Displaying publications 1 - 20 of 1236 in total

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  1. Mukherjee T, Sakthivel R, Fong HY, McStea M, Chong ML, Omar SF, et al.
    AIDS Behav, 2018 Oct;22(10):3226-3233.
    PMID: 29508103 DOI: 10.1007/s10461-018-2073-x
    This study determines the optimal cut-off scores for the Montreal Cognitive Assessment (MoCA) to detect HIV-associated neurocognitive disorders (HAND) in a multi-ethnic Malaysian HIV-positive cohort by developing demographically corrected normative standards among 283 HIV-negative community-based controls with overlapping demographic characteristics. The norms (corrected for age, sex, education, ethnicity) were applied to 342 HIV-positive virally suppressed individuals on cART. Impairment rates were classified using the Global Deficit Score (GDS ≥ .5) method. The MoCA was also scored according to the recommended cut-off of ≤ 26, and functional decline was applied to both impairment definitions to classify HAND per the Frascati criteria. The ≤ 26 cut-off considerably overestimated cognitive impairment in both samples (59.4% HIV-negative; 69.3% HIV-positive). In contrast, corrected scores yielded impairment rates consistent with what has been reported internationally in virally suppressed cohorts (23.4% with 83.3% mild impairment, 16.7% moderate impairment). A supplemental file allowing the computation of corrected MoCA scores and impairment status is included.
    Matched MeSH terms: Ethnic Groups
  2. Jamal N, Ng KH, McLean D, Looi LM, Moosa F
    AJR Am J Roentgenol, 2004 Mar;182(3):713-7.
    PMID: 14975974
    This study was undertaken to estimate mammographic breast glandularity in Malaysian women from radiographic data.
    Matched MeSH terms: Ethnic Groups
  3. Lee JK, Amir Sharifuddin MK
    DOI: 10.1111/j.1479-8077.2007.00314.x
    Aims: Hip fracture is frequently studied to reflect osteoporosis related fractures. The aim of this study was to look at ethnic differences in the incidence of hip fractures between the three races in Malaysia. Methods: This was a retrospective study performed for the years 1996 and 1997. Data from hospitals treating hip fractures in elderly patients were collected throughout the whole country. Result: The overall incidence of hip fractures was 90 per 100 000 individuals. Sixty-three percent of patients presenting with hip fractures were Chinese. This was followed by Malays at 20% and Indians, 13%. Race-specific incidence data showed that the fracture rates are highest among the Chinese (160 per 100 000) followed by Indians (150 per 100 000) and Malays (30 per 100 000). Females were twice as commonly affected compared to males. Race and sex-specific incidence data showed that the incidence was highest among Chinese females (220 per 100 000), followed by Indian females (200 per 100 000). The age-specific incidence was 500 per 100 000 for patients above 75 years, compared to 10 per 100 000 in those between 50 and 54 years. Conclusion: Hip fractures arecommon in Malaysia. There are differences in hip fracture incidence depending upon ethnicity. © 2007 Asia Pacific League of Associations for Rheumatology.
    Matched MeSH terms: Ethnic Groups
  4. Hargreaves JA, Matejka JM, Cleaton-Jones PE, Williams S
    ASDC J Dent Child, 1995 Sep-Oct;62(5):353-5.
    PMID: 8550926
    Little new evidence on the prevalence of injury to the anterior teeth of children has been reported in the past five years and, in South Africa, trauma to the teeth of children in different ethnic groups has not been compared respectively. The purpose of this investigation was to determine the prevalence of dental trauma using well-defined criteria and to sample a specific age-group. Five regions were chosen and 1035 children in the eleven-year age-group were examined. No statistical significance was found between the ethnic groups related to the amount of injury sustained. For all groups, boys received more injuries than girls. The most common injury was fracture of the enamel of the maxillary central incisor. With 15 percent of the children receiving some level of trauma by age eleven years, this is one of the main dental treatment needs for South African children.
    Matched MeSH terms: Ethnic Groups
  5. Marhani Midin, Salina Abdul Aziz, Phang, Cheng-Kar
    ASEAN Journal of Psychiatry, 2010;11(2):206-215.
    MyJurnal
    Objective: Mental health services in Malaysia often face competition from traditional healers especially among patients with psychosis. The objective of the study is to determine whether patients who sought help earlier from traditional healers had longer duration of untreated psychosis (DUP), and more adverse experiences in pathways to psychiatric care. Methods: This is a hospital-based cross-sectional study of 50 inpatients with first-episode
    psychosis in Hospital Kuala Lumpur. Structured Clinical Interview for DSM-IV (Diagnostic and statistical manual, 4th edition) Clinical Version for Axis I Disorders (SCID-CV) was used for establishing diagnosis. Onset of psychosis was defined as any one positive symptom with a score of >3 on the Positive and Negative Syndrome Scale (PANSS). Socio-demographic
    data, information on pathways and treatment delaying factors were determined through face-to-face interview and semi-structured questionnaire. Results: Fifty-four percent of the patients had at least one contact with traditional healers prior to consulting psychiatric service, and it was the most popular first point of non-psychiatric help-seeking contact
    (48%). Contact with traditional healers was not associated with age, gender, ethnic, education level, longer DUP or treatment delay, and admissions with violent behaviour or police assistance. Of those who had sought help from traditional healers, one third were recommended by at least one of their traditional healers to seek medical help. Conclusion:
    Consultation involving traditional healers was a popular choice, and not associated with treatment delay. Traditional healers in an urban setting may be potential collaborators in managing patients with first-episode psychosis. Future research should explore the frontiers of such collaborative work.
    Matched MeSH terms: Ethnic Groups
  6. Khairani Omar, Noor Azimah Muhammad, Farihna Mohamed Fadhlullah, Ramli Musa, Jamaiyah Hanif, Adam Bujang
    ASEAN Journal of Psychiatry, 2010;11(1):44-55.
    MyJurnal
    Objective: Family Environment Scale (FES) is one of the most widely used instruments to measure many family aspects. Cross cultural adaptation of the original FES is essential prior to local utilization as different cultures percept their family environments differently. We attempted to translate the FES into the Bahasa Malaysia language for adolescents, evaluate its reliability using internal consistency and compare its results with the original
    study. Methods: This is a cross-sectional study, involving adolescents aged 12-17 from four secondary schools. The adolescents were selected using quota sampling for different age, ethnic and academic performance. The study was divided into four phases, namely: i) translation of FES, ii) pilot test iii) internal consistency reliability test and iv) comparison of the study results with the original FES. Results: A total of 295 adolescents participated in this study. All of the reliability measurements generated (ranged between Cronbach’s alpha 0.10 - 0.70) were lower than those originally reported for this instrument (ranged between Cronbach’s alpha 0.61 -0.78). Five subscales in the Bahasa Malaysia version were found to be less than Cronbach’s alpha 0.5, which were below the acceptable level for practical or research use. There was considerable variation observed between the sample population of this study and that of the original study, which could be due to the social cultural differences. Conclusion: The Bahasa Malaysia version of FES requires further culturally
    appropriate revision. A new measuring scale could also be devised to provide an accurate evaluation of the family environment as perceived by Malaysian adolescents, which has acceptable levels of reliability and validity.
    Matched MeSH terms: Ethnic Groups
  7. Deurenberg P, Deurenberg-Yap M
    Acta Diabetol, 2003 Oct;40 Suppl 1:S246-9.
    PMID: 14618484
    Most in vivo body composition methods rely on assumptions that may vary among different population groups as well as within the same population group. The assumptions are based on in vitro body composition (carcass) analyses. The majority of body composition studies were performed on Caucasians and much of the information on validity methods and assumptions were available only for this ethnic group. It is assumed that these assumptions are also valid for other ethnic groups. However, if apparent differences across ethnic groups in body composition 'constants' and body composition 'rules' are not taken into account, biased information on body composition will be the result. This in turn may lead to misclassification of obesity or underweight at an individual as well as a population level. There is a need for more cross-ethnic population studies on body composition. Those studies should be carried out carefully, with adequate methodology and standardization for the obtained information to be valuable.
    Matched MeSH terms: Ethnic Groups*
  8. Lie-Injo LE, Fix A, Bolton JM, Gilman RH
    Acta Haematol., 1972;47(4):210-6.
    PMID: 4625303
    Matched MeSH terms: Ethnic Groups
  9. Chong PP, Tung CH, Rahman NA, Yajima M, Chin FW, Yeng CL, et al.
    Acta Ophthalmol, 2014 Nov;92(7):e569-79.
    PMID: 25043991 DOI: 10.1111/aos.12427
    The aim of the study was to determine the prevalence of human papillomavirus (HPV) in primary and recurrent pterygia samples collected from different ethnic groups in the equatorial Malay Peninsula.
    Matched MeSH terms: Ethnic Groups*
  10. Morgan IG, Rose KA, Ellwein LB, Refractive Error Study in Children Survey Group
    Acta Ophthalmol, 2010 Dec;88(8):877-84.
    PMID: 19958289 DOI: 10.1111/j.1755-3768.2009.01800.x
    PURPOSE: To determine the natural end-point for refractive development during childhood.

    METHODS: Cycloplegic (1% cyclopentolate) autorefraction was performed on 38, 811 children aged 5 and 15 in population-based samples at eight sites in the Refractive Error Study in Children (RESC). Refractions (right eye) were categorized as myopic (≤-0.5 D), emmetropic (>-0.5 to ≤+0.5 D), mildly hyperopic (>+0.5 to ≤+2.0 D and hyperopic (>+2.0 D).

    RESULTS: At five sites (Jhapa - rural Nepal, New Delhi - urban India, Mahabubnagar - rural India, Durban - semi-urban South Africa and La Florida - urban Chile), there was <20% myopia by age 15. Mild hyperopia was the most prevalent category at all ages, except for Mahabubnagar where emmetropia became the marginally most prevalent category at ages 14 and 15. At the other sites (Gombak - semi-urban Malaysia, Shunyi - semi-rural China and Guangzhou - urban China), there was substantial (>35%) myopia by age 15. At these sites, mild hyperopia was the most prevalent category during early childhood, and myopia became the predominant category later. In Gombak district and Guangzhou, emmetropia was a minor category at all ages, with myopia increasing as mild hyperopia decreased. In Shunyi district, emmetropia was the most prevalent category over the ages 11-14.

    CONCLUSION: Emmetropia was not the predominant outcome for refractive development in children. Instead, populations were predominantly mildly hyperopic or substantial amounts of myopia appeared in them. This suggests that mild hyperopia is the natural state of refractive development in children and that emmetropia during childhood carries the risk of subsequent progression to myopia.

    Matched MeSH terms: Ethnic Groups
  11. Noh LM, Ismail Z, Zainudin BM, Low SM, Azizi BH, Noah RM, et al.
    Acta Paediatr Jpn, 1995 Jun;37(3):331-5.
    PMID: 7645382
    X linked agammaglobulinemia (XLA) is rarely reported from developing countries especially from South East Asia. It appears that X linked agammaglobulinemia is less common in certain ethnic groups. It is very uncommon in black people in USA and South Africa. In multiracial Malaysia we have documented five XLA in Malays and Indians but not in the Chinese that constitute about 31% of the population. First degree relatives afflicted with XLA or other primary immunodeficiencies occurred more often in our study. All showed lung involvement although the etiologic organisms involved were atypical, being Gram negative.
    Matched MeSH terms: Ethnic Groups*
  12. Omar AH
    Acta Paediatr Jpn, 1990 Apr;32(2):183-7.
    PMID: 2116069
    In a cross-sectional study of 7 to 12-year-old primary school children in Kuala Lumpur, the prevalence of chronic cough and/or phlegm, persistent wheeze, and doctor-diagnosed asthma were 8.0%, 8.0% and 8.7%, respectively. The prevalence of asthma (defined as persistent wheeze and/or doctor-diagnosed asthma) was 13.8%. 4.3% experienced at least one episode of chest illness that resulted in inactivity for at least 3 days in the previous year. The mean age of commencement of symptoms in the doctor-diagnosed asthma group was 2.75 years. The prevalence of chronic cough and/or phlegm and persistent wheeze were highest among Indian children (p less than 0.05). More Malays had been diagnosed as having asthma than the other ethnic groups but the differences were not statistically significant. The patients' fathers' low levels of education were associated with chronic cough and/or phlegm (p less than 0.05) but not with other complaints. Asthma was significantly more common among boys than girls. No age differences were noted. Further analysis showed that persistent wheeze and doctor-diagnosed asthma were associated with increased likelihood of other respiratory illnesses or doctor-diagnosed allergy before the age of 2 years.
    Matched MeSH terms: Ethnic Groups
  13. Razali SM, Khan UA, Hasanah CI
    Acta Psychiatr Scand, 1996 Oct;94(4):229-33.
    PMID: 8911557
    The concept of aetiology of mental illness in 134 Malay patients was investigated by means of a 20-item checklist. About 53% of the patients attributed their illnesses to supernatural agents. Witchcraft and possession by evil spirits were regarded as common causes of illness. The number of patients who believed in supernatural causes of their mental illness was significantly higher among those who had consulted bomohs (Malay traditional healers) than among those who had not consulted them. The belief that mental illness is caused by supernatural agents is firmly held by bomohs, who reinforce this notion in those who seek their advice. Belief in supernatural causes of mental illness was not significantly associated with age, gender, level of education or occupation of the patients. Patients who believed in supernatural causes of mental illness were also found to show poor drug compliance, and the number of such patients at 6 months follow-up was significantly lower than the corresponding figure for those who did not believe in supernatural causes. The importance of understanding the patients' cultural background when treating psychiatric patients is highlighted.
    Matched MeSH terms: Ethnic Groups/psychology*
  14. Schratz A, Pineda MF, Reforma LG, Fox NM, Le Anh T, Tommaso Cavalli-Sforza L, et al.
    Adv Parasitol, 2010;72:79-107.
    PMID: 20624529 DOI: 10.1016/S0065-308X(10)72004-2
    Ethnic minority groups (EMGs) are often subject to exclusion, marginalization and poverty. These characteristics render them particularly vulnerable to neglected diseases, a diverse group of diseases that comprise bacteria, ecto-parasites, fungi, helminths and viruses. Despite the health policy relevance, only little is known of the epidemiological profile of neglected diseases among EMGs. We reviewed country data from Australia, Cambodia, Lao People's Democratic Republic, Malaysia, the Philippines and Vietnam and found several overlaps between regions with high proportions of EMG population and high prevalence rates of neglected diseases (infections with soil-transmitted helminths, filarial worms, schistosomes, food-borne trematodes and cestodes). While the links are not always clearly evident and it is impossible to establish correlations among highly aggregated data without control variables-such as environmental factors-there appear indeed to be important linkages between EMGs, socio-economic status and prevalence of neglected diseases. Some determinants under consideration are lack of access to health care and general health status, poverty and social marginalization, as well as education and literacy. Further research is needed to deepen the understanding of these linkages and to determine their public health and socio-economic significance. In particular, there is a need for more data from all countries in the Western Pacific Region that is disaggregated below the provincial level. Selected case studies that incorporate other control variables-such as risk factors from the physical environment-might be useful to inform policy makers about the feasibility of prevention and control interventions that are targeted at high-risk EMGs.
    Matched MeSH terms: Ethnic Groups*
  15. Noh LM, Latiff AHA, Ismail IH, Noah RM, Wahab AA, Hamid IJA, et al.
    Allergy Asthma Clin Immunol, 2021 May 17;17(1):50.
    PMID: 34001231 DOI: 10.1186/s13223-021-00551-4
    BACKGROUND: A retrospective review of clinical manifestations and demographic pattern of patients diagnosed as chronic granulomatous disease (CGD) from 7 hospitals in Malaysia. An analysis of the available database would establish clinical characteristics, diagnoses and outcome including microbiologic pattern. Studying the demography allows us to document the occurrence of CGD amongst multiethnic groups and its geographical distribution for Malaysia.

    METHODS: Data from the Malaysia Primary Immunodeficiency Network (MyPIN) with cases of CGD diagnosed from 1991 until 2016 were collated and analysed.

    RESULTS: Twenty patients were diagnosed as CGD. Males (N = 13, 65%) outnumber females (N = 7, 35%). CGD is commonest amongst the Malays (65%) followed by the Chinese (15.0%), Indians (10.0%) and natives of Borneo (10.0%), reflecting the ethnic composition of the country. The mean age of diagnosis was 3.7 years. There was a positive family history in 40% of the cases. Abscess was the main presenting feature in 16 patients (80%) with one involving the brain. Pneumonia occurred in 10 (50%) and one with complicated bronchiectasis. Catalase-positive bacteria were the most commonly isolated pathogen with Chromobacterium violaceum predominating (N = 5, 25%) with consequent high mortality (N = 4, 80%). All CGD patients with C. violaceum infection displayed CD4 + (T helper cells) lymphopenia.

    CONCLUSION: This study has shown CGD occurs in the major ethnic groups of Malaysia. To the best of our knowledge, this is the first and the largest series of chronic granulomatous disease in South East Asia which may be reflective of similar clinical pattern in the region. C. violaceum infection is associated with a higher mortality in CGD patients in Malaysia. All the CGD patients with C. violaceum infection in this patient series displayed CD4 + (T helper) lymphopenia. We recorded rare clinical manifestation of CGD viz. brain abscess and bronchiectasis.

    Matched MeSH terms: Ethnic Groups
  16. Luo N, Teng TK, Tay WT, Anand IS, Kraus WE, Liew HB, et al.
    Am Heart J, 2017 Sep;191:75-81.
    PMID: 28888273 DOI: 10.1016/j.ahj.2017.06.016
    BACKGROUND: Assessing health-related quality of life (HRQoL) in patients with heart failure (HF) is an important goal of clinical care and HF research. We sought to investigate ethnic differences in perceived HRQoL and its association with mortality among patients with HF and left ventricular ejection fraction ≤35%, controlling for demographic characteristics and HF severity.

    METHODS AND RESULTS: We compared 5697 chronic HF patients of Indian (26%), white (23%), Chinese (17%), Japanese/Koreans (12%), black (12%), and Malay (10%) ethnicities from the HF-ACTION and ASIAN-HF multinational studies using the Kansas City Cardiomyopathy Questionnaire (KCCQ; range 0-100; higher scores reflect better health status). KCCQ scores were lowest in Malay (58±22) and Chinese (60±23), intermediate in black (64±21) and Indian (65±23), and highest in white (67±20) and Japanese or Korean patients (67±22) after adjusting for age, sex, educational status, HF severity, and risk factors. Self-efficacy, which measures confidence in the ability to manage symptoms, was lower in all Asian ethnicities (especially Japanese/Koreans [60±26], Malay [66±23], and Chinese [64±28]) compared to black (80±21) and white (82±19) patients, even after multivariable adjustment (Pethnicities, KCCQ strongly predicted 1-year mortality (HR 0.45, 95% CI 0.30-0.67 for highest vs lowest quintile of KCCQ; P for interaction by ethnicity .101).

    CONCLUSIONS: Overall, HRQoL is inversely and independently related to mortality in chronic HF but is not modified by ethnicity. Nevertheless, ethnic differences exist independent of HF severity and comorbidities. These data may have important implications for future global clinical HF trials that use patient-reported outcomes as endpoints.

    Matched MeSH terms: Ethnic Groups*
  17. Hanafi S, Hassan R, Bahar R, Abdullah WZ, Johan MF, Rashid ND, et al.
    Am J Blood Res, 2014;4(1):33-40.
    PMID: 25232503
    The aim of this study was to adapt MARMS with some modifications to detect beta mutation in our cohort of thalassemia patients. We focused only on transfusion-dependent thalassemia Malay patients, the predominant ethnic group (95%) in the Kelantanese population. Eight mutations were identified in 46 out of 48 (95.83%) beta thalassemia alleles. Most of the patients (54.2%) were compound heterozygous with co-inheritance Cd 26 (G>A). The frequencies of spectrum beta chain mutation among these patients are presented in Table 2. Among the transfusion dependent beta thalassemia Malay patients studied, 26 patients were found to be compound heterozygous and the main alleles were Cd 26 (G>A). Compound heterozygous mutation of Cd 26 (G>A) and IVS 1-5 (G>C) were 12 (46.2%), Cd 26 (G>A) and Cd 41/42 (TTCT) were 9 (34.6%), Cd 26 (G>A) and IVS 1-1 (G>C) were 2 (7.7%) respectively. Meanwhile the minority were made of a single compound heterozygous of Cd 26 (G>A) and Cd 71/72, Cd 26 (>A) and Cd 17 (A>T), Cd 26 (G>A) and -28 (G>A) respectively. Twenty out of forty six patients were shown to have homozygous of IVS 1-5 (G>C) were 2 (10.0%), Cd 26 (G>A) were 15 (75.0%), Cd 19 (A>G) were 1 (5.0%), and IVS 1-1 (G>T) were 2 (10.0%). The beta chain mutations among the Kelantanese Malays followed closely the distribution of beta chain mutations among the Thais and the Malays of the Southern Thailand. The G-C transition at position 5 of the IVS 1-5 mutation was predominant among the Malay patients. In conclusion, this method has successfully identified the mutation spectrum in our cohort of transfusion-dependent beta thalassemia patients, and this method is equally effective in screening for mutation among thalassemia patients.
    Matched MeSH terms: Ethnic Groups
  18. Komahan K, Reidpath DD
    Am J Epidemiol, 2014 Aug 1;180(3):325-9.
    PMID: 24944286 DOI: 10.1093/aje/kwu129
    Correct identification of ethnicity is central to many epidemiologic analyses. Unfortunately, ethnicity data are often missing. Successful classification typically relies on large databases (n > 500,000 names) of known name-ethnicity associations. We propose an alternative naïve Bayesian strategy that uses substrings of full names. Name and ethnicity data for Malays, Indians, and Chinese were provided by a health and demographic surveillance site operating in Malaysia from 2011-2013. The data comprised a training data set (n = 10,104) and a test data set (n = 9,992). Names were spliced into contiguous 3-letter substrings, and these were used as the basis for the Bayesian analysis. Performance was evaluated on both data sets using Cohen's κ and measures of sensitivity and specificity. There was little difference between the classification performance in the training and test data (κ = 0.93 and 0.94, respectively). For the test data, the sensitivity values for the Malay, Indian, and Chinese names were 0.997, 0.855, and 0.932, respectively, and the specificity values were 0.907, 0.998, and 0.997, respectively. A naïve Bayesian strategy for the classification of ethnicity is promising. It performs at least as well as more sophisticated approaches. The possible application to smaller data sets is particularly appealing. Further research examining other substring lengths and other ethnic groups is warranted.
    Matched MeSH terms: Ethnic Groups*
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