Mohamad Haris
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Rozainanee Mohd Zain
- Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurul Ain Mhd Yusuf
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Raihannah Othman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Mohd Shaharom Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Tahir Aris
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
- Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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Radzi Ah M, S Tan S, Mohamed R, Jaya F, K S, C Aun A, A Kutty G, S Wong H, Abdullah R, R Seman M, Al Mahtab M, Morad Z, Lim TO. Hepatitis Screening and Treatment Campaign in Malaysia-Validation of Low-cost Point of Care Screening Tests and Nucleic Acid Tests for Hepatitis B and C. Euroasian J Hepatogastroenterol 2019; 8:101-107. [PMID: 30828549 PMCID: PMC6395483 DOI: 10.5005/jp-journals-10018-1273] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 11/20/2018] [Indexed: 01/16/2023] Open
Abstract
Background Two major challenges in implementing budget-constrained Hepatitis screening and treatment campaign in Malaysia are the availability of low-cost point of care tests (POCT) and nucleic acid tests (NAT) for hepatitis C virus ribonucleic acid (HCV RNA) and hepatitis B virus dioxyribo nucleic acid (HBV DNA). We evaluated the performance of these tests in this study. Methods We conducted a cross-sectional study to evaluate the diagnostic performance of four POCT brands at 12 sites in Malaysia. We assessed the sensitivity and specificity of the POCTs for the detection of HBsAg and anti-HCV in a finger-stick capillary or venepuncture whole-blood samples compared with test results from lab-based enzyme immunoassay (EIA) or chemi-luminescence immunoassay (CLIA) assay as the reference standard. We also conducted a cross-sectional study on 30 to 139 serum specimen panel to evaluate the diagnostic performance of a low-cost in-house Applied Biosystem®TaqMan real-time polymerase chain reaction (PCR) assay (ABS) for the detection of HCV RNA and HBV DNA, compare with Roche Cobas® Ampliprep/TaqMan assay (COBAS). Results Between March and December 2017, we enroll 295 participants for the evaluation of POCT for HBsAg and another 307 participants for POCT anti-HCV evaluation. Three of the four POCT brands dropped out of evaluation early on account of sub-optimal sensitivity. The sensitivity of the remaining POCT for HBsAg was 95.2%and specificity 100%, while the POCT for anti-HCV has a sensitivity of 98.1% and specificity 100%. Hepatitis B virus dioxyribo nucleic acid and HCV RNA concentrations detected by the ABS were systematically higher than those measured by COBAS (mean bias +0.10 and +0.17 log10 IU/mL respectively). The 95% limits of agreement between the two assays are -1.28 to 1.47 log10 IU/mL for HBV DNA and –0.41 to 0.75 log10 IU/mL for HCV RNA. Conclusion We found adequate evidence for the diagnostic validity of a low-cost POCT for anti-HCV and HBsAg, as well as for an in-house nucleic acid tests (NAT), to provide support for their broader use in our Hepatitis screening and treatment campaign. Abbreviations ABS: Applied Biosystem®TaqMan real-time PCR assay, CI: Confidence interval, CLD: Chronic liver disease, CLIA: Chemi-luminescence immunoassay, COBAS: Roche Cobas® Ampliprep/ TaqMan assay, DAA: Direct Acting Anti-Viral drugs, EIA: Enzyme immunoassay, HBV: Hepatitis B virus, HCV: Hepatitis C virus, HFPM: Hepatitis Free Pahang Malaysia, LOA: Limits of agreement, LOD: Limit of detection, MOH: Ministry of Health, Malaysia, NAT: Nucleic Acid Tests, POCT: Point of Care Tests, SD: Standard deviation, WHO: World Health Organization How to cite this article: Radzi AHM, Tan SS, Mohamed R, Jaya F, Senamjit K, Aun AC, Kutty GA, Wong HS, Abdullah R, Seman MR, Mahtab MA, Morad Z, Lim TO. Hepatitis Screening and Treatment Campaign in Malaysia-Validation of Low-cost Point of Care Screening Tests and Nucleic Acid Tests for Hepatitis B and C. Euroasian J Hepatogastroenterol, 2018;8(2):101-107.
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Affiliation(s)
| | | | | | - Fauziah Jaya
- Gastroenterology and Hepatology, Hospital Raja Permaisuri Bainun, Ipoh Perak, Malaysia
| | - Senamjit K
- Hospital, Raja Permaisuri Bainun Ipoh, Perak, Malaysia
| | - Azlida C Aun
- Gastroenterology, Hospital Tengku, Ampuan Afzan, Kuantan, Pahang, Malaysia
| | | | | | | | - Mohd R Seman
- Hospital Tengku, Ampuan Afzan, Kuantan, Pahang, Malaysia
| | - Mamun Al Mahtab
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Zaki Morad
- National Kidney Foundation, Kuala Lumpur, Malaysia
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Rajamoorthy Y, Taib NM, Munusamy S, Anwar S, Wagner AL, Mudatsir M, Müller R, Kuch U, Groneberg DA, Harapan H, Khin AA. Knowledge and awareness of hepatitis B among households in Malaysia: a community-based cross-sectional survey. BMC Public Health 2019; 19:47. [PMID: 30630464 PMCID: PMC6327400 DOI: 10.1186/s12889-018-6375-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 12/27/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Hepatitis B (HepB) is a major public health concern in Malaysia yet little is known about knowledge and awareness of this infection in the country. Such information is essential for designing effective intervention strategies for HepB prevention and control. The aim of this study was to characterize knowledge and awareness regarding HepB in Malaysia and to identify their associated sociodemographic determinants. METHODS A community-based cross-sectional survey was conducted between January and May 2016 in Selangor state of Malaysia. A two-stage cluster random sampling design was used and one adult member of selected households was interviewed face-to-face. Logistic regression was used to estimate the differences in knowledge and awareness between groups. RESULTS A total of 764 households completed the interviews and were included in the final analysis. Only 36.9 and 38.8% of the participants had good knowledge and awareness, respectively. The factors associated with good knowledge were being in the 35-44 year age group, Malay ethnicity, high educational attainment and high family income. Being Chinese, being older and having high educational attainment were determinants of having good awareness towards HepB. Participants who had good knowledge were 2.5 times more likely to also have good awareness (OR: 2.41, 95% CI: 1.78-3.26, p < 0.001). CONCLUSIONS This study reveals a low level of knowledge and awareness of HepB among households in Malaysia. This finding highlights the need to improve public knowledge and awareness through well-designed programs targeting vulnerable groups in order to reduce hepatitis B virus transmission and achieve the governmental target of eliminating viral hepatitis as a public health concern by 2030.
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Affiliation(s)
- Yogambigai Rajamoorthy
- Department of Economics, Faculty of Accountancy and Management, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor Malaysia
| | - Niazlin Mohd Taib
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Subramaniam Munusamy
- School of Management and Business, Manipal International University, Putra Nilai, Negeri Sembilan Malaysia
| | - Samsul Anwar
- Department of Statistics, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh, Indonesia
| | | | - Mudatsir Mudatsir
- Department of Microbiology, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Jl. T. Tanoeh Abe, Darussalam, Banda Aceh, 23111 Indonesia
- Tropical Disease Centre, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia
| | - Ruth Müller
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe University, Frankfurt am Main, Germany
- Unit of Medical Entomology, Institute of Tropical Medicine, Antwerp, Belgium
| | - Ulrich Kuch
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe University, Frankfurt am Main, Germany
| | - David Alexander Groneberg
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe University, Frankfurt am Main, Germany
| | - Harapan Harapan
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Jl. T. Tanoeh Abe, Darussalam, Banda Aceh, 23111 Indonesia
- Tropical Disease Centre, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia Australia
| | - Aye Aye Khin
- Department of Economics, Faculty of Accountancy and Management, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor Malaysia
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8
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Rajamoorthy Y, Radam A, Taib NM, Rahim KA, Wagner AL, Mudatsir M, Munusamy S, Harapan H. The relationship between perceptions and self-paid hepatitis B vaccination: A structural equation modeling approach. PLoS One 2018; 13:e0208402. [PMID: 30521602 PMCID: PMC6283584 DOI: 10.1371/journal.pone.0208402] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 11/15/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Malaysia has a comprehensive, publicly-funded immunization program for hepatitis B (HepB) among infants, but adults must pay for the vaccine. The number of HepB carriers among adults is expected to increase in the future; therefore, we examined the impact of five constructs (cues to action, perceived barriers, perceived benefit, perceived severity, and perceived susceptibility) on adults' willingness to pay (WTP) for HepB vaccine; secondarily, we examined the association between perceived barriers and perceived benefits. METHODS Adults were selected through a stratified, two-stage cluster community sample in Selangor, Malaysia. The reliability, convergent validity, and discriminant validity of the measurement model were assessed before implementing a partial least squares structural equation model (PLS-SEM) to evaluate the significance of the structural paths. RESULTS A total of 728 participants were enrolled. The five constructs all showed adequate internal reliability, convergent validity, and discriminant validity. There was a significant, positive relationship to WTP from constructs (perceived barriers [Path coefficient (β) = 0.082, P = 0.036], perceived susceptibility [β = 0.214, P<0.001], and cues to action [β = 0.166, P<0.001]), and the model all together accounted for 8.8% of the variation in WTP. There was a significant, negative relationship between perceived barriers and perceived benefit [β = -0.261, P<0.001], which accounted for 6.8% of variation in perceived benefit. CONCLUSIONS Policy and programs should be targeted that can modify individuals' thoughts about disease risk, their obstacles in obtaining the preventive action, and their readiness to obtain a vaccine. Such programs include educational materials about disease risk and clinic visits that can pair HepB screening and vaccination.
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Affiliation(s)
- Yogambigai Rajamoorthy
- Department of Economics, Faculty of Accountancy and Management, Universiti Tunku Abdul Rahman, Kajang, Selangor, Malaysia
- Department of Economics, Faculty of Economics and Management, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Alias Radam
- Department of Economics, Faculty of Economics and Management, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Niazlin Mohd Taib
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Khalid Ab Rahim
- Department of Economics, Faculty of Economics and Management, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Abram Luther Wagner
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Mudatsir Mudatsir
- Medical Research Unit, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
- Department of Microbiology, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
| | - Subramaniam Munusamy
- Department of Economics, Faculty of Economics and Management, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- School of Management and Business, Manipal International University, Nilai, Negeri Sembilan, Malaysia
| | - Harapan Harapan
- Medical Research Unit, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
- Tropical Disease Centre, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia, Australia
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Hudu SA, Niazlin MT, Nordin SA, Tan SS, Omar H, Shahar H, Mutalib NA, Sekawi Z. Genetic diversity of hepatitis B co-infection with hepatitis C, D and E viruses among Malaysian chronic hepatitis B patients. Afr Health Sci 2018; 18:1117-1133. [PMID: 30766578 PMCID: PMC6354894 DOI: 10.4314/ahs.v18i4.33] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Hepatitis B virus co-infection with other strains of viral hepatitis is associated with increased risk of liver cirrhosis and hepatic decompensation. OBJECTIVES This is a prevalence study that assessed the genetic diversity of chronic hepatitis B patients and coinfection. METHODS Chronic hepatitis B patients enrolled in this study were tested for antibodies of other hepatitis viruses using ELISA kits. Patient clinical profiles were collected and partial genes of HBV, HCV, and HEV were amplified, sequenced, and analyzed using phylogenetic analysis. The associations between variables were determined using the chi-squared test. RESULTS Of the 82 patients recruited for this study, 53.7% were non-cirrhotic, 22.0% cirrhotic, 20.7% acute flare and 3.7% hepatocellular carcinoma. Majority (58%) of patients had a high level of ALT (≥34 U/L). Sequence analysis showed HBV (63.9%) belonged to genotype B, HEV belonged to genotype 4 while HCV belonged to genotype 3a and the genotypes were found to be significantly associated with the clinical stage of the patients (χ2=56.632; p<0.01). Similarly, Hepatitis B e antigen was also found to be significantly associated with the clinical stage of infection (χ2=51.952; p<0.01). CONCLUSION This study revealed that genetic diversity was found to have a significant impact on the severity of infection.
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Affiliation(s)
- Shuaibu Abdullahi Hudu
- Department of Medical Microbiology and Parasitology, Faculty of Basic Medical Sciences, College of Health Sciences, Usmanu Danfodiyo University Sokoto, 840232 Sokoto State, Nigeria
| | - Mohd Taib Niazlin
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra Malaysia
| | - Syafinaz Amin Nordin
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra Malaysia
| | - Soek Siam Tan
- Department of Hepatology, Selayang Hospital, Lebuh Selayang Batu Cave Selangor, Malaysia
| | - Haniza Omar
- Department of Hepatology, Selayang Hospital, Lebuh Selayang Batu Cave Selangor, Malaysia
| | - Hamiza Shahar
- Department of Hepatology, Selayang Hospital, Lebuh Selayang Batu Cave Selangor, Malaysia
| | - Noor Aliza Mutalib
- Department of Hepatology, Selayang Hospital, Lebuh Selayang Batu Cave Selangor, Malaysia
| | - Zamberi Sekawi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra Malaysia
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