Displaying publications 1 - 20 of 1497 in total

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  1. AL-Battawi, S., Hameed, S., Ng, E.S.C., Amini, F.
    JUMMEC, 2018;21(2):45-52.
    MyJurnal
    Graft-versus-host Disease (GVHD) is the main cause of morbidity and mortality after allogeneic hematopoietic
    stem cell transplantation (alloHSCT). In spite of immune-suppressive prophylaxis, most survivors suffer from
    acute and chronic GVHD (aGVHD and cGVHD). The outcome of alloHSCT may be affected by the presence of
    single nucleotide polymorphism (SNP) in non-HLA genes including those involved in innate immune responses.
    This study aimed to evaluate the impact of cytotoxic T-lymphocyte antigen-4 (CTLA-4) and caspase recruitment
    domain 15 (NOD2/CARD15) gene polymorphisms on the incidence and severity of aGVHD and cGVHD following
    alloHSCT. A structured literature review was carried out using various keywords and MESH terms such as
    stem cell transplantation, allogenic haematopoietic stem cell transplantation, GVHD, and non-HLA gene
    polymorphism, in PubMed, Google Scholar and Cochrane Database. A total of 8 studies that met inclusion
    criteria (English publications from 2006 to 2017) were included. Ten SNPs in CTLA-4 gene and three SNPs in
    NOD2/CARD15 gene were tested in patients with underlying haematological malignancies. Four studies tested
    the SNPs of CTLA-4 gene and two were found to have an association with CTLA-4 SNPs (rs3087243, rs231775)
    and increased incidence of aGVHD. The other four studies tested the SNPs of NOD2/CARD15 gene and one
    found an association between SNP13 and increased incidence of aGVHD. None of these eight studies found
    any effect on severity of GVHD. In conclusion, two SNPs in CTLA-4 and one SNP in NOD2/CARD15 increased
    the incidence of aGVHD but not its severity. The higher incidence of aGVHD in studies with larger sample size
    could support the impact of SNPs in the outcome of alloHSCT. However, due to the heterogeneity of studies in
    regard to the age of patients and donor, and conditioning regimen, it is difficult to draw a definite conclusion.
    Matched MeSH terms: Incidence
  2. ALIATULNAJIHA AYUB, MOHD ASAMUDIN A RAHMAN
    MyJurnal
    A numerical study is conducted to determine the Vortex Induced Motion (VIM) effects on Deep-Draft Semi-Submersibles (DDSS). The VIM phenomena is a crucial problem that can cause severe impact on the fatigue life of mooring risers in DDSS. Therefore, a comprehensive numerical simulation is conducted using the Acusolve computational fluid dynamics (CFD) software. Five models of immersed columns with different aspect ratios (ie. 0.6, 0.8, 1.0, 1.2 and 1.4) are numerically investigated under two different incidence angles, which are 0° and 45°. The transverse and in-line vibration amplitude, amplitude of lift force coefficient and vortex shedding are analyzed. The numerical measurements are obtained to see the response of horizontal plane motions, which are transverse, in line and yaw motions. This study with detailed numerical results from parametric data will contribute future studies and the comparisons are made to demonstrate the capability of the present CFD approach.
    Matched MeSH terms: Incidence
  3. Ab Ghani A, Nayan SA, Kandasamy R, Rosman AK, Ghani AR
    Malays J Med Sci, 2016 Nov;23(6):113-117.
    PMID: 28090185 MyJurnal DOI: 10.21315/mjms2016.23.6.12
    The annual incidence of intracranial aneurysm in Malaysia is estimated to be 1.1-1.7 per 100,000 population based on a study done conducted in 1988. Since then, little epidemiological research has been conducted in Malaysia, and the real incidence is therefore probably unreported despite advancements in the diagnosis and treatment of this disorder. Intracranial aneurysm may be treated by microsurgical clipping or embolisation depending on its location and the surgeon's preference. This study aims to report the characteristics and outcomes of patients with a clipped anterior circulation aneurysm in Hospital Sungai Buloh.
    Matched MeSH terms: Incidence
  4. Ab Ghani N
    MyJurnal
    Accidental poisoning in children is a preventable condition. It is a problem mainly in children aged 1 to 4 years. This is a descriptive study of accidental poisoning in children below 12 years old admitted to Hospital Seremban from October 15, 1994 to October 14, 1995. A major cause of household accidental poisoning was kerosene ingestion (25%) followed by ingestion of medications (22%), liniment methyl salicylate (12 %), mothballs (12%) and hypochlorinate solution (9%). There was a higher incidence of poisoning in males (50.8%), among Indians (41.2%) and in children from lower social classes (67%). A greater proportion of the accident occurred when the child was taken care by the parents (53 %) and in the house (80%). Most of the poison was ingested from its original package (81%). The immediate action taken was sending the child to the hospital (75%) without carrying out other actions such as washing the child’s mouth. The delay of sending the child to hospital was due to husband not at home (57%). Most of the cases (72.1 %) were discharged well within 1-2 days following admission.
    Matched MeSH terms: Incidence
  5. Ab Hamid N, Mohd Noor SN, Susubi J, Isa NR, Md Rodzay R, Bachtiar Effendi AM, et al.
    Heliyon, 2020 Jan;6(1):e03230.
    PMID: 31993521 DOI: 10.1016/j.heliyon.2020.e03230
    In recent decades, dengue incidence has trended upward worldwide causing urgent needs for new or modified vector control methods. We modified the existing indoor residual spraying (IRS) method by applying insecticide on the outer walls of building structures in an outdoor residual spraying (ORS) study. A semi-field study was conducted to investigate the bio-efficacy of two different deltamethrin formulations: K-Othrine® Polyzone, new polymer-enhanced deltamethrin formulated as a suspension concentrate (SC-PE), and K-Othrine® WG 250, traditional deltamethrin formulated as water dispersible granule (WG). The residual bio-efficacy of deltamethrin SC-PE was compared to deltamethrin WG on finished cement surfaces applied to the outer walls at the Institute for Medical Research (IMR), Malaysia. Standard WHO cone wall bioassays were adapted to evaluate the effective duration of action of these deltamethrin formulations against susceptible laboratory-reared and wild, free-flying Aedes aegypti and Ae. albopictus. Analyses of bioassay results showed that deltamethrin SC-PE 30 mg/m2 has improved longevity in comparison to deltamethrin WG 30 mg/m2. Deltamethrin SC-PE 30 mg/m2 was effective until week 17 (producing > 80% mortality), surpassing deltamethrin WG 30 mg/m2 which only lasted until week 10. This was supported by post-hoc test analyses which demonstrated that deltamethrin SC-PE 30 mg/m2 produced the highest mean of mortality in laboratory-reared Aedes species and the wild Ae. albopictus. However, the effective duration of action of deltamethrin SC-PE (17 weeks) was less than the recommended period by WHO (6 months) but was reasonable given that the spraying was undertaken outdoor. This preliminary data could be of use for the deployment of locally adapted ORS operation in controlling dengue.
    Matched MeSH terms: Incidence
  6. Ab Hamid S, Joshi S
    Oxf Med Case Reports, 2019 Apr;2019(4):omy137.
    PMID: 31049209 DOI: 10.1093/omcr/omy137
    Giant coronary artery aneurysms are rare, with reported incidence of 0.02-0.2% (Morita H, Ozawa H, Yamazaki S, Yamauchi Y, Tsuji M, Katsumata T, et al. A case of giant coronary artery aneurysm with fistulous connection to the pulmonary artery: a case report and review of the literature. Intern Med. 2012; 51:1361-6.). Multiple giant aneurysms involving all three coronary arteries are even rarer. We report a rare case of multiple giant aneurysms involving the right coronary, left anterior descending and left circumflex arteries, supplemented with excellent multimodality imaging representations, i.e. plain radiograph, echocardiography, magnetic resonance imaging and computed tomography coronary angiogram.
    Matched MeSH terms: Incidence
  7. Ab Rahman AF
    Hum Exp Toxicol, 2002 Jul;21(7):377-81.
    PMID: 12269700
    A retrospective review of medical records was carried out to determine the pattern of drug and chemical poisoning cases admitted to a teaching hospital in Malaysia. Medical records of patients admitted during the period January 1987 to December 1995 were reviewed. They accounted for 0.2% of total admissions during the period. While all ages were represented, there was predominance of children, which showed little change throughout the nine-year period. Of all cases of poisoning, 77.8% were unintentional, 12.6% intentional and 9.6% were undetermined. Kerosene, pesticides and medicinal substances remained the common agents associated with poisoning. A significant number of patients sought treatment elsewhere before being admitted to the hospital. Of those who came directly to the hospital, many were presented late in the course of their poisoning. Only seven patients died and none were children. This study supports the need for greater emphasis on prevention of poisoning in children and among farmers in the state.
    Matched MeSH terms: Incidence
  8. Abai G, Henry J, Lian CB, Wee ASF, Bili H, Ratu I
    Int J Public Health Res, 2011;1(2):92-99.
    MyJurnal
    Introduction Neonatal jaundice occurs in about 60% of newborns. If not managed properly, it can progress to severe neonatal jaundice (SNNJ) leading to death or permanent disability. The incidence of SNNJ in Kuching District increased from 119.3 per 100,000 live births in 2005 to 123.3 per 100,000 live births in 2008, which was above the Standard National QAP Indicator of 100 per 10,000 live births. SNNJ can be prevented by early detection and proper management of neonatal jaundice. The objective is to increase the knowledge and practise of early detection of neonatal jaundice by nurses in Kuching District. Methods This was an interventional study covering a period of six months. The sample comprised 113 nurses of all categories working in urban and rural maternal and child health clinics in Kuching District. Tools used in the study were self-administered questionnaires in English and Bahasa Malaysia. The preintervention survey started in July 2009 while the post-intervention survey was done in January 2010. The interventions were done through Continuing Nursing Education sessions and included new nursing formats and new reporting procedures. New vehicles were also provided for home nursing. Data was collected and analyzed using MS Excel program. Results The pre-intervention survey on nurses showed that only 56.6% were able to identify the risk of factors causing jaundice; 94.6% able to define jaundice; 41.5% able to detect jaundice while 70.8% knew sign of Kernicterus. In term of recommended post natal nursing schedule only 40.7% able to practice the schedule while only 69.0% able to give advice on management of jaundice. Post intervention; 63.2% of nurses were able to identify the risk factors causing jaundice; 97.2% able to define jaundice while 97.2% were able to detect jaundice and 88.6% know sign of Kernicterus. On recommended post natal nursing schedule, 49.9 % practice the recommended schedule while 92.0% were able to give advice to mother on management of jaundice. The incident of jaundice of Severe Neonatal Jaundice dropped to 78 per 100,000 live births in 2010.
    Conclusions The study shows that the interventions taken helped to improve the knowledge and practice of recommended measures to detect neonatal jaundice early. Stronger emphasis must be placed on using the new reporting procedures and new nursing sheets. Continuous monitoring through regular nursing audits by clinic supervisors is also essential to reduce the incidence of SNNJ. Provision of vehicles for all busy maternal and child health clinics for home nursing care is highly recommended.
    Matched MeSH terms: Incidence
  9. Abas AB, Mohd Said DA, Aziz Mohammed MA, Sathiakumar N
    Am. J. Ind. Med., 2013 Jan;56(1):65-76.
    PMID: 22544443 DOI: 10.1002/ajim.22056
    BACKGROUND: In Malaysia, surveillance of fatal occupational injuries is fragmented. We therefore analyzed an alternative data source from Malaysia's Social Security organization, the Pertubuhan Keselamatan Sosial (PERKESO).
    METHODS: We conducted a secondary data analysis of the PERKESO database comprised of 7 million employees from 2002 to 2006.
    RESULTS: Overall, the average annual incidence was 9.2 fatal occupational injuries per 100,000 workers. During the 5-year period, there was a decrease in the absolute number of fatal injuries by 16% and the incidence by 34%. The transportation sector reported the highest incidence of fatal injuries (35.1/100,000), followed by agriculture (30.5/100,000) and construction (19.3/100,000) sectors. Persons of Indian ethnicity were more likely to sustain fatal injuries compared to other ethnic groups.
    CONCLUSIONS: Government and industry should develop rigorous strategies to detect hazards in the workplace, especially in sectors that continuously record high injury rates. Targeted interventions emphasizing worker empowerment coupled with systematic monitoring and evaluation is critical to ensure success in prevention and control measures.
    Matched MeSH terms: Incidence
  10. Abas AB, Said AR, Mohammed MA, Sathiakumar N
    Int J Occup Environ Health, 2011 Jan-Mar;17(1):38-48.
    PMID: 21344818
    We analyzed data on non-fatal occupational injuries reported to Malaysia's social security organization from 2002 to 2006. There was a decrease in both the absolute number and the incidence rates of these injuries over time. About 40% of cases occurred in the manufacturing sector followed by the service (17%) and trading (17%) sectors. The agriculture sector reported the highest incidence rate (24.1/1,000), followed by the manufacturing sector subcategories of wood-product manufacturing (22.1/1,000) and non-metallic industries (20.8/1,000). Men age 40 to 59 and persons of Indian ethnicity had a greater tendency to sustain injuries. Government and non-governmental organizations should strive to develop strategies to reduce the occupational injuries targeting vulnerable groups. Enforcement of safety measures will further play an important role to ensure that both employees and employers take special precautions to address workplace hazards.
    Matched MeSH terms: Incidence
  11. Abas AB, Said AR, Mohammed MA, Sathiakumar N
    Int J Occup Environ Health, 2008 Oct-Dec;14(4):263-71.
    PMID: 19043913
    In the absence of systematic occupational disease surveillance, other data collected by governmental agencies or industry is useful in the identification of occupational diseases and their control. We examined data on occupational diseases reported by non-governmental employees to the national workers' social security organization in Malaysia, 2002-2006. The overall incidence rate of occupational disease was 2.8 per 100,000 workers. There was an increase in the annual number and rates of occupational disease over time. The most frequently reported conditions were hearing impairment (32%) and musculoskeletal disorders (28%). Workers in the non-metallic manufacturing industry had the highest average incidence rate of hearing impairment (12.7 per 100,000 workers) and musculoskeletal disorders (3.5 per 100,000 workers), compared to all other industries. Preventive measures should focus on safety education, engineering control and workplace ergonomics. Enforcing workplace standards and incorporating an ongoing surveillance system will facilitate the control and reduction of occupational disease.
    Matched MeSH terms: Incidence
  12. Abbasi S, Rasouli M
    PMID: 29353131 DOI: 10.1016/j.ejogrb.2017.10.020
    OBJECTIVES: Fingerprints have so far been used for determining the basis of certain malignant diseases, with positive outcomes. Considering the high rates of cancer-related mortality in Iran, this study was conducted for the purpose of examining the dermatoglyphic pattern of fingers in patients with gynecological cancers as compared to healthy people.

    STUDY DESIGN: The present study was conducted on 151 women with gynecological cancers as the case group and 152 healthy women with no history of such cancers as control group. The dematographic details of participants from both control and case groups were collected using a checklist, and the pattern of their fingerprints was prepared and examined. The data were analyzed for their significance using chi-square test and t- test. Odds ratio with 95% confidence intervals were calculated.

    RESULTS: Dermatoglyphic analysis showed that arch and loop patterns significantly changed in cases group as compared to control. However, the odds ratio suggested that loop pattern in 6 or more fingers might be a risk factor for developing gynecological cancers.

    CONCLUSION: Our results showed that there is an association between fingerprint patterns and gynecological cancers and so, dermatoglyphic analysis may aid in the early diagnosis of these cancers.

    Matched MeSH terms: Incidence
  13. Abbavannagari Bharath Kumar, Marakanam Srinivasan Umashankar, Sandeep Podda
    MyJurnal
    Introduction: Diabetes is a chronic metabolic disease and noted to be incidence is intensifying globally and contem- plated as epidemic. The study is aimed to assess the coronary artery disease risk profile associated diabetes mellitus patient and to identify the clinical pharmacist care services in the management and to control the risk burden in the clinical practice. Method: A prospective observational study was conducted among the consecutive patients of coronary artery disease associated diabetic patients in a tertiary care teaching hospital over 6 months period. A sam- ple of 150 patients was recruited in the study. Data analysis was done with graph pad prism software 5.01. Results: The present study revealed that coronary artery disease in diabetes was more prevalent in age group between 41-50 years. About 54.66% patients with hyperlipidemia were at risk to develop the coronary artery disease complication. Glycated hemoglobin test was detected in 40% of the patient showing abnormal levels and around 43.33% of patient had an abnormal fasting blood sugar level. The study showed only 32% of patients was prescribed Insulin & oral hy- poglycemic agents and 13 % were treated with statins. Conclusion: It could be concluded that the causative factors should be controlled and treated with an early need for amalgamation of clinical pharmacist care services with the health care team on life style modification counseling could ultimately improve the patient health outcomes and also lowers progression of coronary artery disease risk complications among diabetic patients.
    Matched MeSH terms: Incidence
  14. Abd Raman HS, Tan S, August JT, Khan AM
    PeerJ, 2020;7:e7954.
    PMID: 32518710 DOI: 10.7717/peerj.7954
    Background: Influenza A (H5N1) virus is a global concern with potential as a pandemic threat. High sequence variability of influenza A viruses is a major challenge for effective vaccine design. A continuing goal towards this is a greater understanding of influenza A (H5N1) proteome sequence diversity in the context of the immune system (antigenic diversity), the dynamics of mutation, and effective strategies to overcome the diversity for vaccine design.

    Methods: Herein, we report a comprehensive study of the dynamics of H5N1 mutations by analysis of the aligned overlapping nonamer positions (1-9, 2-10, etc.) of more than 13,000 protein sequences of avian and human influenza A (H5N1) viruses, reported over at least 50 years. Entropy calculations were performed on 9,408 overlapping nonamer position of the proteome to study the diversity in the context of immune system. The nonamers represent the predominant length of the binding cores for peptides recognized by the cellular immune system. To further dissect the sequence diversity, each overlapping nonamer position was quantitatively analyzed for four patterns of sequence diversity motifs: index, major, minor and unique.

    Results: Almost all of the aligned overlapping nonamer positions of each viral proteome exhibited variants (major, minor, and unique) to the predominant index sequence. Each variant motif displayed a characteristic pattern of incidence change in relation to increased total variants. The major variant exhibited a restrictive pyramidal incidence pattern, with peak incidence at 50% total variants. Post this peak incidence, the minor variants became the predominant motif for majority of the positions. Unique variants, each sequence observed only once, were present at nearly all of the nonamer positions. The diversity motifs (index and variants) demonstrated complex inter-relationships, with motif switching being a common phenomenon. Additionally, 25 highly conserved sequences were identified to be shared across viruses of both hosts, with half conserved to several other influenza A subtypes.

    Discussion: The presence of distinct sequences (nonatypes) at nearly all nonamer positions represents a large repertoire of reported viral variants in the proteome, which influence the variability dynamics of the viral population. This work elucidated and provided important insights on the components that make up the viral diversity, delineating inherent patterns in the organization of sequence changes that function in the viral fitness-selection. Additionally, it provides a catalogue of all the mutational changes involved in the dynamics of H5N1 viral diversity for both avian and human host populations. This work provides data relevant for the design of prophylactics and therapeutics that overcome the diversity of the virus, and can aid in the surveillance of existing and future strains of influenza viruses.

    Matched MeSH terms: Incidence
  15. Abd-Rasid AF, Bajuri MY
    Malays Orthop J, 2020 Jul;14(2):130-133.
    PMID: 32983388 DOI: 10.5704/MOJ.2007.011
    Peroneal tendon tear is a relatively common cause of lateral ankle pain but often missed due to mixed presentation or low index of suspicion. Left untreated, peroneal injuries can lead to persistent ankle pain, instability and ultimately substantial functional disabilities. An isolated peroneus longus tear is rare with the lowest incidence rate compared to isolated peroneus brevis tear and mixed tear of both peroneal tendon. This is a case report of a 49-year-old lady with a chronic left ankle pain who ultimately underwent surgery for an isolated peroneus longus tear.
    Matched MeSH terms: Incidence
  16. Abdelrahim LM, Peh SC, Kallarakkal TG
    Malays J Pathol, 2018 Apr;40(1):49-56.
    PMID: 29704384
    INTRODUCTION: Epstein-Barr virus (EBV) might be an aetiological agent involved in the pathogenesis of certain Non-Hodgkin's Lymphomas (NHLs). EBV infection has been diagnosed by serologic testing within the tumour biopsies of patients with NHL. However, the association between EBV and NHL is inconsistent with a preference for certain anatomic sites, histologic subtypes and immunosuppressed patients. The objective of this study was to characterise the B-cell NHLs of the oral cavity and maxillofacial region using histological and immunophenotypical techniques and to determine its association with EBV infection.

    MATERIALS AND METHODS: This was a descriptive cross-sectional study that included 14 cases of B-cell NHLs of the oral cavity and maxillofacial region. The haematopoietic and lymphoid tissue tumours classification of WHO was used to categorize the cases. In-situ hybridisation for EBV-encoded RNA was performed to confirm the EBV infection.

    RESULTS: The average age of the patients included in the study was found to be 48.8 ± 23 years with a higher female to male ratio (1.3:1). Our study suggested that diffuse large B-cell lymphomas (DLBCLs) and Burkitt's lymphomas (BLs) constitute the predominant subtypes of lymphomas affecting the oral cavity and maxillofacial regions.

    CONCLUSION: The findings from our study support the view that at least a relatively smaller proportion of B-cell NHLs that occur in the oral cavity and maxillofacial region do not have a pathogenic association with EBV.

    Matched MeSH terms: Incidence
  17. Abdollahi F, Agajani-Delavar M, Zarghami M, Lye MS
    Iran J Psychiatry Behav Sci, 2016 Mar;10(1):e426.
    PMID: 31168307 DOI: 10.17795/ijpbs-426
    Background: Post-partum depression (PPD) can produce adverse symptoms that make motherhood one of the most tumultuous events in a female's life. First-time mothers who have problems adapting themselves to the mother's role are more vulnerable to PPD.

    Objectives: The current study aimed to explore the extent of social support and parental self-efficacy on PPD, this study was conducted among the first-time pregnant women.

    Patients and Methods: A prospective cohort study assessed the depressive symptoms and related factors among 838 first-time not depressed pregnant women from third trimester of pregnancy to 12 weeks postpartum who attended primary health centers (Jan to July 2009). The study employed Edinburgh postnatal depression scale, social support appraisals scale, network orientation scale, marital inventory, parental expectation survey and socio-demographic questionnaires. Logistic regression was used for data analysis.

    Results: The incidence of depression was 10.7% at three months post-partum. The adjusted odds ratio showed the PPD was associated with perceived social isolation (OR = 1.06; 95% CI = 1.01 - 1.12), lack of marital satisfaction (OR = 0.91; 95% CI = 0.86 - 0.97) and low parental self-efficacy (OR = 0.74; 95% CI = 0.65 - 0.85).

    Conclusions: A high incidence of PPD was identified among the first-time mothers which makes PPD one of the major health problems in females. The important effects of perceived social isolation, maternal parental self-efficacy, and marital satisfaction on reducing the risk of PPD should be considered.
    Matched MeSH terms: Incidence
  18. Abdul Halim Mansar, Muhammad Aadeel T., Khairul Osman, Sharin Iskandar, A.W.
    MyJurnal
    The abdominal pelvic cavity has always been regarded as one of the most vulnerable regions of the body. Injuries to this part have been known to be very serious. Based on this a retrospective study was performed on postmortem cases with abdominal and pelvic trauma from 1 October 2002 to 31 January 2003 at the Forensic Institute, Hospital Kuala Lumpur to determine the common pattern of abdomino-pelvic injuries, the injury’s relationship to epidemiological and socio-economic factors, risk organ within the abdominopelvic region and relationship between injuries and survival period. A total of 122 cases abdomino-pelvic were obtained stemming from medico legal postmortems procedures. Results indicated that those aged between 21 to 30 years (38.5%) had the highest incidence of this type of injury. Categorization based on gender showed that males (90.2%) dominated most of the cases. Prevalence based on socio-economic status showed that lower socioeconomy class (52.5%) had the highest incident. This was followed by the middle income (39.3%) and finally the higher income group. The most numerous type of trauma was non-penetrating trauma (94.3%). It was also found that victims with low injury severity score (ISS) had a longer survival period as compared to those with high ISS. It was also noted that victims with two or more region injuries either were spot dead or brought dead. The most common combination of injuries was abdomen, pelvic, chest and limb. In most blunt trauma cases majority of victims had one or two organ involvement while penetrating injuries were difficult to asses. The most common organ involved in this type of trauma was liver (72.1%), pelvic bone (47.5%) and spleen (43.4%). In conclusion, abdomino-pelvic injury is a serious condition and should not be overlooked. Proper attention towards their diagnosis and management is important and so any patient of head injury with coma must be considered as having intra-abdominal injury until proven otherwise.
    Matched MeSH terms: Incidence
  19. Abdul Mutalip MH, Mahmud MAF, Lodz NA, Yoep N, Muhammad EN, Ahmad A, et al.
    BMJ Open, 2019 01 21;9(1):e023359.
    PMID: 30670512 DOI: 10.1136/bmjopen-2018-023359
    INTRODUCTION: Leptospirosis is the most common zoonotic disease that causes morbidity and mortality worldwide. The disease can cause sporadic epidemics and recent epidemics have become more apparent in urban localities. There is lack of documented evidence on the specific risk factors of leptospirosis infection among the urbanites, thereby impeding initiatives for prevention in urban settings. We aim to systematically search published articles and synthesise evidence on the risk factors associated with leptospirosis infection among the susceptible populations in urban localities, particularly to identify the risk factors of non-recreational leptospirosis infection.

    METHODS AND ANALYSIS: We will conduct a systematic review of observational studies that investigated environmental risk factors of leptospirosis in urban localities. The search will be performed for any eligible articles from selected electronic databases from 1970 until May 2018. The study will include any studies that investigated risk factors of confirmed leptospirosis cases who acquired the infection in urban locality, particularly exposures from the non-recreational and non-water-related activities. Study selection and reporting will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and Meta-Analysis of Observational Studies in Epidemiology guideline. All data will be extracted using a standardised data extraction form and quality of the studies will be assessed using the Newcastle-Ottawa Scale guideline. Descriptive and meta-analysis will be performed by calculating the standardised median ORs and risk ratios for types of the non-recreational risk factors stratified by social, living conditions and environmental exposures, types of reservoirs and transmissions and types of activities and employments associated with leptospirosis infection in urban locality.

    ETHICS AND DISSEMINATION: No primary data will be collected thus no formal ethical approval is required. The results will be disseminated though a peer-reviewed publication and conference presentation.

    PROSPERO REGISTRATION NUMBER: CRD42018090820.

    Matched MeSH terms: Incidence
  20. Abdul Rahman HI, Shah SA, Alias H, Ibrahim HM
    Asian Pac J Cancer Prev, 2008 Oct-Dec;9(4):649-52.
    PMID: 19256754
    BACKGROUND: In Malaysia, acute leukemia is the most common cancer among children below the age of 15. A case-control study was here conducted for cases from the Klang Valley, Malaysia, who received treatment at the National University of Malaysia Hospital (HUKM) and Kuala Lumpur General Hospital (GHKL). The main objective was to determine any association with environmental factors.

    METHODS: Case subjects were children aged below 15 years and diagnosed with acute leukemia in HUKM and GHKL between January 1, 2001 and May 30, 2007. Control subjects were children aged below 15 years who were diagnosed with any non-cancerous acute illnesses in these hospitals. A total of 128 case subjects and 128 control subjects were enrolled in this study. The information was collected using a structured questionnaire and a global positioning system (GPS) device. All factors were analyzed using unmatched logistic regression.

    RESULTS: The analysis showed that the occurrence of acute leukemia among children was strongly determined by the following factors: family income (odds ratio (OR) 0.19, 95% confidence interval (CI): 0.09-0.42), father with higher social contact (OR 7.61, 95% CI: 3.78-15.4), number of elder siblings (OR 0.36, 95% CI: 0.18-0.77), father who smokes (OR 2.78, 95% CI: 1.49-5.16), and the distance of the house from a power line (OR 2.30, 95% CI: 1.18-4.49).

    CONCLUSIONS: Some socioeconomic, demographic, and environmental factors are strong predictors of the occurrence of acute leukemia among children in Klang Valley, Malaysia. In terms of environmental factors, it is recommended that future housing areas should be developed at least 200 m away from power lines.
    Matched MeSH terms: Incidence
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