Displaying publications 1 - 20 of 237 in total

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  1. Yew KC, Tan QR, Lim PC, Low WY, Lee CY
    Naunyn Schmiedebergs Arch Pharmacol, 2024 Mar;397(3):1421-1431.
    PMID: 37728622 DOI: 10.1007/s00210-023-02716-x
    Direct-acting antivirals (DAA) have become the treatment of choice for hepatitis C. Nevertheless, efficacy of DAA in preventing hepatitis C complications remains uncertain. We evaluated the impact of DAA on hepatocellular carcinoma (HCC) occurrence and recurrence, all-cause mortality, liver decompensation and liver transplantation as compared to non-DAA treated hepatitis C and the association to baseline liver status. A systematic search for articles from March 1993 to March 2022 was conducted using three electronic databases. Randomized, case-control and cohort studies with comparison to non-DAA treatment and reporting at least one outcome were included. Meta-analysis and sub-group meta-analysis based on baseline liver status were performed. Of 1497 articles retrieved, 19 studies were included, comprising of 266,310 patients (56.07% male). DAA reduced HCC occurrence significantly in non-cirrhosis (RR 0.80, 95% CI 0.69-0.92) and cirrhosis (RR 0.39, 95% CI 0.24-0.64) but not in decompensated cirrhosis. DAA treatment lowered HCC recurrence (RR 0.71, 95% CI 0.55-0.92) especially in patients with baseline HCC and waiting for liver transplant. DAA also reduced all-cause mortality (RR 0.43, 95% CI 0.23-0.78) and liver decompensation (RR 0.52, 95% CI 0.33-0.83) significantly. However, DAA did not prevent liver transplantation. The study highlighted the importance of early DAA initiation in hepatitis C treatment for benefits beyond sustained virological response. DAA therapy prevented HCC particularly in non-cirrhosis and compensated cirrhosis groups indicating benefits in preventing further worsening of liver status. Starting DAA early also reduced HCC recurrence, liver decompensation, and all-cause mortality.
  2. Pinto J, Lai SY, Low WY
    J Homosex, 2023 Dec 06;70(14):3399-3420.
    PMID: 35771718 DOI: 10.1080/00918369.2022.2094745
    This study investigated sexual fluidity in attractions and subsequent fluidity in sexual identities, its associations with sexual orientation identity labels, and self-reported likelihood of future change in sexual identity labels in a sample of same-sex attracted Malaysian women and men. Participants completed an online questionnaire measuring sexual fluidity in attractions and sexual identity, sexual orientation identity labels and likelihood of future change in identity labels. Sexual fluidity in attractions was reported by 72% of women and 64% of men, with 44% of women and 38% of men reporting subsequent fluidity in sexual orientation identities. There were no significant gender differences observed in the frequency of sexual fluidity in attractions and change in sexual identity labels. There were also no significant gender differences in the self-reported likelihood of future change in sexual identity labels. Sexual fluidity was found to be associated with sexual identity labels representing non-exclusive sexual attractions for both men and women. Findings provide preliminary support for the presence of facilitative environments within a largely conservative and restrictive sociocultural and political landscape.
  3. Cheah WL, Law LS, Samy AL, Chua BS, Siau CS, Fitriana M, et al.
    Psychol Health Med, 2023 Jan;28(1):189-199.
    PMID: 35437088 DOI: 10.1080/13548506.2022.2063351
    The coronavirus disease (COVID-19) pandemic has affected the well-being of individuals worldwide. Due to the scarcity of information in the Malaysian context, this study aimed at investigating the changes in well-being before and during the Movement Control Order (MCO) in Malaysia and its association with mental health status. This cross-sectional study was part of a Malaysian non-probabilistic online survey on psychosocial well-being in Malaysia, under the Personal and Family Coping with COVID-19 Global South Research Consortium. A total of 543 respondents (≥18 years old) were recruited using snowball sampling. A validated self-administered questionnaire for assessing sociodemographic characteristics, well-being, anxiety, boredom, and loneliness was circulated on social media platforms (such as Facebook, Twitter, and WhatsApp) and emails. Paired samples t-test, chi-square test, and multinomial logistic regression analyses were applied during data analysis. Results revealed significant changes in the mean scores of well-being, anxiety, boredom, and loneliness before and during MCO (p 
  4. Pachaiappan S, Tee MY, Low WY
    Int J Clin Exp Hypn, 2023;71(4):338-349.
    PMID: 37611140 DOI: 10.1080/00207144.2023.2246512
    Test anxiety comprises cognitive, physiological, and behavioral reactions due to anxiety about failure or a lower academic performance score on an exam or evaluation. This study examined the effect of self-hypnosis on reducing test anxiety among upper secondary school students using a quantitative methodology with a pre-experimental design. The prevalence of test anxiety was measured using the Friedben Test Anxiety Scale (FTAS) and students' demographic data were collected. Twenty-two 16-year-old students with moderate to high test anxiety were selected for a self-hypnosis intervention over a period of 5 weeks. The FTAS questionnaire was administered 4 times: at baseline, 3rd week, 5th week, and at follow-up (3 weeks after the intervention). Students' test anxiety differences were statistically significant across 4 time points. Self-hypnosis intervention decreased students' overall test anxiety scores and in the 3 constructs: social, cognitive, and tenseness. The outcomes indicate that self-hypnosis training can help students cope with test anxiety and should be further explored for managing test anxiety in school settings.
  5. Rai NA, Abdul Aziz MJ, Sahid MR, Husain AR, Anjum W, Low WY
    PLoS One, 2023;18(10):e0291873.
    PMID: 37847692 DOI: 10.1371/journal.pone.0291873
    This paper proposes an average current mode controller (ACMC) for a single-phase bridgeless power factor correction (PFC) circuit using a single ended primary inductor converter (SEPIC) via second-order model reduction. The superiority of the proposed controller is PFC accomplished at power up to 350 W with high efficiency via the second-order model reduction. The design and implementation of ACMC on the converter operated with continuous conduction mode (CCM) is explained in detail. ACMC forces input current to follow sinusoidal current reference at different power levels and sustain high power factor (PF). The proposed controller is designed based on the theoretical analysis operation of the circuit. For verification, MATLAB/Simulink simulations are carried out and validation through an experiment test rig for 110-220 Vrms input, 100 Vdc/ 350 W output prototype at 20 kHz switching frequency. It is proven that the proposed controller strategy accomplishes high PF, high efficiency and conformity with the simulation.
  6. Siddiqui MB, Ng CW, Low WY, Abid K
    PLoS One, 2023;18(12):e0278149.
    PMID: 38109305 DOI: 10.1371/journal.pone.0278149
    The majority (40%) of the world's under-five mortality burden is concentrated in nations like Nigeria (16.5%), India (16%), Pakistan (8%), and the Democratic Republic of the Congo (6%), where an undetermined number of under-five deaths go unrecorded. In low-resource settings throughout the world, the Verbal Autopsy-Social Autopsy (VASA) technique may assist assess under-five mortality estimates, assigning medical and social causes of death, and identifying relevant determinants. Uncertainty regarding missing data in high-burden nations like Pakistan necessitates a valid and reliable VASA instrument. This is the first study to validate Child Health Epidemiology Reference Group-CHERG's VASA tool globally. In Pakistan, data from such a valid and reliable tool is vital for policy. This paper reports on the VASA tool in Karachi, Pakistan. Validity and reliability of the CHERG VASA tool were tested using face, content, discriminant validation, and reliability tests on one hundred randomly selected mothers who had recently experienced an under-five child death event. Data were computed on SPSS (version-21) and R software. Testing revealed high Item-content Validity Index (I-CVI) (>81.43%); high Cronbach's Alpha (0.843); the accuracy of between 75-100% of the discriminants classifying births to live and stillbirths; and I-CVI (>82.07% and 88.98% respectively) with high accuracy (92% and 97% respectively) for assigning biological and social causes of child deaths, respectively. The CHERG VASA questionnaire was found relevant to the conceptual framework and valid in Pakistan. This valid tool can assign accurate medical and non-medical causes of child mortality cases occurring in Pakistan.
  7. Chen WS, Siau CS, Bono SA, Low WY
    Asia Pac J Public Health, 2022 01;34(1):106-112.
    PMID: 34550027 DOI: 10.1177/10105395211047868
    The impact of the COVID-19 pandemic on mental health is an emerging problem globally. This study aimed to examine the mediating effect of chronic illnesses in the relationship between psychological health and the acceptance of the COVID-19 vaccine, prior to the national vaccine rollout in Malaysia. An online cross-sectional study was conducted in Malaysia between December 10, 2020, and February 9, 2021. In addition to the descriptive analyses, a mediation analysis was performed to examine the mediating effect of chronic illnesses in the relationship between psychological distress and the willingness to accept the vaccine. A total of 1738 participants completed the survey. The psychological distress levels were found to be significantly different across demographic factors such as age, gender, and social economic status. This study demonstrated a partial mediating effect of chronic illnesses in the relationship between psychological distress and vaccine acceptance.
  8. Chanmekun SB, Zulkifli MM, Muhamad R, Mohd Zain N, Low WY, Liamputtong P
    Support Care Cancer, 2022 Jan;30(1):401-411.
    PMID: 34297219 DOI: 10.1007/s00520-021-06417-0
    PURPOSE: Management of female sexual dysfunction (FSD) is vital for women with breast cancer due to the devastating consequences, which include marital disharmony and reduced quality of life. We explore healthcare providers' (HCPs) perceptions and experiences in managing FSD for women living with breast cancer using a phenomenological approach.

    METHODS: This qualitative study was conducted using a face-to-face interview method with HCPs from two tertiary hospitals in North East Malaysia. The interviews were recorded, transcribed verbatim, and transferred to NVivo ® for data management. The transcriptions were analyzed using thematic analysis.

    RESULTS: Three key barriers were identified through the thematic analysis: a scarcity of related knowledge; the influence of socio-cultural ideas about sex; and the specialty-centric nature of the healthcare system. Most HCPs interviewed had a very narrow understanding of sexuality, were unfamiliar with the meaning of FSD, and felt their training on sexual health issues to be very limited. They viewed talking about sex to be embarrassing to both parties that are both to HCPs and patients and was therefore not a priority. They focused more on their specialty hence limited the time to discuss sexual health and FSD with their patients.

    CONCLUSION: Therefore, interventions to empower the knowledge, break the socio-cultural barriers, and improve the clinic settings are crucial for HCPs in managing FSD confidently.

  9. Samy AL, Kamaruzzaman SB, Chinna K, Shunnmugam B, Krishnaswamy S, Low WY
    Australas J Ageing, 2021 Dec;40(4):423-429.
    PMID: 33942961 DOI: 10.1111/ajag.12958
    OBJECTIVE: This study aimed to determine the psychometric properties of the Bahasa Malaysia (BM) version of the Older Americans Resources and Services-Instrumental Activities of Daily Living (OARS-IADL) questionnaire among older persons in Malaysia.

    METHODS: The English version of OARS-IADL was translated to BM. The psychometric properties of the BM version of OARS-IADL were tested among older persons attending a health-care facility.

    RESULTS: Two hundred and seventy-one older persons participated in the study. The mean age of participants was 67.7 ± 6.1 years. Internal consistency of the items was good (Cronbach's alpha, >0.7). Exploratory factor analysis revealed a single dimension with item factor loadings of >0.5. Confirmatory factor analysis results confirmed a single-factor model (AVE > 50%, CR > 0.7 and CR > AVE).

    CONCLUSION: The BM version of the OARS-IADL questionnaire is a valid and reliable instrument that can be used to assess the IADL among older persons in Malaysia.

  10. See HY, Mohamed MS, Nor SNM, Low WY
    J Empir Res Hum Res Ethics, 2021 12;16(5):487-500.
    PMID: 34292842 DOI: 10.1177/15562646211033191
    Empirical evidence of the ethical review of clinical and biomedical research in Malaysia is limited. We have conducted a convergent mixed methods research, which comprises an online survey and semistructured interviews to examine the challenges in the ethical review of clinical and biomedical research. Data collected reveal that the ethics review process is inconsistent, duplicate, and inadequate. The results indicate a strong need for a centralized ethical review mechanism and a national system for mutual recognition of ethics reviews to improve the effectiveness and efficiency of the ethics review system in Malaysia. A joint research ethics committee review between Malaysia and sponsoring countries for multinational research should also be encouraged as it could address the concerns of the lack of expertise and training.
  11. Che Ya SN, Muhamad R, Zakaria R, Mohd Zain N, Ishak A, Hassan II, et al.
    Arch Sex Behav, 2021 Nov 08.
    PMID: 34750771 DOI: 10.1007/s10508-021-02051-3
    Sexuality is currently neglected in the medical care of cancer patients although female sexual dysfunction (FSD) and sexual problems are highly prevalent among breast cancer patients in Malaysia. This paper explores the consequences of breast cancer and its treatment on the sexuality and sexual health of women with breast cancer using a qualitative design and a phenomenological methodology. Fourteen married women with breast cancer who fulfill the criteria for FSD from Kelantan, Malaysia participated in two interviews: in-depth interview and followed by photo-elicitation interview after two weeks duration. The interviews were audio-recorded, transcribed verbatim, and analyzed using thematic analysis. We identified overlapping themes that can be explained by sexual script theory. Breast cancer treatments disturb the sex response cycle, leading to changes in sexuality, from intimacy in marriage to women preferring physical affection to intercourse. The women struggled with a perceived imperfection about symbol of femininity after noticing changes in their husbands' sexual performance and after experiencing their own sentiments of inadequacy as a wife. Fear and guilt surfaced as part of the journey, accompanied by frustration on the part of the spouse, or him becoming more attentive. This study highlights the problem of breast cancer and its treatment as regards the sexual well-being of patients and their spouses. Hence, recognizing and addressing sexual health will improve the overall experience for survivors.
  12. Samy AL, Awang Bono S, Tan SL, Low WY
    Asia Pac J Public Health, 2021 11;33(8):839-846.
    PMID: 34308673 DOI: 10.1177/10105395211025901
    The COVID-19 outbreak was declared a pandemic by the World Health Organization in March 2020 due to rapid intercontinental spread and high morbidity and mortality. Globally, the disease has had a major impact on human lives, including health, economic, employment, psychological, and overall well-being. The COVID-19, besides causing respiratory, neurological, and cardiovascular diseases, has had significant impact on mental health. Major mental health disorders, including depression, anxiety, and stress, have risen in parallel with increasing prevalence of COVID-19. Many population groups, including children, the elderly, those with chronic illnesses, and health care workers, have been affected. This review gives an overall assessment of the prevalence of COVID-19-associated psychological morbidity. In countries in the Asia-Pacific region, prevalence of depression ranged between 4.9% and 43.1%, anxiety from 7.0% to 43.0%, and stress from 3.4% to 35.7%. As COVID-19 continues to severely affect the psychosocial well-being of the population at large, countries have developed and revised policies, guidelines, and introduced new initiatives to curb mental health issues among their citizens. In the long run, pre-disaster preparedness is important to alleviate long-term post-pandemic psychiatric morbidity and to develop psychological resilience toward disasters and pandemic, alongside investment for better mental health coverage.
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