Displaying publications 361 - 380 of 419 in total

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  1. Rahman SA, Hassan L, Epstein JH, Mamat ZC, Yatim AM, Hassan SS, et al.
    Emerg Infect Dis, 2013 Jan;19(1):51-60.
    PMID: 23261015 DOI: 10.3201/eid1901.120221
    We conducted cross-sectional and longitudinal studies to determine the distribution of and risk factors for seropositivity to Nipah virus (NiV) among Pteropus vampyrus and P. hypomelanus bats in Peninsular Malaysia. Neutralizing antibodies against NiV were detected at most locations surveyed. We observed a consistently higher NiV risk (odds ratio 3.9) and seroprevalence (32.8%) for P. vampyrus than P. hypomelanus (11.1%) bats. A 3-year longitudinal study of P. hypomelanus bats indicated nonseasonal temporal variation in seroprevalence, evidence for viral circulation within the study period, and an overall NiV seroprevalence of 9.8%. The seroprevalence fluctuated over the study duration between 1% and 20% and generally decreased during 2004-2006. Adult bats, particularly pregnant, with dependent pup and lactating bats, had a higher prevalence of NiV antibodies than juveniles. Antibodies in juveniles 6 months-2 years of age suggested viral circulation within the study period.
    Matched MeSH terms: Longitudinal Studies
  2. Zamri EN, Hoe VCW, Moy FM
    Ind Health, 2020 Jun 09;58(3):254-264.
    PMID: 31666460 DOI: 10.2486/indhealth.2019-0106
    Low back pain (LBP) is prevalent among workers both in developed and developing countries. School teachers represent a high proportion of the working population in Malaysia. However, there is a lack of longitudinal study on predictors and course of LBP among teachers. Therefore, this study aimed to determine the predictors and course of LBP among secondary school teachers. Longitudinal data of 701 teachers in Selangor, Malaysia were collected from May 2015 to October 2016. Associations between predictors and LBP were analysed using logistic regression and reported as odds ratio (OR) and 95% confidence interval (CI). At 12-month of follow-up, 44% (95%CI: 40.6%, 48.0%) of the participants reported having LBP. In the regression model that included all risk factors, only LBP at baseline (OR 10.43, 95%CI: 6.19, 17.58) was associated with LBP at 12-month follow-up. When LBP at baseline was removed from the model, anxiety symptom (OR 2.51, 95%CI: 1.19, 5.30) and lifting heavy weights (OR 4.16, 95%CI: 1.40, 12.30) were found to be significantly associated with LBP at 12-month follow-up. In conclusion, issues on anxiety and lifting heavy weights should be addressed to reduce the occurrence of LBP despite the presence of health condition itself (LBP at baseline).
    Matched MeSH terms: Longitudinal Studies
  3. Khan YH, Sarriff A, Adnan AS, Khan AH, Mallhi TH, Jummaat F
    Nephrology (Carlton), 2017 Jan;22(1):25-34.
    PMID: 26718476 DOI: 10.1111/nep.12713
    AIM: Despite increase global prevalence of End stage renal disease (ESRD) and subsequent need for renal replacement therapy (RRT), relatively little is known about disease progression and prognosis of earlier stages of CKD. Current study was conducted to examine rate of CKD progression, predictors of ESRD and death.

    METHODS: A total 621 patients with estimated glomerular filtration rate (eGFR) of 15-59ml/min/1.73m(2) (CKD stage 3 & 4) were selected and followed up for 10 years or until ESRD or death, whichever occurred first. Subjects who did not meet inclusion criteria were excluded (n=1474).

    RESULTS: Annual cumulative decline in eGFR was 3.01±0.40 ml/min/1.73m(2) . Overall disease progression was observed in 60% patients while 18% died. Among patients with CKD stage 3, 21% progressed to stage 4, 10% to stage 5ND (non-dialysis) and 31% to RRT while mortality was observed in 16% patients. On the other hand, 8% patients with CKD stage 4 progressed to stage 5ND, 31% to RRT and mortality was observed in 24% cases. Patients with CVD, higher systolic blood pressure, elevated phosphate levels, heavy proteinuria, microscopic hematuria and use of diuretics were more likely to develop ESRD. Advancing age, low eGFR, low systolic blood pressure, low hemoglobin and baseline diabetes were found to be significant predictors of mortality while being female reduced risk of mortality.

    CONCLUSION: Our data suggest that, in this CKD cohort, patients were more likely to develop ESRD than death. Prime importance should be given to mild forms of CKD to retard and even reverse CKD progression.

    Matched MeSH terms: Longitudinal Studies
  4. Abougalambou SS, Abougalambou AS
    Diabetes Metab Syndr, 2015 Apr-Jun;9(2):98-103.
    PMID: 25470640 DOI: 10.1016/j.dsx.2014.04.019
    BACKGROUND: Diabetic retinopathy (DR) is the leading cause of blindness in the United States and it is the leading cause of new cases of blindness in adults aged 20-74. It is estimated that about 20% of patients with type 2 DM have evidence of diabetic retinopathy at diagnosis with diabetes.
    OBJECTIVE: To evaluate the prevalence of DR and to determine risk factors related to diabetic retinopathy among type 2 diabetes patients attending endocrinology clinics at Hospital Universiti Sains Malaysia (HUSM).
    SUBJECTS AND METHODS: The study design was observational prospective longitudinal follow-up study, the study was conducted with sample of 1077 type 2 diabetes mellitus outpatient recruited via attended the diabetes clinics at HUSM. Diagnosis of retinopathy is based on finding the diagnostic signs of retinopathy on eye exams by fundoscopy. Logistic regression analysis was used to assess the independent variables that affect the development of retinopathy.
    RESULTS: The prevalence of retinopathy was 39.3%. It has been noticed from this study findings, that the progression of retinopathy is been influenced by five independent risk factors such as duration of diabetes, presence neuropathy, total cholesterol at second and third visit and createnine clearance.
    CONCLUSION: DR is highly prevalent among type 2 DM. The progression of retinopathy is been influenced by five independent risk factors such as duration of diabetes, presence neuropathy, total cholesterol at second and third visit and createnine clearance. DR is a serious diabetic complication and public health strategies are required in order to reduce its risk factors and decrease its prevalence.
    KEYWORDS: Prevalence; Retinopathy; Risk factors; Type 2 diabetes mellitus
    Study site: Endocrinology clinics, Hospital Universiti Sains Malaysia (HUSM), Kelantan, Malaysia
    Matched MeSH terms: Longitudinal Studies
  5. Chan CM, Wan Ahmad WA, Yusof MM, Ho GF, Krupat E
    Psychooncology, 2015 Jun;24(6):718-25.
    PMID: 25345781 DOI: 10.1002/pon.3714
    Distress and psychiatric morbidity in cancer patients are associated with poorer outcomes including mortality. In this study, we examined the prevalence of psychiatric morbidity and its association with cancer survival over time.
    Matched MeSH terms: Longitudinal Studies
  6. Shivashankar R, Kirk K, Kim WC, Rouse C, Tandon N, Narayan KM, et al.
    Diabetes Res Clin Pract, 2015 Feb;107(2):203-23.
    PMID: 25529849 DOI: 10.1016/j.diabres.2014.11.004
    To assess the extent to which people with diabetes in low- and middle-income countries (LMIC) of Asia and the Middle East met evidence-based care recommendations through a systematic review of published literature.
    Matched MeSH terms: Longitudinal Studies
  7. Hazreen MA, Su TT, Jalaludin MY, Dahlui M, Chinna K, Ismail M, et al.
    BMC Public Health, 2014;14 Suppl 3:S6.
    PMID: 25437068 DOI: 10.1186/1471-2458-14-S3-S6
    BACKGROUND: The National Health & Morbidity Survey (NHMS) IV (2011) observed that the prevalence of obese children aged less than 18 years in Malaysia is 6.1% compared to 5.4% overweight and obese in NHMS III (2006). As such, this observation is of public health importance as obesity is a forewarning risk factor for chronic diseases such as type-2 diabetes, cardiovascular diseases (CVD) and certain types of cancers. This MyHeART (Malaysian Health and Adolescents longitudinal Research Team) study aims to examine risk factors of non-communicable diseases (NCD) among adolescents.
    METHODS/DESIGN: The MyHeART study is longitudinal cohort study of 1361 schoolchildren (13-years old) attending 15 public secondary schools from the central (Kuala Lumpur and Selangor) and northern (Perak) regions of Peninsular Malaysia. The study used a stratified sampling design to select the study participants. Data collected at baseline included socio-economic, lifestyle (e.g. smoking, physical activity assessment, fitness assessment, seven-day diet history), and environmental information, anthropometric measurements, blood pressure, handgrip strength and bone mineral density. Blood samples for fasting blood glucose and lipid profiles, full blood count, renal profile, as well as bone profile and serum vitamin D were taken. This study cohort will be followed up again when participants turn 15, 17 and lastly, after a period of ten years (around the age of 27).
    RESULTS: Nine percent of the adolescents from this study were obese. More male participants smoked compared to female participants (15.4% vs. 4.7%). Adolescent males had higher fasting blood glucose but the female participants had lower high density lipoprotein (HDL-cholesterol) and higher low density lipoprotein (LDL-cholesterol). In addition, adolescents from the rural area had higher fasting blood glucose, diastolic blood pressure, total cholesterol and LDL-cholesterol.
    DISCUSSION: Our results demonstrated that adolescents from the rural area are at higher risk of NCDs compared to their urban counterpart. Tailor made public health interventions are highly recommended for adolescents as this may minimise the dreadful NCD burden in adulthood and health disparity between the rural and urban in the near future.
    Study name: Malaysian Health and Adolescents Longitudinal Research Team study (The MyHeART study)
    Matched MeSH terms: Longitudinal Studies
  8. Unniachan S, Bash LD, Khovidhunkit W, Sri RZ, Vicaldo E, Recto C, et al.
    Int J Clin Pract, 2014 Aug;68(8):1010-9.
    PMID: 24666791 DOI: 10.1111/ijcp.12407
    Guidelines emphasise the importance of low-density lipoprotein cholesterol (LDL-C) goals for cardiovascular risk reduction. Given the importance of association between high-density lipoprotein (HDL-C) and triglycerides (TG) normal levels and cardiovascular risk, there is an additional need to further evaluate diverse dyslipidaemic populations.
    Matched MeSH terms: Longitudinal Studies
  9. Loy SL, Jan Mohamed HJ
    Women Health, 2014;54(2):145-60.
    PMID: 24329183 DOI: 10.1080/03630242.2013.870632
    This study aimed to examine the associations among prenatal nicotine exposure, oxidative stress, and postpartum visceral fat among women exposed to secondhand smoke (SHS). The study was conducted in Kelantan, Malaysia, from April 2010 to December 2012. Blood samples were collected in the second and third trimesters from 135 healthy pregnant women who were followed-up at delivery, 2 months, 6 months and 12 months postpartum. Maternal hair nicotine and oxidative stress markers during pregnancy were measured. Visceral fat was assessed by bioelectrical impedance. Multiple linear regression analysis revealed that maternal hair nicotine concentration was associated with increased DNA damage (tail moment: β=0.580, p=0.001) and decreased glutathione peroxidase (β=-12.100; p=0.009) in the second trimester of pregnancy. Increased DNA damage, protein oxidation and total antioxidant capacity in the second trimester were associated with 2, 6, and 12 months postpartum visceral fat. No direct association was found between prenatal hair nicotine level and postpartum visceral fat; however, these results suggest that any relation of SHS to visceral adiposity may be indirect, mediated via enhanced oxidative stress.
    Matched MeSH terms: Longitudinal Studies
  10. Menon KC, Ferguson EL, Thomson CD, Gray AR, Zodpey S, Saraf A, et al.
    Nutrition, 2014 Mar;30(3):291-6.
    PMID: 24484679 DOI: 10.1016/j.nut.2013.08.015
    The aim of this study was to investigate the iron status of pregnant tribal women from Ramtek, Nagpur, Maharashtra, India using a combination of indices.
    Matched MeSH terms: Longitudinal Studies
  11. Lua PL, Talib NS
    Altern Ther Health Med, 2013;19(4):28-42.
    PMID: 23981370
    Substance abuse has been prevalent in Malaysia for many years and currently represents one of the main concerns to its society. The limitations of conventional therapies have resulted in efforts to explore the potentia of complementary therapies in the management of drug addiction. The evidence for auricular acupuncture (AA) as a potential complementary therapy for drug addiction is still limited and inconclusive.
    Matched MeSH terms: Longitudinal Studies
  12. Topakian R, King A, Kwon SU, Schaafsma A, Shipley M, Markus HS, et al.
    Neurology, 2011 Aug 23;77(8):751-8.
    PMID: 21849657 DOI: 10.1212/WNL.0b013e31822b00a6
    Better methods are required to identify patients with asymptomatic carotid stenosis (ACS) at risk of future stroke. Two potential markers of high risk are echolucent plaque morphology on carotid ultrasound and embolic signals (ES) in the ipsilateral middle cerebral artery on transcranial Doppler ultrasound (TCD). We explored the predictive value of a score based on these 2 measures in the prospective, observational, international multicenter Asymptomatic Carotid Emboli Study.
    Matched MeSH terms: Longitudinal Studies
  13. Hassan BA, Yusoff ZB
    Asian Pac J Cancer Prev, 2010;11(6):1523-7.
    PMID: 21338191
    INTRODUCTION: Chemotherapy-induced nausea and vomiting (CINV) is one of the most important worries of cancer patients. Although not life-threatening, it has a great negative impact on quality of life (QOL).

    OBJECTIVE: The aim of this study was to determine the impact of CINV (i.e., acute and delayed) on breast cancer patients QOL and to discern opinions related with antiemetic guidelines used dependent on the three main races in Malaysia (Malay, Chinese, Indian).

    METHODS: In this longitudinal prospective observational study, 158 breast cancer patients treated with chemotherapy were interviewed and valid questionnaires (MANE and ONEM) were used to report the impact of CINV on their QOL within the first 24 hours and after 3 to 5 days of chemotherapy treatment.

    RESULTS: The main result was that delayed CINV has an impact on QOL greater than acute CINV. The impact of nausea was reportedly higher than that of vomiting. Also differences in race i.e., genetic polymorphisms (pharmacogenomics) influenced the utility of antiemetic treatments and patients opinions.

    CONCLUSION: Based on the results of our study a new guideline for antiemetic treatment should be used to reduce the impact of CINV on QOL, taking into account variation in genetic polymorphisms among the three races in Malaysia.

    Matched MeSH terms: Longitudinal Studies
  14. Abdullah JM, Kumaraswamy N, Awang N, Ghazali MM, Abdullah MR
    Asian J Surg, 2005 Jul;28(3):163-7.
    PMID: 16024307
    To use data from a prospective, longitudinal study to determine whether psychomotor functions improve spontaneously during the first year following paediatric traumatic brain injury without modern rehabilitation facilities in a rural area of Malaysia.
    Matched MeSH terms: Longitudinal Studies
  15. Shiek Ahmad B, Wark JD, Petty SJ, O'Brien TJ, Gorelik A, Sambrook PN, et al.
    Epilepsia, 2015 Nov;56(11):1714-22.
    PMID: 26513212 DOI: 10.1111/epi.13136
    To investigate cross-sectional and longitudinal differences in static and dynamic standing balance measures and lower limb muscle strength in patients who are treated chronically with antiepileptic drugs (AEDs).
    Matched MeSH terms: Longitudinal Studies
  16. Choo WY, Hairi NN, Sooryanarayana R, Yunus RM, Hairi FM, Ismail N, et al.
    BMJ Open, 2016 05 25;6(5):e011057.
    PMID: 27225651 DOI: 10.1136/bmjopen-2016-011057
    INTRODUCTION: Despite being now recognised as a global health concern, there is still an inadequate amount of research into elder mistreatment, especially in low and middle-income regions. The purpose of this paper is to report on the design and methodology of a population-based cohort study on elder mistreatment among the older Malaysian population. The study aims at gathering data and evidence to estimate the prevalence and incidence of elder mistreatment, identify its individual, familial and social determinants, and quantify its health consequences.

    METHODS AND ANALYSIS: This is a community-based prospective cohort study using randomly selected households from the national census. A multistage sampling method was employed to obtain a total of 2496 older adults living in the rural Kuala Pilah district. The study is divided into two phases: cross-sectional study (baseline), and a longitudinal follow-up study at the third and fifth years. Elder mistreatment was measured using instrument derived from the previous literature and modified Conflict Tactic Scales. Outcomes of elder mistreatment include mortality, physical function, mental health, quality of life and health utilisation. Logistic regression models are used to examine the relationship between risk factors and abuse estimates. Cox proportional hazard regression will be used to estimate risk of mortality associated with abuse. Associated annual rate of hospitalisation and health visit frequency, and reporting of abuse, will be estimated using Poisson regression.

    ETHICS AND DISSEMINATION: The study has been approved by the Medical Ethics Committee of the University of Malaya Medical Center (MEC Ref 902.2) and the Malaysian National Medical Research Register (NMRR-12-1444-11726). Written consent was obtained from all respondents prior to baseline assessment and subsequent follow-up. Findings will be disseminated to local stakeholders via forums with community leaders, and health and social welfare departments, and published in appropriate scientific journals and presented at conferences.

    Matched MeSH terms: Longitudinal Studies
  17. Heng DM, Lee J, Chew SK, Tan BY, Hughes K, Chia KS
    Ann Acad Med Singap, 2000 Mar;29(2):231-6.
    PMID: 10895345
    INTRODUCTION: This is the first prospective cohort study in Singapore to describe the incidence of ischaemic heart disease (IHD) and stroke among Chinese, Malays and Asian Indians.

    MATERIALS AND METHODS: The Singapore Cardiovascular Cohort Study is a longitudinal follow-up study on a general population cohort of 5920 persons drawn from 3 previous cross-sectional surveys. Morbidity and mortality from IHD and stroke were ascertained by record linkage using a unique identification number with the death registry, Singapore Myocardial Infarct Registry and in-patient discharge databases.

    RESULTS: There were 193 first IHD events and 97 first strokes during 52,806 person-years of observation. The overall incidence of IHD was 3.8/1000 person-years and that of stroke was 1.8/1000 person-years. In both males and females, Indians had the highest IHD incidence, followed by Malays and then Chinese. For males after adjusting for age, Indians were 2.78 times (95% CI 1.86, 4.17; P < 0.0001) and 2.28 times (95% CI 1.34, 3.88; P = 0.002) more likely to get IHD than Chinese and Malays respectively. For females after adjusting for age, Indians were 1.97 times (95% CI 1.07, 3.63; P = 0.03) and 1.37 times (95% CI 0.67, 2.80; P = 0.39) more likely to get IHD than Chinese and Malays respectively. For stroke, male Chinese and Indians had higher incidence than Malays (though not statistically significant). However, in females, Malays had the highest incidence of stroke, being 2.57 times (95% CI 1.31, 5.05; P = 0.008) more likely to get stroke than Chinese after adjustment for age.

    CONCLUSIONS: This prospective study of both mortality and morbidity has confirmed the higher risk of IHD in Indians. It has also found that Malay females have a higher incidence of stroke, which deserves further study because of its potential public health importance.

    Matched MeSH terms: Longitudinal Studies
  18. Panis CW, Lillard LA
    J Health Econ, 1994 Dec;13(4):455-89.
    PMID: 10140534
    This paper is concerned with the relationship between child mortality and the use of health care. We develop a simultaneous model of fetal and postnatal mortality risks and input demand equations for prenatal medical care and institutional delivery. This model is applied to retrospective data from Peninsular Malaysia covering 1950-1988. The results show that prenatal medical care and institutional delivery have strong beneficial effects on child survival probabilities, and that these effects are substantially underestimated when adverse self-selection among users of health care is ignored. The effectiveness of prenatal health care in Malaysia improved until 1980, and then deteriorated. We find that the risk of infant and child mortality is not independent of fetal survival, but show that ignoring selective fetal survival introduces only mild biases in infant and child mortality estimation. Higher infant and child mortality rates among young mothers are partly explained by their lower likelihood of purchasing health care.
    Matched MeSH terms: Longitudinal Studies
  19. Murukesu RR, Singh DKA, Shahar S
    BMC Public Health, 2019 Jun 13;19(Suppl 4):529.
    PMID: 31196015 DOI: 10.1186/s12889-019-6870-6
    BACKGROUND: Urinary incontinence (UI) is known to be more prevalent among women and is associated with decline in quality of life. The aim of our study was to investigate the prevalence, risk factors of urinary incontinence and its impact on quality of life among community dwelling older women living in urban and rural populations.

    METHODS: This study was conducted based on secondary data analysed from the third phase of the longitudinal study "Neuroprotective Model for Health Longevity among Malaysian Elderly" (LRGS TUA). Stratification of urban and rural study areas were in accordance to that determined by the Department of Statistics. A total of 814 community dwelling older women (53% urban, 47% rural), aged 60 years and above, across four states within Peninsular Malaysia were included in this analysis. Interview-based questionnaires were used to obtain respondents' sociodemographic details and clinical characteristics. The Timed Up and Go test and Handgrip Strength tests were used to assess physical function. Urinary incontinence was self-reported, and quality of life of those with incontinence was assessed using the King's Health Questionnaire (KHQ).

    RESULTS: Prevalence of urinary incontinence was 16% and 23% among older women living in urban and rural areas, respectively. Ethnicity was significantly associated with incontinence among older women in both urban and rural population (p 

    Matched MeSH terms: Longitudinal Studies
  20. Abd Hamid IJ, Slatter MA, McKendrick F, Pearce MS, Gennery AR
    J Clin Immunol, 2018 08;38(6):727-732.
    PMID: 30105620 DOI: 10.1007/s10875-018-0540-9
    Hematopoietic stem cell transplantation (HSCT) is curative for severe combined immunodeficiency (SCID), but data on long-term impact of pre-HSCT chemotherapy, immune reconstitution and quality of life (QoL) of specific SCID genotypes are limited. We evaluated the long-term immune-reconstitution, health outcome and QoL in IL7Rα SCID, Artemis and RAG1 and 2 SCID survivors > 2 years post-HSCT in our center. Clinical data and immune reconstitution parameters were collated, and patients/families answered PedsQL generic core scale v4.0 questionnaires. Thirty-nine patients with a diagnosis of IL7Rα SCID (17 patients), Artemis SCID (8 patients) and RAG1/2 SCID (13 patients) had undergone HSCT with median age at last follow up for IL7Rα SCID, 14 years (range 4-27) and Artemis and RAG1/2 SCID, 10 years (range 2-18). Many patients have ongoing medical issues at latest follow-up [IL7Rα (73%), Artemis (85%), RAG1/2 (55%)]. Artemis SCID patients experienced more sequela than RAG1/2 SCID. Conditioned recipients with Artemis and RAG SCID had more CD4+ naïve lymphocytes compared to unconditioned recipients. All patients except those of IL7Rα SCID reported lower QoL; further subset group analysis showed parents and Artemis and RAG1/2 survivors without ongoing medical issues reported normal QoL. Conditioned recipients have superior long-term thymopoiesis, chimerism and immunoglobulin-independence. QoL was normal in those who did not have medical issues at long-term follow-up.
    Matched MeSH terms: Longitudinal Studies
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